highaltitude.log.20100326

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[00:02] <fsphil> nah, no problems
[00:03] <PCirrus-Away> sweet
[00:03] <fsphil> I did make a mistake in the code that set both mark and space on at the same time
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[00:04] <PCirrus-Away> :)
[00:04] <fsphil> thought I'd broke it for a while
[00:04] <PCirrus-Away> well I just hope our manually timed ascii works
[00:04] <PCirrus-Away> really heath robinson
[00:04] <fsphil> lol should be fine
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[00:05] <PCirrus-Away> i reckon one solid day at it should have us really nearly ready
[00:05] <earthshine> evening
[00:05] <PCirrus-Away> its just fitting that in atm is fun and games
[00:06] <PCirrus-Away> evening earthshine
[00:06] <fsphil> hiya earthshine
[00:06] <fsphil> you have all the bits you need now? (sans radio)
[00:06] <PCirrus-Away> we think so
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[00:06] <PCirrus-Away> got balloon
[00:06] <PCirrus-Away> got parachute
[00:06] <PCirrus-Away> got line
[00:07] <PCirrus-Away> and the electronics should be grand
[00:07] <PCirrus-Away> you got any spare max232 chips in case i need them lol
[00:07] <fsphil> yea, got a couple here
[00:07] <fsphil> 5v and 3.3v versions
[00:07] <PCirrus-Away> to be honest if our picaxe talks to the gps ok we are sorted
[00:08] <PCirrus-Away> were just going to try the whole program with the radio and go from there
[00:08] <PCirrus-Away> we haven't had time to test individually, but there isn't a whole lot to go wrong
[00:08] <PCirrus-Away> he says now
[00:09] <fsphil> haha
[00:09] <fsphil> I've still to do the gps bits, once I've got the image bits sorta working I'll spend some time on that
[00:10] <PCirrus-Away> right, got to get some more video editing done for my old school
[00:10] <PCirrus-Away> that place hasn't given me a chance to miss it!
[00:10] <fsphil> lol
[00:10] <PCirrus-Away> being the school technical guy was a bad choice
[00:10] <PCirrus-Away> now i can't escape it!
[00:10] <fsphil> I did that, but there where others to take over from me ;-)
[00:11] <PCirrus-Away> yeah, audio wise i was training people the whole time
[00:11] <PCirrus-Away> but as far as video editing
[00:11] <PCirrus-Away> pah
[00:11] <PCirrus-Away> kids these days
[00:11] <PCirrus-Away> i just learn't by playing with movie maker
[00:11] <PCirrus-Away> on a weekend
[00:11] <earthshine> PCirrus-Away: What country are you ?
[00:11] <PCirrus-Away> Northern Ireland
[00:11] <fsphil> as a linux user, I don't believe in video editing ;-)
[00:11] <PCirrus-Away> yeow
[00:12] <PCirrus-Away> well i dont believe in linux
[00:12] <fsphil> yep, it's all a myth :)
[00:12] <earthshine> It's all just a pigment of your imagination
[00:12] <PCirrus-Away> its one of those pc skills that is quite simple that no one will learn because they think its too difficult
[00:13] <PCirrus-Away> and as far as linux goes.... well coding for video cant be easy
[00:13] <fsphil> I've yet to find a video editor I like on linux - they're all pretty weak
[00:14] <PCirrus-Away> one day
[00:14] <PCirrus-Away> just reverse engineer some commercial software
[00:14] <PCirrus-Away> just like that
[00:14] <PCirrus-Away> easy
[00:15] <PCirrus-Away> i actually really like windows 7, such a relief after the chaos of vista
[00:15] <PCirrus-Away> and when uni gives you the full version for free then I can't complain
[00:16] <fsphil> I've only seen it a few times .. it's... interesting
[00:17] <PCirrus-Away> very stable for us anyway
[00:17] <fsphil> sort of a mutation between KDE and OS X .. very un-windows like
[00:17] <PCirrus-Away> and the 64 bit support is now very good
[00:17] <PCirrus-Away> i agree its getting away from the old style, but in a generally good way
[00:18] <PCirrus-Away> the window snapping etc is genuinely useful
[00:18] <PCirrus-Away> its not just gimmicks like we got with vista
[00:18] <fsphil> still no multi-desktop support
[00:18] <fsphil> or does it?
[00:18] <fsphil> virtual desktop I mean
[00:19] <PCirrus-Away> yes
[00:19] <PCirrus-Away> I don't but I know someone who runs virtual all the time
[00:19] <PCirrus-Away> you can quite easilly run xp virtually in it as well
[00:19] <fsphil> I've got four desktops setup here .. one for email, one for irc, one for development stuff and another for browsing
[00:19] <PCirrus-Away> handy for really old programs
[00:20] <PCirrus-Away> four monitors to go with your four desktops?
[00:20] <fsphil> just the one
[00:20] <earthshine> I have 3 :)
[00:20] <PCirrus-Away> now thats more like it
[00:20] <fsphil> there's a little button in the corner to switch between them
[00:20] <earthshine> But then I do video editing so need it
[00:21] <fsphil> 3 monitors? or 3 virtual desktops?
[00:21] <PCirrus-Away> almost like switching windows then
[00:21] <earthshine> 3 monitors
[00:21] <fsphil> basically yea PCirrus-Away -- also easy to drag and drop windows between them
[00:21] <earthshine> it's a 27" iMac with 2 x 19" side monitors
[00:21] <PCirrus-Away> MAC
[00:21] <PCirrus-Away> AHHHHHHHHHHHHH
[00:21] <PCirrus-Away> a CREATIVE
[00:21] <earthshine> :D
[00:22] <PCirrus-Away> professional video editing?
[00:22] <fsphil> I've a mac and I'm not creative *g*
[00:22] <PCirrus-Away> i was appealing to a stereotype
[00:22] <earthshine> I only pretened to be creative
[00:22] <fsphil> I've got linux on it too, so I'm probably disqualified anyway
[00:23] <earthshine> Well I also run XP, Linux and Open Solaris in Virtual Box on it too
[00:23] <PCirrus-Away> I like them but too be honest do you think as many students etc would buy them if they didn't have an awesome case design
[00:24] <earthshine> I bought my first Mac about 3 years ago after finding my fully legal and purchased copy of XP couldn;t be installed any more as i'd used up "all of my install quota"
[00:24] <fsphil> ooch
[00:24] <PCirrus-Away> i mean if macs looked like a thinkpad or whatever, people would't be raving
[00:24] <earthshine> So I thought, fuck you Microsoft, and bought an Apple on a whim - and haven't looked back since
[00:24] <Lunar_Lander> yay
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[00:24] <PCirrus-Away> ohh my they are everywhere!
[00:25] <earthshine> I don't care what they look like (though the 27" iMac is so cool) I love them because they are totally reliable and work super fast even when you have 20 programs running at once - very rarely crash, etc.
[00:25] <PCirrus-Away> same here........ on win7
[00:25] <PCirrus-Away> vista was crap
[00:25] <earthshine> 100 times more reliable than any PC I have ever owned
[00:25] <fsphil> the mac mini is pretty cool -- though I think the decision to not have screws was a bad one
[00:25] <PCirrus-Away> for people like us anyway
[00:25] Action: fsphil likes to open things
[00:25] <epictetus> my stepson's macbook pro is on its 4th motherboard
[00:25] <PCirrus-Away> I void warranties
[00:25] <PCirrus-Away> ohhhhhhhhhhhh
[00:26] <PCirrus-Away> one that needed a new part!
[00:26] <earthshine> fsphil is it not torx screws?
[00:26] <fsphil> no screws at all earthshine
[00:26] <PCirrus-Away> actually in balance ive found Mac accesory hardware to be very unreliable
[00:27] <PCirrus-Away> when doing presentations in church, 70% of people who show up with a MAC rgb adaptor have a broken one
[00:27] <earthshine> Maybe God hates Apple
[00:27] <fsphil> God is the anti-Jobs?
[00:27] <PCirrus-Away> lol
[00:28] <PCirrus-Away> gaffer tape to the table usually fixes it
[00:28] <PCirrus-Away> God loves Gaffer tape
[00:28] <fsphil> the universe is held together with gaffer tape. it's probably what dark matter is
[00:29] <earthshine> I see Robert's thing is now on the BBC website
[00:29] <PCirrus-Away> just thinking about it is it not traditionally eve eating an APPLE that brought sin into the world
[00:29] <earthshine> it sure has got around a lot today
[00:29] <PCirrus-Away> :)
[00:29] <PCirrus-Away> you were right earthshine
[00:30] <fsphil> poor Rob - I bet his phone hasn't stopped ringing today
[00:30] <earthshine> I bet
[00:30] <PCirrus-Away> he's loving it on the inside
[00:30] <earthshine> Still... it's great PR for the hobby
[00:30] <PCirrus-Away> his 15 mins
[00:31] <fsphil> likely our launch will only get on the news if it lands on some little old lady somewhere
[00:31] <PCirrus-Away> good and bad... as long as joe blogs doesn't start chucking balloons into the air with carefree abandon.. leading to tighter restrictions
[00:31] <PCirrus-Away> we could arrange that
[00:31] <fsphil> lol
[00:32] <PCirrus-Away> but we should be the first in NI
[00:32] <earthshine> Cool
[00:32] <fsphil> I think it is
[00:32] <PCirrus-Away> well the newtownards chronicle might be interested!
[00:33] <Lunar_Lander> earthshine could I have a link to the BBC website please?
[00:33] <fsphil> welp, half day tomorrow but it always seems to end up busier than the rest of the week. night all!
[00:33] <earthshine> http://news.bbc.co.uk/1/hi/sci/tech/8588156.stm
[00:33] <Lunar_Lander> thanks
[00:34] <fsphil> night all
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[00:34] <PCirrus-Away> same here... ive work to do
[00:34] <earthshine> cya
[00:34] <PCirrus-Away> and don't stand near your apple in a lightening storm
[00:36] <earthshine> lol
[00:36] <earthshine> OK i'm off to bed too
[00:36] <earthshine> Night all
[00:36] <Lunar_Lander> I'm shutting down too
[00:37] Nick change: PCirrus-Away -> PCirrus-vid-edit
[00:37] <Lunar_Lander> earthshine night and thanks for the link!
[00:37] <Lunar_Lander> good night!
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[04:24] <rjharrison> Morning all
[04:25] <rjharrison> ping natrium42
[04:31] <natrium42> rjharrison, sup?
[04:35] <rjharrison> Hoes it going
[04:36] <natrium42> good, too much work at the end of term :S
[04:36] <natrium42> crazy day yesterday, huh? :)
[04:38] <rjharrison> Yep just logged into my email
[04:38] <rjharrison> 6800 new emails
[04:38] <rjharrison> Apparently it even got to the US
[04:39] <natrium42> :D
[04:39] <rjharrison> BBC Boston want me to do an interview this moning and something for NBC on Saturday
[04:39] <rjharrison> Weird
[04:39] <natrium42> nice, maybe it will air on BBC international
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[05:13] <rjharrison> I'm glad we don't need the server for launch at the moment
[05:13] <rjharrison> It's almost broke due to the traffic
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[05:37] <natrium42> rjharrison, are you running wp-supercache or similar?
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[05:40] <rjharrison> no my website has given up
[05:40] <natrium42> you should really
[05:40] <rjharrison> I'll have a look
[05:41] <natrium42> generating pages on each request is :S
[05:41] <rjharrison> have just done a mod rewrite on apache to the flickr page
[05:41] <natrium42> good thinking
[05:41] <rjharrison> put a short explaination on the flickr page
[05:55] <juxta_> hey rjharrison
[06:05] <rjharrison> Hey juxta_
[06:05] <rjharrison> natrium42 thanks cahe enabled
[06:05] <rjharrison> cache
[06:05] <juxta_> how's things?
[06:07] <rjharrison> Well it's been a bit busy
[06:07] <rjharrison> Had a bit of media attention
[06:10] <rjharrison> How are things with you juxta_
[06:10] <juxta_> not too bad :)
[06:10] <juxta_> saw the media attention you mentioned, just shot you an email a while ago ;)
[06:11] <juxta_> you made our aussie news sites, hehe
[06:11] <rjharrison> LOL
[06:11] <rjharrison> it's been a bit crazy really
[06:12] <juxta_> hehe
[06:13] <juxta_> what happened exactly rjharrison? a friend of mine just told me today 'hey I read something in the news today about a guy in the UK sending up balloons being contacted by NASA'
[06:13] <rjharrison> lol just watched the link
[06:13] <juxta_> I figured it was either you or jcoxon ;)
[06:14] <rjharrison> Basically the NASA stuff is totally out of proportion
[06:14] <rjharrison> NASA never called but that's the press
[06:14] <juxta_> haha
[06:14] <rjharrison> I'm not really sure what caused the media storm
[06:15] <rjharrison> but it was weird getting calls from NBC and New York Times
[06:15] <juxta_> it's always like that with media though - I wrote a little paper on a piece of malware that infected routers a while ago
[06:16] <juxta_> for a long time nothing much happened, then all of the sudden I was getting calls from security magazines and such
[06:16] <rjharrison> It's a bit weird
[06:17] <rjharrison> There were some people saying I had plagurised their idea even though they only launched last year :)
[06:17] <juxta_> haha
[06:17] <rjharrison> It's all a bit of fun
[06:18] <rjharrison> I'm doing a phone interview with New York Radio at lunch time today
[06:18] <rjharrison> And NBC want to do some filming at the weekend
[06:19] <rjharrison> The neighbours were a bit confused with the 3 sat trucks outside the house bskyb, bbc and ITV I think they must think I have murdered someone :)
[06:23] <rjharrison> Right need to start the day
[06:24] <rjharrison> At least the DofS on my server has reduced with the redirect
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[07:10] <phanatik> so who set the balloon into space?
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[07:12] <rjharrison> hehe that was 2 years ago
[07:12] <rjharrison> but I think I'm resposible for the media :)
[07:12] <rjharrison> Seemd to have gone global for the last 24 hours
[07:13] <rjharrison> Apparently on the midday news in New Zealand
[07:13] <rjharrison> I needs to do some work today as yeaterday was a washout
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[07:15] <natrium42> :)
[07:17] <phanatik> in Aus too
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[07:19] <natrium42> phanatik, we have some AUS regulars
[07:20] <natrium42> actuall, i think one
[07:20] <natrium42> but he launched recently --> http://projecthorus.org
[07:20] <phanatik> oh yeah cool
[07:20] <phanatik> :D
[07:21] <phanatik> thanks
[07:21] <natrium42> np
[07:22] Action: natrium42 Zzz
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[09:11] <earthshine> morning
[09:21] <GW8RAK> Morning. Does anyone know of any potential flights in the next few weeks?
[09:21] <GW8RAK> Some of my contacts who know about my plans want to listen in before we launch.
[09:25] <jonsowman> http://www.srcf.ucam.org/~cuspaceflight/hourly-predictions/#
[09:25] <jonsowman> GW8RAK: this is the issue with launching at the moment
[09:26] <jonsowman> it's going in the drink...
[09:26] <earthshine> Could be like that for days, weeks or months
[09:26] <jonsowman> earthshine: yeh
[09:27] <jonsowman> bbl
[09:31] <Randomskk> http://arielwaldman.com/2010/03/25/hacking-space-with-hackerspaces/
[09:31] <Randomskk> NBC nightly news too
[09:35] <russss> bonus for the niel degrasse tyson comment
[09:35] <russss> I saw that on ariel's blog but I didn't actually watch it and see it was about rjharrison! :P
[09:39] <GW8RAK> Thanks for the infomation. Okay, will have to keep monitoring. These are presumably launches from Cambridge area.
[09:39] <Randomskk> GW8RAK: yea
[09:39] <GW8RAK> Does the CAA allow launches from other locations?
[09:39] <Randomskk> and with certain flight parameters
[09:39] <Randomskk> GW8RAK: yes, but you need to get a NOTAM for that location
[09:39] <Randomskk> we have a general one for two sites in cambridge, so anyone can launch from there if we're around to ring up air traffic control etc
[09:41] <Randomskk> make too http://blog.makezine.com/archive/2010/03/more_bodging_missions_to_the_edge_o.html though I suspect that's the least of your concerns
[09:43] <GW8RAK> That was my understanding of the process. Thanks
[09:44] <GW8RAK> The problem for the media with yesterday's story was that rjh doesn't look like a mad scientist. Just normal.
[09:46] <earthshine> I wonder why he was wearing a suit though? Did he just get home from work when the TV crew arrived?
[09:54] <GW8RAK> randomskk - with your general NOTAM, how much of a time window for launch do you have to give?
[09:55] <Randomskk> half an hour or less
[09:55] <Randomskk> by and large
[09:56] <Randomskk> just ring them up as we're getting ready then again moments before release
[09:57] <GW8RAK> Thanks for that. I'm hoping to get my payload working over the Easter weekend and can then start planning a launch or two.
[09:59] <GW8RAK> But that depends on wind conditions. Do I take it from the comment above, that the summer winds tend to take things a long way out to the East?
[10:00] <Randomskk> they tend to vary a lot
[10:00] <Randomskk> and right now they are really bad
[10:00] <Randomskk> it's hard to say if they'll get better in a week or a month
[10:00] <GW8RAK> Well I hope to be launching from Mid or North Wales, so plenty of land to fly over.
[10:01] <Randomskk> that will help a lot
[10:02] <GW8RAK> North Wales is more convenient, but most transatlantic flights go over here, so a move south should make it easier to get permission
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[11:01] <rjharrison> Morning all
[11:03] <Randomskk> yo
[11:03] <Randomskk> rjharrison: you got on NBC news too
[11:03] <edmoore> I think he knows!
[11:03] <Randomskk> :P
[11:04] <edmoore> the GPSL mailing list turned into a bit of a storm of 'why the f is this on the news, we have been doing this for years' when they saw it on NBC. happy days on the internets.
[11:04] <earthshine> GPSL ?
[11:05] <edmoore> great planes superlaunch
[11:05] <rjharrison> edmoore, sorry about that
[11:05] <edmoore> lol at this comment on slashdot: http://science.slashdot.org/comments.pl?sid=1595490&cid=31616328
[11:05] <jagb> Robert, i'm fascinated to know how the retrieval went - you're in the UK, the biggest thing concerning me about a launch like this is retrieval, did the balloon travel far?
[11:05] <edmoore> oh it's nothing to do with you rjharrison!
[11:05] <edmoore> that's what they were saying - just the fickle way the media works
[11:07] <rjharrison> jagb, basically you use the fantastic CUSF predictor to make sure that it does land in the uk
[11:07] <edmoore> so fantastic that it has actually crashed again. hang on let me fix it.
[11:08] <earthshine> lol
[11:08] <SpeedEvil> /.'d?
[11:08] <edmoore> no, just not de-mutexing after it runs
[11:08] <edmoore> not sure why
[11:09] <edmoore> ok it should work again now
[11:09] <edmoore> cuspaceflight.co.uk/predict
[11:09] <Randomskk> would it demutex after an error? someone was playing with crossing the date line last night and it errored a lot at that
[11:09] <edmoore> perhaps, although it's always been fine before.
[11:09] <Randomskk> oh well
[11:09] <edmoore> sort of want rjw to port his improvements back to the primary predictor
[11:09] <edmoore> that one was always flakey
[11:09] <Randomskk> yea
[11:10] <Randomskk> all the more reason to get the sexy new code running
[11:10] <edmoore> yeah
[11:10] <edmoore> right, coffee and cake time
[11:10] <Randomskk> have fun
[11:11] <MoALTz> what happens if your payload lands on some restricted property?
[11:11] <Randomskk> you get your tresspassin' boots o-- uh, you ask nicely for it back
[11:12] <jagb> Thanks Rob, i'll look forward to reading your site when the furore dies down
[11:13] <rjharrison> Alot of the guys on here know far more about high altitude balooning than I do
[11:14] <rjharrison> jagb, have a look at ukhas.org.uk
[11:20] <jagb> thanks Rob
[11:20] <rjharrison> Randomskk, I think it has been almost everywhere in the news
[11:21] <earthshine> Weird how things can go viral like that
[11:21] <rjharrison> My sister in NZ saw it on tv over breakfast
[11:21] <rjharrison> earthshine, yep
[11:21] <Randomskk> looks like it
[11:21] <earthshine> What sparked it anyway Robert? These images are 2 years old.
[11:22] <rjharrison> I have tried to push ukhas and that it's not just my work but alot of effort from everyone in the HAB community
[11:22] <rjharrison> A local newspaper ran the article and it got syndicated in to the national press and then went global
[11:23] <earthshine> cool
[11:25] <rjharrison> Like you say out of date and this has all been in the media several times befor. Ie it not new
[11:25] <rjharrison> <is>
[11:25] <earthshine> Yeah - kinda weird
[11:25] <earthshine> But that's journalisim for ya!
[11:25] <Randomskk> nevertheless very cool
[11:25] <earthshine> Yeah it's great PR for the hobby
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[11:26] <rjharrison> Yep but feeling a bit guilty for getting alot of attention for a collbarative project
[11:26] <russss> I listed all the articles on the front page of the UKHAS wiki
[11:26] <russss> maybe we need a press page
[11:26] <Randomskk> hehe
[11:26] <earthshine> Rob why were you wearing a suit in the video?
[11:27] <rjharrison> With out the help of edmoore, jcoxon, rocketboy, natrium and many others I wouldn't have got this far
[11:27] <earthshine> You should have had on a Star Trek T-Shirt or something like that
[11:27] <rjharrison> Cos I just got home from work
[11:27] <Randomskk> or a lab coat!
[11:27] <Randomskk> this is why you need emergency lab coats
[11:27] <rjharrison> Yep they wanted that
[11:27] <rjharrison> lol
[11:27] <earthshine> yeah! A lab coat with a neat row of pens in the pocket and a clip-board
[11:27] <Randomskk> "oh, shit! international media at my house! time for..."
[11:27] <Randomskk> "emergency labcoat!"
[11:27] <russss> if you've got any more interviews I'll send you a free Hackspace branded lab coat
[11:29] <Randomskk> you have hackspace branded labcoats?
[11:29] <russss> we've got them order
[11:29] <russss> they are like £15 each, bargain!
[11:30] <earthshine> I've ordered mine :)
[11:30] <Randomskk> hackspaces are one the main reasons I'd like to live in a city really I think
[11:31] <Randomskk> there's not really much time during term time at cambridge to do stuff at a hackspace while also doing all the other stuff I do
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[11:31] <Randomskk> and there's nothing within miles of where I live otherwise
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[11:31] <earthshine> bah it's onyl an hour to London
[11:31] <rjharrison> russss, Well NBC are coming to the house for the day tomorrow to do someing for America Today
[11:32] <earthshine> So wear a labcoat !
[11:32] <Randomskk> not even
[11:32] <russss> hah, that's a bit too soon
[11:32] <russss> America Day, eh
[11:32] <earthshine> The yanks will love that. A typical mad scientist.
[11:32] <Randomskk> earthshine: I forget, where do you live? someone here is in weybridge too
[11:32] <joshskidmore> just watched the story on the today show - AWESOME!
[11:32] <earthshine> Get yourself a big crazy Einstein type wig and laarge rimmed glasses.
[11:32] <Randomskk> see if you can grow a beard too
[11:32] <earthshine> I live in orpington, Kent.
[11:32] <Randomskk> of course you do, sorry
[11:32] <Randomskk> forgot you were also mikemc
[11:32] <Randomskk> half an hour to london from here :P
[11:33] <earthshine> There you go then - no excuse to attend Hackspace on the Wednesday meets at least ;)
[11:33] <earthshine> You should come up for the hacker challange next month
[11:34] <Randomskk> what's that?
[11:34] <earthshine> They are running a challange. Like Scrapheap Challange. You get a box of bits and a task to make something and off you go.
[11:34] <SpeedEvil> two hackers enter, one hacker leaves.
[11:34] <Randomskk> ooh
[11:35] <Randomskk> that is pretty tempting really
[11:35] <russss> I dunno if that's actually going to happen next month, it's been a bit quiet on the venues front
[11:35] <earthshine> and I have suggested... A box of bits, an NO task - just a time limit and see who makes the coolest gadget
[11:35] <Randomskk> that would also be awesome
[11:35] <russss> but it will happen at some point
[11:35] <earthshine> Well that will be a shame. Especially as my company has sponsored the prizes!! ;)
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[11:49] <ProjectCirrus> morning all
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[11:56] <earthshine> morning
[11:56] <russss> barely ;)
[11:57] <earthshine> yeah - just got that in in time
[11:58] <grumbel_> Out of curiosity, how much weight can one of those latex weather baloons carry?
[11:58] <Randomskk> couple of kilograms is usually what you'd aim for
[11:58] <Randomskk> tops
[11:58] <Randomskk> well as in "the maximum you might aim for"
[11:59] <ProjectCirrus> all a compromise between max altitude and ascent rate
[11:59] <Randomskk> http://www.srcf.ucam.org/~cuspaceflight/calc/ have a play
[11:59] <Randomskk> select the biggest balloon, put in some heavy mass and see what kind of altitudes you can make
[11:59] <Randomskk> actually you can't do that, the calculator stops anything over 5kg as being silly
[11:59] <Randomskk> but you can do 5kg!
[12:00] <Randomskk> or you can change the javascript to get rid of that limit
[12:00] <earthshine> What is a typical payload weight?
[12:00] <grumbel_> nice, thanks
[12:00] <Randomskk> depending on what's in it, anything from say 300g to like 3kg
[12:00] <Randomskk> e.g. that ferret tracker thing we stuck on was about 300g, bit less, but didn't really do anything
[12:01] <earthshine> I think mine will be slightly heavy as I have 2 cameras plus a 12v li-ion battery in it
[12:01] <Randomskk> scott's payload with its video camera, still camera, gsm module, nice box and batteries was 2kgish
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[12:01] <earthshine> I am guessing mine will be 2.5-3 kg then
[12:01] <Randomskk> be sure to weigh it though :P
[12:01] <earthshine> oh yes
[12:01] <Randomskk> potentially, though a 12v li-ion needn't be that heavy
[12:01] <Randomskk> earthshine: you remember what happened last time :P
[12:02] <earthshine> I will bring along a weight on launch day too - exact same weight as the payload
[12:02] <Randomskk> excellent idea
[12:02] <grumbel_> what for?
[12:02] <Randomskk> grumbel_: we use it to work out how much helium to put in
[12:02] <Randomskk> earthshine: actually no
[12:02] <Randomskk> check that calc
[12:02] <Randomskk> bring along a weight same as the neck lift
[12:03] <earthshine> ?
[12:03] <Randomskk> you want some net upwards force after all
[12:03] <earthshine> Neck lift ?
[12:03] <Randomskk> http://cuspaceflight.co.uk/calc
[12:03] <Randomskk> neck lift being the total lift at the neck of the balloon while filling
[12:03] <Randomskk> so it will be bigger than payload weight
[12:03] <Randomskk> it includes free lift
[12:03] <Randomskk> we want that force to be balanced by the ballast mass while filling, so we fill until it just floats
[12:04] <Randomskk> then when the payload is attached it'l float + have free lift
[12:04] <Randomskk> so goes up
[12:04] <earthshine> ok so the neck lift is MORE than the payload weight
[12:04] <Randomskk> yea
[12:04] <earthshine> 4590g for a 3000g payload - i see
[12:04] <Randomskk> earthshine: depends on the other parameters
[12:05] <Randomskk> burst altitude or ascent rate
[12:05] <Randomskk> the free lift is a function of the amount of helium, which also determines what altitude it will burst at (when that much helium expands past that balloon's burst diameter) and ascent rate (based on payload mass and mass of displaced air)
[12:06] <earthshine> OK I see
[12:07] <Randomskk> so basically type in payload mass, balloon type and desired burst altitude or ascent rate, then it'l say the neck lift
[12:07] <Randomskk> to be honest
[12:07] <Randomskk> and you want to balance that
[12:07] <Randomskk> I think we should get some sandbags and a scale
[12:07] <Randomskk> and just keep that with the launch kit
[12:07] <earthshine> Yeah i'm surprised you didn't have that actually
[12:07] <edmoore> ProjectCirrus: yo
[12:08] <ProjectCirrus> hi
[12:08] <edmoore> pm
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[12:16] <earthshine> Crikes! The battery pack weighs 525g on it's own
[12:16] <Randomskk> it's probably one of the heaviest things in there though
[12:16] <earthshine> yeah
[12:16] <earthshine> the cameras weigh not a lot
[12:16] <earthshine> I'll have a small science payload on teh side but that will be less than 200g
[12:17] <juxta_> hey earthshine
[12:17] <earthshine> hey Terry
[12:17] <juxta_> how's things?"
[12:17] <earthshine> Pretty good thanks - and you ?
[12:17] <juxta_> I saw your pages on the wiki today :)
[12:17] <juxta_> not too bad
[12:17] <juxta_> just at the gp in melbourne
[12:17] <earthshine> yeah i've made some progress this week - aiming to get things doen ASAP for an end of April launch (weather permitting)
[12:17] <earthshine> Cool
[12:18] <juxta_> I was going to ask about the battery - why not individual lithium AA cells?
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[12:19] <earthshine> I'd rather have a rechargeable battery that can be reused rather than forking out about £10 per flight on batteries
[12:19] <earthshine> plus it means the transmitter will send signals for many days or even weeks if it gets lost
[12:19] <juxta_> fair enough
[12:19] <juxta_> ah yeah
[12:19] <juxta_> how many amp hours is it?
[12:20] <earthshine> also, the excess voltage generates some nice heat from the voltage regulators keepoing the internal payload toasty
[12:20] <earthshine> it's a 9800aH battery
[12:20] <juxta_> haha, thats quite large :)
[12:20] <earthshine> yeah
[12:20] <Randomskk> what
[12:20] <Randomskk> 9800Ah?
[12:20] <Randomskk> do you mean mAh? :P
[12:21] <earthshine> lol
[12:21] <Randomskk> that or I want one of those batteries
[12:21] <juxta_> i suspect so ;p
[12:21] <earthshine> oh yeah
[12:21] <Randomskk> 500g for 10kAh? yes please :P
[12:21] <earthshine> 9800Ah would be like 25 car batteries
[12:21] <Randomskk> haha yea
[12:21] <earthshine> you'd need a blimp to lift that
[12:21] <Randomskk> quite
[12:21] <earthshine> http://ukhas.org.uk/projects:earthshine:battery
[12:22] <juxta_> weight is the only downside
[12:23] <Randomskk> looks nice though
[12:23] <Randomskk> I like the switch and led builtin
[12:23] <Randomskk> also it is super
[12:23] <juxta_> haha
[12:23] <juxta_> super indeed
[12:23] <earthshine> yeah - but i guess it just means a bigger ballon and more helium
[12:23] <earthshine> oh yes it is very super
[12:23] <Randomskk> true, you end up paying more in helium
[12:24] <grumbel_> Whats a rough price tag for a launch?
[12:24] <grumbel_> eg. excluding the recoverable parts
[12:24] <earthshine> About £25,000
[12:24] <juxta_> haha
[12:25] <juxta_> grumbel_: where do you live?
[12:25] <earthshine> lol
[12:25] <juxta_> Germany?
[12:25] <grumbel_> juxta_, Bavaria, Germany
[12:25] <grumbel_> yes
[12:25] <juxta_> ooh Bavaria
[12:25] <earthshine> I guess around £500 if you include the minimum radio gear
[12:25] <grumbel_> 'Im just trying to get approximate ideas about this
[12:26] <juxta_> grumbel_: for the consumables involved in a single launch, maybe 100-200 USD i suppose
[12:26] <juxta_> helium, balloon, stuff like that
[12:26] <juxta_> for your supporting gear (radios etc) a fair bit more, but you can do it on the cheap if you look aroumnd
[12:26] <juxta_> and maybe 100-200 for the payload itself
[12:27] <grumbel_> camera, GPS etc?
[12:27] <earthshine> plus a bit more for test gear and bits you might destory in testing etc.
[12:27] <grumbel_> so 1k would already be enough to start?
[12:28] <Randomskk> 1k should cover everything for a reasonable mission
[12:28] <earthshine> indeed easily
[12:28] <Randomskk> assuming nothing is much more expensive over there
[12:28] <Randomskk> 1k usd, that is
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[12:28] <earthshine> £675
[12:28] <earthshine> Should just about do it
[12:28] <grumbel_> around 750 Euros
[12:28] <grumbel_> hm thanks
[12:29] <Randomskk> £675 is about ¬750?
[12:29] <grumbel_> I expected much more
[12:29] <juxta_> grumbel_: yes, shouldnt be a problem
[12:29] <Randomskk> oh phew
[12:29] <Randomskk> wait
[12:29] <Randomskk> it is
[12:29] <Randomskk> yea
[12:29] <Randomskk> not too bad
[12:29] <juxta_> if you look around for a well priced radio, and make things youself, you'll do it for less I imagine
[12:29] Action: Randomskk went to germany on a whim, got to the airport, found out euros were 1.01 to the pound
[12:29] <grumbel_> yes, probably a matter of knowledge, amount of time you can invest etc.
[12:30] <juxta_> radio is the big one really usually, if you have ham radio festivals near you, or can wait around on ebay for a while, you canget something suitable cheaply
[12:30] <juxta_> I picked up a backup receiever for about 100USD
[12:30] <juxta_> :)
[12:34] <earthshine> £675 is exactly 748.54 Euros as of today
[12:35] <earthshine> I have this on order as my backup beacon - http://www.amazon.co.uk/gp/product/B003CIFGCO/ref=oss_product
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[13:09] <Daviey> earthshine: the reason the thread is messed up, someone replied to the thread but changed the topic
[13:12] <Daviey> earthshine: Have you costed what this launch will probably cost?
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[13:21] <earthshine> What my launch will cost?
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[14:29] <wolfe_> Just saw the article on MSNBC, incredible job!
[14:36] <rjharrison> wolfe_, thanks
[14:39] <russss> heh
[14:41] <russss> http://news.google.co.uk/news/story?cf=all&ned=uk&hl=en&ncl=djLQaaP93bGYFTMjPWuSnKAJ0N3_M
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[14:42] <wolfe_> I hope this seriously inspires youth, what a perfect project for the aspiring scientist or techie!
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[14:58] <SpeedEvil> up to several kilos
[14:58] <SpeedEvil> up to a few kg
[14:58] <SpeedEvil> oops
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[15:19] <rjharrison> hi edmoore
[15:23] <X-Scale> hi rjharrison. Congratulations for this amazing high altitude flight. I'm amazed with the quality of pictures. They are breathtaking.
[15:24] <rjharrison> Alot of people on here have dome some amazing launches
[15:25] <rjharrison> but thanks the pics are fun
[15:25] <X-Scale> Makes me remember Auguste Piccard high altitude experiments back in the 50's.
[15:27] <edmoore> rjharrison: hi
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[15:29] <rjharrison> hi ed
[15:30] <rjharrison> You still there
[15:30] <rjharrison> edmoore, even
[15:30] <edmoore> rjharrison: yes
[15:30] <rjharrison> Getting off the band waggon isn't too easy
[15:31] <rjharrison> Hopefully getting to the end of calls
[15:31] <edmoore> thankfully I had coursework to hand in come what may so could just say no no no
[15:31] <rjharrison> Bit freaky how far this a gone
[15:31] <edmoore> although there was lots of stuff bourne of it over the subsequent weeks, like the sun 40th thing
[15:32] <edmoore> no calls from oprah yet though?
[15:32] <PC-got-to-work> she sent you an e-mail
[15:32] <rjharrison> no!
[15:32] <PC-got-to-work> you just didn't get it :)
[15:33] <edmoore> lol
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[15:35] <PC-got-to-work> does ukhas have a problem with us using photos from their site on ours? we have several links to UKHAS for advice
[15:35] <PC-got-to-work> we just don't have phots of inflated balloons yet!
[15:36] <russss> you're probably best asking whoever owns the photo
[15:36] <russss> although I can't imagine it would be a problem
[15:40] <edmoore> PC-got-to-work: credit the owners and i'm sure it'll be fine
[15:44] <rjharrison> edmoore, PM
[15:44] <PC-got-to-work> yeah, i'm just after checking but it actually looks like the photos have been taken from elsewhere.... no UKHAS infingement afterall
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[15:50] <edmoore_> sorry rjharrison i got cutoff and didn't get reply (pm)
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[15:52] <edmoore__> test
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[16:06] <earthshine> PC-got-to-work: What is your site URL please?
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[16:08] <PC-got-to-work> http://projectcirrus.wordpress.com/
[16:08] <PC-got-to-work> sorry for delay, i was elsewhere
[16:08] <earthshine> Oh is that you projectCirrus? You've changed your Nick ?
[16:08] <PC-got-to-work> it's still very much under construction.... about 40% of the way there i reckon
[16:09] <PC-got-to-work> yeah
[16:09] <PC-got-to-work> just plain old me again
[16:09] <earthshine> You should make a Project Page on the UKHAS website- http://ukhas.org.uk/frontpage:projects
[16:10] <PC-got-to-work> I wonder if a link would be possible, it might be better
[16:11] <earthshine> That GPS module you are using - does it work over the 60,000 feet ?
[16:11] <earthshine> Yeah just create a Project Page and put a link on it and nothing else
[16:11] <PC-got-to-work> yes it does
[16:11] <PC-got-to-work> the pda one doesn't though
[16:12] <PC-got-to-work> the garmin gps 35 only cost us 15 quid on ebay
[16:13] <PC-got-to-work> ... how do i log into the wiki though?
[16:13] <earthshine> just click the login bit
[16:13] <PC-got-to-work> do i not need a password?
[16:14] <PC-got-to-work> or can i just create a new account
[16:14] <earthshine> Click Register
[16:14] <PC-got-to-work> lol sweet, so any tom dick or harry can get onto the wiki... i suppose its all in the name
[16:16] <earthshine> yep - you just can't edit anyone elses stuff
[16:16] <PC-got-to-work> ahh
[16:19] <PC-got-to-work> will get that done some time, got to work now
[16:23] <earthshine> Are you sure that GPS works at that altitude?
[16:23] <earthshine> The tech specs say 18,000m max
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[16:23] <earthshine> Which is 60,000 feet
[16:24] <PC-got-to-work> ??? lol i need to check that...... un monent svp
[16:25] <earthshine> Also why not use a Canon camera that can use the CHDK? That way there is no need to take the camera apart, remotely control it, etc. ?
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[16:26] <PC-got-to-work> wheres the fun in that
[16:26] <PC-got-to-work> we had that camera already
[16:26] <PC-got-to-work> and its screen had smashed
[16:27] <earthshine> Ahh OK
[16:27] <PC-got-to-work> http://moo.pl/~tygrys/balloon/ the gps does work at high altitude
[16:27] <PC-got-to-work> i know a lot of balloon groups have used gps 35 with no problems
[16:27] <earthshine> OK Cool - the specs. say 18,000metres - but if it works above then cool
[16:28] <earthshine> Quite often the specs. are not quite true
[16:28] <earthshine> rjharrison: ping
[16:29] <rjharrison> hi earthshine
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[16:31] <earthshine> hi
[16:31] <earthshine> Just curious as to the small round window on yhour payload pics
[16:31] <rjharrison> UV filter
[16:31] <earthshine> Why did you decide to do it that way rather than have the lens in open air?
[16:31] <rjharrison> Can get frosty
[16:31] <earthshine> The filter can get fristy?
[16:31] <earthshine> *frosty
[16:31] <rjharrison> hehe yep
[16:31] <edmoore> frisky?
[16:32] <earthshine> Yeah i'd like to put a UV filter on mine (Canon A560) but i'm not sure I can get one to fit
[16:32] <earthshine> Some websites say they sell them but I am dubious about their authenticity
[16:33] <PC-got-to-work> sorry earthshine but could you give me a link to those specs where it says about max altitude please... i cant find them in mine
[16:34] <edmoore> PC-got-to-work: what gps are you using?
[16:34] <earthshine> http://www8.garmin.com/manuals/GPS35LPSeries_TechnicalSpecification.pdf
[16:34] <earthshine> That one - but is has been used by some Polish guys before
[16:35] <PC-got-to-work> ok, what page?
[16:36] <ms7821> :|
[16:36] <earthshine> 15
[16:36] <PC-got-to-work> thansk
[16:36] <earthshine> http://www8.garmin.com/manuals/GPS35LPSeries_TechnicalSpecification.pdf
[16:37] <earthshine> oops
[16:37] <earthshine> 4.1.3
[16:37] <earthshine> Line 2
[16:39] <PC-got-to-work> ok, thats initialisation data
[16:39] <PC-got-to-work> you telling it what altitude its at to start with
[16:39] <PC-got-to-work> i hope it can actually sense higher
[16:40] <PC-got-to-work> in the NMEA transmitted sentence area it can send higher altitudes
[16:40] <PC-got-to-work> apparently :)
[16:41] <PC-got-to-work> up to 99999.9m
[16:41] <earthshine> ok well hope it works
[16:41] <earthshine> What is your flight computer ?
[16:41] <PC-got-to-work> well its worked for others
[16:41] <PC-got-to-work> were using a PICAXE18X
[16:42] <PC-got-to-work> it started off as a simple morse system
[16:42] <PC-got-to-work> which picaxe is born for.... but then we were shown the benefits of 50 baud rtty
[16:42] <earthshine> OK so all you need to do really is get your computer to reset the GPS if it hasn't detected any valid strings for say 5 mins or something
[16:42] <PC-got-to-work> and things got akward
[16:43] <earthshine> So if it does go tits up above 18KM at least it will start working again once it drops below 18KM
[16:43] <PC-got-to-work> true.......unfortunately i have to go here.... thanks for the panic! :)
[16:43] <earthshine> :D
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[16:46] <haptiK> hi
[16:46] <earthshine> hi
[16:46] <edmoore> a lot og chipsets (eg sirfIII) often just start working again of their own accord when they drop below their cutoff altitude, without needing to be reset
[16:47] <edmoore> but it seems to be very manufacturer specific so I guess resetting is sensible
[16:47] <earthshine> Yeah - i'm going to put a routine in my code to reset mine just incase - even though it does work above 18Km
[16:48] <edmoore> logging the nmea would be very useful actually
[16:48] <edmoore> so we can see exactly what a 'fail' looks like
[16:48] <edmoore> we don't have any such data as we've always flown known-good gps's
[16:49] <earthshine> yeah - maybe put a GPS module plus datalogger in a payload one flight - a GPS module that is known NOT to work above 18KM
[16:49] <edmoore> a sirfIII would be helpful too
[16:49] <edmoore> they stop at 24km
[16:49] <edmoore> for a different reason
[16:50] <earthshine> Ed: is it legal to drop a glider from altitude?
[16:51] <edmoore> lol
[16:51] <edmoore> lol because it'd be an awesome thing to do and the law is greyish
[16:51] <earthshine> Not necessarily a controlled one - perhaps just a small kiddies one ?
[16:51] <edmoore> so we've wondered a lot. i don't really know
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[16:51] <edmoore> i mean it's probably not strictly legal but then i think it's legal enough to be worth doing
[16:52] <edmoore> it's unpowered, it's just going to fall like anything else
[16:52] <edmoore> but this is just a slightly more controlled fall
[16:52] <earthshine> I also thought about dropping about 100 ping pong balls with a message on them to see where they end up
[16:52] <edmoore> i pledge a bottle of fizz to anyone who gets a glider to land at some pre-determined site from an altitude of above 20km
[16:52] <edmoore> earthshine: have you seen jp aerospace?
[16:52] <DaveyC> hey everyone :)
[16:52] <edmoore> they do a similar thing with their 'pong-sats'
[16:53] <edmoore> hi DaveyC
[16:53] <earthshine> I bet it can be done
[16:53] <earthshine> Yeah I saw that
[16:53] <edmoore> oh for sure
[16:53] <edmoore> yeah it should be done asap. hence my offer of an award
[16:53] <earthshine> but it's not legal I don't think
[16:53] <edmoore> i might also enter as soon as degree project finishes
[16:53] <earthshine> It would class as a UAV
[16:53] <edmoore> i think it counts as a uav despite being unpowered, yeah
[16:54] <edmoore> but i think no one would mind if a polystyrene glider landed in their back garden
[16:55] <earthshine> I wondr if you could put 100 ping pong balls INSIDE the ballon? It would make the release mechanism really easy
[16:55] <edmoore> ha, nice idea
[16:55] <edmoore> i rather like that. go for it
[16:55] <earthshine> I wonder what 100 ping pong balls weigh
[16:56] <edmoore> 2.7gr each
[16:56] <edmoore> says the goog
[16:56] <earthshine> OK so about 50 then wouldn't add a lot of weight
[16:56] <edmoore> yeah
[16:56] <edmoore> this is a cool idea
[16:57] <earthshine> Do you think they could be pushed into the neck of the abllon without damaging it ?
[16:57] <earthshine> *balloon
[16:57] <edmoore> i don't actually know the precise dimater of the balloon neck
[16:58] <earthshine> or even try and obtain smaller (non reg) size ping pong balls
[16:58] <edmoore> i mean it'd certainly be stretchy enough, but it might not be wider than a ping pong diameter in a relaxed state, so it might be a bit laborious to get them in
[16:58] <earthshine> hmm this needs some research
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[16:58] <edmoore> def
[16:58] <earthshine> OK got to pop out for 10 mins - catch you later
[16:59] <edmoore> see you
[17:00] <haptiK> how can i get into this?
[17:00] <haptiK> sorry that question was retarded.
[17:01] <haptiK> could someone suggest a good place to get started building my own high altitude devices?
[17:01] <edmoore> haptiK: firstly, have a read of the beginners guide on the ukhas webpage
[17:01] <edmoore> do you mind if I ask you where you are based?
[17:01] <edmoore> this afects what radios you can use and so on
[17:01] <haptiK> North London
[17:01] <haptiK> N15
[17:01] <edmoore> oh perfeck
[17:02] <haptiK> but also i would be interested in doing this at my fathers place in north wales
[17:02] <haptiK> but never mind that for now
[17:02] <edmoore> so most of the launches in the UK happen from a launch site about 200 mters from where i am now - the playing fields on churchill college, cambridge
[17:02] <haptiK> ok
[17:02] <edmoore> so i would recommend coming along to the next launch. not sure when that is rght now, but there are usually one or two a month
[17:03] <edmoore> secondly, do you have any experience with radios (like amateur radio)?
[17:03] <haptiK> is there a meetup.com for it?
[17:03] <haptiK> there should be, that would be helpful.
[17:03] <edmoore> no, launches only really can be confirmed 48-36 hours ahead
[17:03] <edmoore> and people just turn up. we're pre web 2.0 on this front
[17:04] <haptiK> ij
[17:04] <haptiK> ok rather
[17:04] <edmoore> so what a lot of people find helpful, before building their own payload, is to try and listen and decode someone else's flight telemetry
[17:05] <edmoore> that way you can get a feel for a flight, and test out a major and crucial aspect of your own flights - a ground station
[17:06] <edmoore> if you see a launch and decode telemetry, you'll have a complete idea about how a balloon launch goes, and then you can build a payload from a much stronger position.
[17:06] <haptiK> ok
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[17:06] <haptiK> thanks for the information
[17:06] <haptiK> is it expensive?
[17:07] <edmoore> it doesn't need to be - what sort of thing do you want to do?
[17:07] <haptiK> i haven't thought about it yet
[17:07] <edmoore> it can just be camera in a box for pretty pictures, or it can be a fully fledged research experiment
[17:07] <haptiK> how do i recover the balloon? doesn't to go miles
[17:07] <haptiK> edmoore: well yah i would be interested in sending up some arduino's etc...
[17:08] <edmoore> i am not dissing pretty pictures btw, seeing the pics can be the most fun thing
[17:08] <edmoore> haptiK: yes, it often does go miles
[17:08] <edmoore> you drive out to collect it
[17:08] <haptiK> ah, that would require owning a vehicle
[17:08] <haptiK> haha
[17:08] <edmoore> sure, an arduino has enough oomph to do the basics of a flight computer.
[17:08] <edmoore> ah, that could make it trickier
[17:08] <haptiK> i'll do the research first
[17:08] <haptiK> then worry about building it
[17:09] <haptiK> maybe by then i'll have a cheap run around
[17:09] <edmoore> so all a flight computer really needs to do, if you want to get it back, is talk to a gps over serial and then get that data to a radio somehow
[17:09] <edmoore> often by bit-banging an amateur radio protocol into one of the legally usable radios
[17:09] <haptiK> interesting
[17:10] <edmoore> so an arduino is quite happy doing that
[17:10] <haptiK> how far has one tracked a balloon?
[17:10] <edmoore> 400km
[17:10] <haptiK> holy cow
[17:10] <edmoore> landed in LeMans
[17:10] <haptiK> wow awesome
[17:11] <edmoore> but we are legally only allowed low power radios - 10mW on 434MHz is what 99.9% of uk launches use
[17:11] <haptiK> that sounds like so much fun
[17:11] <edmoore> so we have to really slow the baud rate down - 50 baud is typical
[17:11] <edmoore> so the telemetry comes in looking like one of those typed messages in cold war films
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[17:11] <edmoore> the protocol we use is called radio teletype (RTTY) infact
[17:13] <edmoore> haptiK: how did you find out about amateur ballooning?
[17:13] <X-Scale> haha...you use the good old RTTY ! I hadn't heard it since the late 80's :)
[17:13] <X-Scale> Interesting
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[17:13] <edmoore> it works, and every ham has software to decode it, so we stick with it. it's great :)
[17:13] <DaveyC> hi ed. can I ask.. why such low power? is this due to licensing, and would having a licence allow for a higher power usage?
[17:14] Action: DaveyC uses MultiPSK for rtty :)
[17:14] <haptiK> edmoore: i saw a news article: http://www.timesonline.co.uk/tol/news/science/space/article7074839.ece
[17:14] <haptiK> edmoore: and have been doing further research
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[17:15] <edmoore> haptiK: ah. yes that was odd. that actually happened in 2008 and is typical of the 40 or so flights we've done in the last 4 years. funny how the media works!
[17:15] <sbasuita> DaveyC, 10mW is the max power on the unlicensed parts of 70cm
[17:15] <haptiK> i thought to myself: "that's pretty cool, if he can do it why can't i?"
[17:15] <DaveyC> thx Ed :)
[17:15] <edmoore> DaveyC: as sbasuita says, and also most of us are licensed, but that doesn't help as your license does not cover transmission from the air
[17:16] <sbasuita> In fact if our UK licenses did permit our callsigns to go airbourne, we'd probably tap into the existing APRS infrastructure like the Ameicans do ;)
[17:16] <edmoore> indeed
[17:17] <DaveyC> right i see. I'm acutally planning on taking my licence exam shortly. was just wondering what the deal would be
[17:17] <sbasuita> DaveyC, uk foundation?
[17:17] <DaveyC> yes
[17:17] <sbasuita> DaveyC, good luck - though i'm sure you won't find it too challenging :)
[17:18] <edmoore> DaveyC: it's a real pain. but that said, we can now do it reliably on 10mW, it works well and is proven, and if we do every get an allowance for more at some point in the future, we'll really appreciate it
[17:18] <edmoore> whereas some of the guys in the states would think you couldn't ever fly a hab mission on less than 1W
[17:18] <DaveyC> ty :) i've been getting some practise in on hamsphere, and the electronics portion, well, it's always been my sort of thing :)
[17:18] <edmoore> perfect!
[17:19] <edmoore> getting the exam is a very worthwhile thing
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[17:20] <sbasuita> DaveyC, have you tried the tests on http://hamtests.co.uk ?
[17:20] <edmoore> even if the balloons don't transmit on licensed powers/bands, the amateur license is still very worthwhile for communication between chase cars, launch teams, and the general ham world is very applicable in terms of electronics and techniques
[17:20] <DaveyC> recently received my "foundation license now" book, so i've had a goodly read through that. Used to work on CB quite a lot when i was a bit younger
[17:20] <DaveyC> thanks sbasuita, i will take a look.. i've taken so many online tests, it's hard to remember where i've been :)
[17:21] <DaveyC> agreed ed :)
[17:21] <sbasuita> DaveyC, ah right. I found that one really useful.
[17:22] <haptiK> licence exam for what licence?
[17:23] <DaveyC> @haptiK, foundation ham operator licence :)
[17:24] <haptiK> thanks
[17:24] <haptiK> is it possible to send real time video down?
[17:24] <sbasuita> haptiK, yes
[17:24] <sbasuita> haptiK, http://en.wikipedia.org/wiki/SSTV
[17:25] <haptiK> thanks
[17:25] <sbasuita> actually
[17:25] <rjharrison> later
[17:25] <rjharrison> chat later
[17:25] <haptiK> rjharrison: hi
[17:25] <sbasuita> that's not fast enough for real time feeds
[17:25] <rjharrison> Hi hab
[17:25] <rjharrison> Hi haptiK
[17:25] <sbasuita> but it's been done
[17:26] <rjharrison> I'v got to dash for 5
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[17:26] <edmoore> sstv has been done but it took about 3 minutes to get a 320 x 240 image down
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[17:26] <fictive> your project, good sir, wins
[17:27] <DaveyC> and i'm guessing that digital sstv would take just as long but with more loss?
[17:27] <edmoore> there are quite a few sirs on this channel.
[17:27] <edmoore> less loss
[17:27] <edmoore> being digital
[17:28] <DaveyC> ahh okay.. i was thinking of the whole satellite tv setup. with being digital, a little bit of rain etc and *poof* it's gone
[17:28] <DaveyC> but i still have a bit to learn by the looks of it :)
[17:28] <edmoore> but you have lots of variables in this equation so it's possible to get whatever picture you want at whatever quality, in theory. just need to weight up what you want to do
[17:28] <edmoore> ah, that's a function of frequencies aswell
[17:29] <edmoore> 434mhz is much lower than sat tv
[17:29] <fictive> s/sir/sirs then if you like ;)
[17:30] <jiffe1> rjharrison: just saw the abcnews video of one of your launches
[17:30] <edmoore> as we've been saying, it's rather fickle of the media that it's just come to attention now (well actually, it comes to its attention every so often) but we've been doing it for several years, and it's not new.
[17:31] <DaveyC> i knew it had been done, i just didnt know there was a irc channel for it until today :) hehe
[17:32] <edmoore> yeah the channel is busy today!
[17:32] Action: DaveyC has added this channel to his autojoin list
[17:33] <haptiK> so does everyone use a <standard> weather balloon.
[17:33] <edmoore> yes
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[17:33] <edmoore> tey come in different sizes
[17:34] <edmoore> they are described by the mass of their latex
[17:34] <haptiK> like this one seen on the wiki? http://www.flickr.com/photos/jcoxon77/3730471742/
[17:34] <edmoore> 1 or 1.5kg being typical
[17:34] <haptiK> oh right ok
[17:34] <haptiK> mythbusters comes to mind all of a sudden
[17:34] <edmoore> haptiK: yes, just like that
[17:34] <edmoore> that is infact me holding it
[17:34] <haptiK> hah, cool.
[17:35] <haptiK> "Harmless Science Experiement, if found please cal..." cute.
[17:35] <edmoore> so there are other types of balloon tech, but they are a lot harder to work with.
[17:37] <edmoore> those balloons cost about £50
[17:37] <haptiK> wow, definatly want to retrieve it then!
[17:37] <edmoore> oh, no
[17:37] <DaveyC> i doubt you can retreive it.
[17:37] <DaveyC> it will burst
[17:37] <edmoore> exactly
[17:37] <haptiK> oh
[17:38] <haptiK> so they are one use
[17:38] <edmoore> yes
[17:38] <edmoore> that's what usually ends the flight - the balloon bursting
[17:38] <edmoore> the outside pressure drops as it ascends, so the balloon expands
[17:38] <edmoore> until it reaches its burst diameter
[17:38] <edmoore> then pop
[17:38] <edmoore> and down you come
[17:39] <haptiK> ahh
[17:39] <edmoore> haptiK: http://www.vimeo.com/1626665
[17:39] <haptiK> so you parachute the experiment down to earth and retireve that, i see.
[17:39] <edmoore> this is from one of our flights
[17:39] <edmoore> the video is from a camera looking out to the horizon, the balloon is above
[17:39] <edmoore> and the balloon bursts as the clip is taken
[17:39] <edmoore> you can see it shreds into lots of little pieces
[17:40] <edmoore> this is deliberate so you don't get a single lump tangling with your chute
[17:43] <edmoore> the price of helium is approximately the same again
[17:43] <edmoore> so you're looking at about £100 per-launch cost
[17:43] <edmoore> and perhaps £100 for a basic arduino, gps, radio and camera system (if you buy carefully)
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[17:50] <haptiK> yah
[17:50] <haptiK> interesting
[17:50] <haptiK> how often do you launch?
[17:50] <haptiK> im sure you can do test launches on a smaller scale to test the setup
[17:50] <haptiK> can you tether these test launches?
[17:50] <edmoore> so you've probably gleaned that ukhas is a bunch of different groups
[17:51] <edmoore> i'm specifically part of CU Spaceflight
[17:51] <haptiK> i havent had a change to look at the site in detail im at work
[17:51] <haptiK> chance rather
[17:51] <edmoore> we've done about twenty launches in the last threeish years. but our launch site gets used a lot by other people too
[17:51] <edmoore> tethered launches can be a pain if there's anything other than the slightest breath of wind
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[17:52] <X-Scale> edmoore: has any of them landed in the ocean ?
[17:52] <edmoore> yep
[17:52] <X-Scale> :/
[17:52] <haptiK> wow yah just watched the vide
[17:52] <haptiK> thats great
[17:52] <edmoore> the north sea is only a few tens of miles away
[17:52] <haptiK> video rather
[17:52] <edmoore> we have written a piece of software that predicts the balloon flight path
[17:52] <edmoore> cuspaceflight.co.uk/predict
[17:53] <edmoore> and from about 36 hours before launch, it can predict the landing site as accurately as within about 2km over a flight of 100km
[17:53] <edmoore> so we can be fairly sure nowadays whether or not we're risking a sea landing
[17:53] <haptiK> thats pretty cool
[17:53] <X-Scale> Oh...precious tool
[17:54] <edmoore> very!
[17:54] <haptiK> yah very
[17:54] <edmoore> we have a version which runs during the flight too
[17:54] <haptiK> i likey
[17:54] <edmoore> that can allow us to be at the landing site and see it come down
[17:54] <edmoore> as the accuracy only improves as the flight progresses
[17:55] <edmoore> there is a version here too - cuspaceflight.co.uk/hourly-predictions
[17:55] <edmoore> this shows you the locus of landing points if you were to launch from now and every subsequent hour for the next 5 days (for a given set of flight parameters). it's basically 'the week at a glance'
[17:56] <edmoore> to see whether or not it looks primising
[17:56] <edmoore> promising*
[17:56] <edmoore> as you can see, this week really does not look promising
[17:58] <sbasuita> ;(
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[17:58] <edmoore> the flight scenario is currently set up for sbasuita and co's forthcoming launch
[17:58] <edmoore> hence his face
[17:59] <haptiK> cool
[18:00] <haptiK> how long does it take a balloon to get to its burst diameter?
[18:00] <edmoore> usually of the order of two hours
[18:00] <haptiK> and to decend?
[18:00] <edmoore> the combination of balloon size, payload mass, and quantity of helium you put in affect the ascent rate and burst altitude
[18:00] <edmoore> maybe 30-40 minutes to descend
[18:02] <edmoore> we usually aim for a descent rate (at sea level) of less than 5m/s
[18:03] <edmoore> and you can calculate the parachute size you need for a given payload mass to achive that easily enough
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[18:15] <haptiK> edmoore: thanks for all the information
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[18:15] <edmoore> np
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[18:27] <earthshine> Question.....
[18:28] <earthshine> about balloon expansion
[18:28] <earthshine> is it linear ?
[18:28] Lunar_Lander (~lunar_lan@p548854CB.dip.t-dialin.net) joined #highaltitude.
[18:28] <Lunar_Lander> hello
[18:28] <SpeedEvil> earthshine, no
[18:29] <Lunar_Lander> just got mail
[18:29] <Lunar_Lander> Spherachutes shipped my 72" chute
[18:29] <SpeedEvil> earthshine, or rather - more or less graphing volume vs pressure
[18:29] <earthshine> Is there a graph anywhere that shows a rough guide to the expansion ?
[18:29] <SpeedEvil> earthshine, maening that it's approximateliy constant lift
[18:30] <Lunar_Lander> SpeedEvil do you want to have sensors in the balloon?
[18:31] Action: SpeedEvil has no concrete plansl
[18:31] <SpeedEvil> interior pressure would be inductor
[18:31] <SpeedEvil> interestig
[18:33] <Lunar_Lander> yea
[18:33] <Lunar_Lander> and my chute is on my way
[18:34] <Lunar_Lander> Other things in the News: I wrote to the Secretary-General of the UN
[18:34] <haptiK> about what
[18:34] <Lunar_Lander> about that I think that there are many countries in the world in which science has to become stronger
[18:34] <Lunar_Lander> and the stratosphere balloon is the tool for it
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[18:44] jcoxon (~jcoxon@92.40.207.37.sub.mbb.three.co.uk) joined #highaltitude.
[18:45] <jcoxon> evening
[18:45] <jcoxon> ping rj
[18:45] <jcoxon> damn he isn't here
[18:45] #highaltitude: mode change '+o jcoxon' by ChanServ!ChanServ@services.
[18:45] <earthshine> Hi James
[18:45] <Lunar_Lander> hello jcoxon
[18:46] <Lunar_Lander> wanna have the news?
[18:46] Topic changed on #highaltitude by jcoxon!jcoxon@92.40.207.37.sub.mbb.three.co.uk: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk, WB8ELK Launch Sat 26/3/10 15:00UTC hopefully on http://spacenear.us/tracker/
[18:47] <Lunar_Lander> saturday is the 27th
[18:47] <Lunar_Lander> :P
[18:48] Topic changed on #highaltitude by jcoxon!jcoxon@92.40.207.37.sub.mbb.three.co.uk: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk, WB8ELK Launch Sat 27/3/10 15:00UTC hopefully on http://spacenear.us/tracker/
[18:49] <jcoxon> oops i've written 26/3/10 so many times today - had a 5hour ward round
[18:49] <Lunar_Lander> ah
[18:49] <Lunar_Lander> jcoxon were you the one who gave me the Spherachutes tip?
[18:50] <jcoxon> noe
[18:50] <jcoxon> nope*
[18:51] <Lunar_Lander> ok
[18:51] <Lunar_Lander> anyways, they just shipped my 72" chute :)
[18:52] <jcoxon> 72!
[18:53] <Lunar_Lander> yea
[18:53] <jcoxon> hmmm need to get rjharrison to un redirect his sight as currently dl-fldigi is down
[18:53] <Lunar_Lander> I got that from the graph
[18:53] <Lunar_Lander> I had them make it white, yellow and orange for good visibilita
[18:53] <Lunar_Lander> *visibility
[18:54] <DanielRichman> jcoxon, use wireshark!
[18:54] <DanielRichman> to see what would have happened
[18:54] <DanielRichman> Although it should print what it was going to post to the console
[18:55] <jcoxon> DanielRichman, no i mean for tomorrow's wb8elk flight!
[18:55] <DanielRichman> ah!
[18:55] <DanielRichman> what version of dl-fldigi are you going to use for that? an old one?
[18:56] <jcoxon> yeah
[18:56] <jcoxon> well i won't be using it :-p
[18:57] <jcoxon> but yeah wb8elk has been using the svn version r86 i think
[19:06] <earthshine> Is that guy in the UK?
[19:06] <jcoxon> no
[19:07] <jcoxon> earthshine, WB8ELK is the founder of amateur ballooning
[19:07] <jcoxon> pretty much
[19:07] <jcoxon> been doing this for about 20 years
[19:08] <earthshine> Ahh I see
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[19:18] <steven> heh
[19:18] <steven> heh heh heh heh
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[19:54] <natrium42> 47 people, nice
[19:55] <SpeedEvil> all we need is ak, and we can take over the world.
[19:56] <natrium42> my initials are AK
[19:59] Action: SpeedEvil downloads 'perfecting your diabolical laughter part 1'
[20:03] <Lunar_Lander> hello natrium42
[20:04] <natrium42> alles krass oder was?
[20:04] <Lunar_Lander> yea :)
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[20:09] <Lunar_Lander> natrium42 did you tell me of Spherachutes?
[20:10] <natrium42> think so
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[20:10] <Lunar_Lander> thanks again :)
[20:10] <Lunar_Lander> my chute is on it's way now
[20:11] <natrium42> cool, np
[20:12] <Lunar_Lander> :)
[20:12] <natrium42> so when's launch?
[20:13] <Lunar_Lander> in summer somewhere :)
[20:14] <natrium42> kk
[20:15] <Lunar_Lander> but I need one thing sorted
[20:15] <Lunar_Lander> the current plan is like this
[20:15] <Lunar_Lander> there are sensors and a µC by a friend of mine
[20:15] <Lunar_Lander> and they record onto an SD-Card
[20:15] <Lunar_Lander> and the balloon sends out a 433 MHz signal so that we know where it is
[20:16] <Lunar_Lander> is that assembly OK?
[20:17] <natrium42> sounds good
[20:17] <natrium42> maybe you can use ham radio in the air in germany?
[20:17] <natrium42> then you could do higher bitrates
[20:18] <natrium42> (if you require that)
[20:18] <Lunar_Lander> I have to look into that
[20:18] <Lunar_Lander> but if 433 is European, I think ham radio is also european
[20:18] <Lunar_Lander> that could mean that UK and German laws are equal
[20:19] <Lunar_Lander> but I will research that
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[20:41] <Lunar_Lander> hi RocketBoy
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[20:43] <rjharrison> DL server back online
[20:43] <rjharrison> sorry about the doewn time
[20:43] <Lunar_Lander> hi rjharrison
[20:44] <Lunar_Lander> congratulations to the BBC report
[20:44] <rjharrison> Lunar_Lander thanks
[20:44] <Lunar_Lander> you're welcome
[20:45] <rjharrison> I'v not really been able to keep up
[20:45] <Lunar_Lander> am I right that the only things on-board were the camera and the 433 MHz signal?
[20:45] <rjharrison> Yep and a couple of temperature sensors
[20:45] <Lunar_Lander> ah ok
[20:45] <Lunar_Lander> and they recorded on-board?
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[20:47] Nick change: Matt_sot1n -> Matt_soton
[20:49] <rjharrison> Lunar_Lander no not on icarus II
[20:50] <Lunar_Lander> ah so that was via the radio?
[21:00] <Lunar_Lander> natrium42?
[21:01] <natrium42> yo
[21:02] <Lunar_Lander> one moment
[21:04] <Lunar_Lander> http://www.mediafire.com/?4jhwzgm4die
[21:09] <Lunar_Lander> does the download work?
[21:17] <Lunar_Lander> natrium42
[21:17] <natrium42> yeah
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[21:18] <Lunar_Lander> cool that it worked :)
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[21:24] <Lunar_Lander> did you read it?
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[21:32] <Lunar_Lander> rjharrison did you check my link?
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[22:09] <earthshine> Lunar_Lander what is this document ?
[22:10] <Lunar_Lander> that's the experiment list atm :P
[22:11] <earthshine> Explain
[22:13] <Lunar_Lander> in the upper half you see institutions and their experiments
[22:13] <Lunar_Lander> the lower half contains institutions which did not reply yet, and what they work on
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[22:15] Action: DanielRichman is confused
[22:15] <DanielRichman> fldigi: void put_status(const char *msg, double timeout, status_timeout action);
[22:15] <DanielRichman> looks like its designed to be thread safe; that is; it wraps the call that updates the UI like this:
[22:15] <DanielRichman> REQ(put_status_msg, StatusBar, m, timeout, action);
[22:16] <DanielRichman> which is defined in include/qrunner.h and seems to queue it up to be executed by the main thread
[22:16] <DanielRichman> However.
[22:16] <DanielRichman> void put_status(const char *msg, double timeout, status_timeout action) {
[22:16] <DanielRichman> static char m[50];
[22:16] <earthshine> Lunar_Lander I have no idea what you are talking about I am afraid
[22:16] <DanielRichman> it copies msg into m, then passes that onwards. That's not going to be thread safe is m is static?!
[22:17] <DanielRichman> *if
[22:17] <Lunar_Lander> earthshine: "Mr Gerrit Avenant, SunSpace, University of Stellenbosch: Would like to provide an electric field mill to determine the electric field strength at different altitudes." That means that I have contacted this guy and he would like to fly that experiment on my balloon
[22:18] <jcoxon> DanielRichman, hows the fldigi hacking coming?
[22:18] <DanielRichman> jcoxon, see confusedness above ^^
[22:18] <DanielRichman> the chances of a thread-safety issue is very low, but it's nice to be clean & proper in ones hacking
[22:18] <jcoxon> this is why i leave all this up to yo
[22:18] <jcoxon> u
[22:19] <jcoxon> for the xml parsing bit i think i'll move it from within fldigi.cxx and stick it in dl_fldigi.cxx
[22:19] <earthshine> OK I see
[22:19] <earthshine> LL where are you again ?
[22:19] <DanielRichman> cool. perhaps dl_fldigi needs its own folder?
[22:19] <Lunar_Lander> Germany
[22:19] <earthshine> Cool
[22:19] <jcoxon> DanielRichman, maybe in the future
[22:19] <jcoxon> :-)
[22:19] <DanielRichman> It'd be harsh to start pinging random people that I think know their C; so i'll just leave that question hanging
[22:19] <jcoxon> it'll be okay for now
[22:19] <Lunar_Lander> :)
[22:20] <Lunar_Lander> jcoxon I just posted an experiment list :P
[22:20] <DanielRichman> unless you know that one of the fldigi devs hangs out somewhere on irc where I can go pester them
[22:21] <hall> Helo all out there. I am new to this game and am lookingforward to the experience of launching a balloon for an astronomical society
[22:21] <Lunar_Lander> hello hall
[22:21] <Lunar_Lander> welcome to the club
[22:21] <earthshine> What country hall ?
[22:21] <Lunar_Lander> hmm
[22:21] <Lunar_Lander> do we have a hall?
[22:22] <hall> hello lunar, I'm in Northern England
[22:22] <earthshine> What astronomical society ?
[22:22] <Lunar_Lander> I'm in North-Western Germany, Lower Saxony
[22:22] <Lunar_Lander> are you from the Space State?
[22:22] <Lunar_Lander> i.e. Cumbria
[22:22] <hall> York Astronomical Society,
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[22:23] <earthshine> Cool
[22:23] <earthshine> I'm in the Orpingtpon (Astronomical Society (Kent)
[22:24] <jcoxon> hall, the first place to check out is wiki.ukhas.org.uk
[22:24] <hall> Nice , hav'nt been to kent for years, Hawkhirst was the last place.
[22:25] <hall> jcoxon, I have been reading, am no expert on electronics bt will get some help from the society.
[22:26] <jcoxon> thats no problem - i wasn't either when i started
[22:30] <hall> Did anyone see the fellow on tv, Rober Harrisson, He had some good results with his space balloon.
[22:30] <Lunar_Lander> we saw it all :)
[22:30] <Lunar_Lander> he is also in here hall
[22:30] <DanielRichman> jcoxon, is the whole "you need to enter a callsign" deal necessary?
[22:30] Nick change: N900evil_ -> SpeedEvil
[22:30] <DanielRichman> why not let UNKNOWN upload?
[22:31] <jcoxon> oh thats a throw back from a while ago
[22:31] <jcoxon> as we thought we'd just get lots of UNKNOWNs
[22:31] <jcoxon> that bit can be removed as we'll replace it with the startup wizard
[22:32] <DanielRichman> OK cool. Just saying though - you don't wanna dissuade people by forcing them to choose a name etc.
[22:32] <jcoxon> yeah but they need some form of identifier
[22:32] <Lunar_Lander> hall, what experiments do you plan?
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[22:35] <hall> Not sure yet, just take some photos really and see what will happen from there
[22:35] <earthshine> hall - Robert Harrison is known to us all - he is one of the stalwarts of the UKHAS
[22:35] <earthshine> He is our father figure
[22:35] <earthshine> Whilst James is our mother figure
[22:36] <earthshine> ;)
[22:36] <jcoxon> ?!
[22:36] <fsphil> hmmm
[22:36] <fsphil> I didn't want that picture
[22:36] <fsphil> :p
[22:36] <earthshine> lol
[22:36] <jcoxon> not sure thats exactly true
[22:36] #highaltitude: mode change '+o jcoxon' by ChanServ!ChanServ@services.
[22:36] <natrium42> lol
[22:36] <fsphil> uh oh, he's doing his gandalf thing
[22:37] <hall> Is he now , I took the liberty of e-mailing him earlier for advice but reckon he will be busy.
[22:37] <jcoxon> where does ed fit into this unholy marriage?
[22:37] <Lunar_Lander> he's the uncle
[22:37] <jcoxon> hmmmmmm
[22:37] <Lunar_Lander> the other Uncle is Uncle Ben's
[22:37] <Lunar_Lander> xD
[22:37] <natrium42> hall, be sure to check FAQ on ukhas.org.uk
[22:37] <natrium42> :P
[22:38] <earthshine> He's the creepy Uncle that smells a bit of wee
[22:38] <Lunar_Lander> rjharrison are you still here?
[22:39] <jcoxon> time to stop this weird picture
[22:39] <jcoxon> it was fine at rjharrison being a UKHAS stalwart
[22:39] <fsphil> right, anyway ... successfully transmitted and received some jpeg blocks today
[22:40] <jcoxon> fsphil, wow you're making quick progress
[22:40] <fsphil> horribly hacked together, but it proves the theory .. at short range anyway
[22:41] <natrium42> fsphil, jpeg is meh
[22:41] <natrium42> do this http://natrium42.com/balloon/nanocrunch/
[22:41] <fsphil> I know, but my camera is jpeg only :)
[22:41] <natrium42> pfft
[22:41] <fsphil> if I loose any blocks, the image will likely be split in half
[22:41] <natrium42> yah
[22:42] <natrium42> wavelet encoding would be better
[22:42] <natrium42> whenever you lose data, part of the image would be blurred
[22:42] <fsphil> if I loose the first packet, no image at all -- I'm thinking of retransmitting the first packet at the end again
[22:42] <fsphil> that would be perfect natrium42
[22:42] <fsphil> each packet just improves the images .. none are essential
[22:42] <jcoxon> fsphil, why not do SSTV :-p
[22:43] <natrium42> SSTV is played
[22:43] <natrium42> :P
[22:43] <hall> Prof Brian cox is on a certain chat show in a few minuites, lovely chap big smilley face.
[22:43] <fsphil> I still might jcoxon :)
[22:43] <jcoxon> fsphil, i plan to redo my sstv flight
[22:43] <jcoxon> once i've passed my finals that is
[22:45] <Lunar_Lander> you'll surely succeed
[22:45] <fsphil> I'd need to make some kind of RC filter to do sstv
[22:45] <fsphil> from the avr's pwm
[22:45] <natrium42> Lunar_Lander, jcoxon already had success with sstv
[22:45] <fsphil> the camera can stream raw video but with much less control
[22:45] <Lunar_Lander> I meant his finals :P
[22:45] <natrium42> oh that
[22:45] <jcoxon> :-)
[22:46] <Lunar_Lander> jcoxon standby one
[22:47] <Lunar_Lander> http://www.mediafire.com/?4jhwzgm4die
[22:47] <fsphil> sstv is fun -- should have my foundation license next week if tomorrow goes well, hope to send a few images
[22:48] <natrium42> jcoxon, shall we clear the tracker for WB8ELK?
[22:49] <jcoxon> natrium42, yeah
[22:49] <jcoxon> i hope he tests it in advance
[22:49] <jcoxon> wb8elk may have started it all but he isn't great with replying to emails when they are important :-p
[22:50] <earthshine> You are sending images over fl-digi ?
[22:50] <jcoxon> Lunar_Lander, wow thats a good list of experiements
[22:50] <Lunar_Lander> thanks :)
[22:50] <natrium42> jcoxon, do you remember his location? i could download the weather data
[22:50] <fsphil> receiving with fldigi
[22:50] <natrium42> or is it in the dl logs?
[22:52] <rjharrison> ping pong
[22:52] <rjharrison> Hey jcoxon all ok
[22:52] <Lunar_Lander> rjharrison , hall is new here and saw you on TV
[22:52] <DanielRichman> jcoxon, rjharrison, have done a preliminary put_status while we CURL hack
[22:53] <rjharrison> ok
[22:53] <DanielRichman> In the split second between the \n and the second $ you can see it go "uploading to server" and "sentence successfully uploaded"
[22:53] <rjharrison> jcoxon do I need to do anything server side
[22:53] <DanielRichman> then it gets overridden by "extracting" :D
[22:53] <jcoxon> natrium42, http://maps.google.com/?q=http://www.robertharrison.org/listen/receivers.php&t=p and go to wb8elk
[22:53] <DanielRichman> rjharrison, it'd be nice if we have a better way of talking back to the program
[22:53] <DanielRichman> rjharrison, perhaps for now just have listen.php print DL_FLDIGI_OK or something
[22:53] <natrium42> jcoxon, cheers
[22:53] <DanielRichman> maybe we need to agree on how it will talk back first
[22:53] <jcoxon> rjharrison, not that i know of - i think it might require so crazy debugging
[22:54] <jcoxon> once he is up
[22:54] <rjharrison> Is bill brown about to launch
[22:54] <jcoxon> tomorrow 15:00UTC
[22:55] <DanielRichman> My question is: since the "extracting... " status overrides information about the upload of the sentence a split second after it happens, should I delay or remove it in some way? perhaps we can put it in the HAB-BAR rather than the status
[22:55] <DanielRichman> it's more of a... health check rather than a status
[22:55] <jcoxon> not sure if dl-fldigi/server/spacenear.us will actually work
[22:55] <rjharrison> Is that includeing clock changes or are they sunday?
[22:55] <jcoxon> DanielRichman, its a tough one - i think the extracting is important
[22:56] <jcoxon> rjharrison, UTC :-p
[22:56] <rjharrison> what is dl-fligi/server/spacenear.us?
[22:56] <jcoxon> thats the whole tracking system summarised
[22:57] <jcoxon> into one phrase
[22:57] <rjharrison> is that a link?
[22:58] <Lunar_Lander> jcoxon I especially liked that I woke up and had an E-Mail from the Marshall Islands :P
[22:58] <jcoxon> rjharrison, no
[22:59] <jcoxon> as in our radio listening system of dl-fldigi + listening server + spacenear.us
[22:59] <natrium42> lol
[22:59] <jcoxon> too many interviews
[22:59] <jcoxon> you've gone crazy
[22:59] <jcoxon> :-p
[22:59] <natrium42> or wine :)
[22:59] Action: natrium42 is downloading GFS data
[22:59] <rjharrison> Bear actually
[22:59] <rjharrison> cool
[22:59] <jcoxon> natrium42, good catch
[23:00] <Lunar_Lander> I just had a crazy idea :P
[23:00] <rjharrison> I will be around tomorrow for launch
[23:00] <Lunar_Lander> what about HAB holidays on Nauru xD?
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[23:01] <fsphil> who's launching tomorrow?
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[23:02] <natrium42> wb8elk
[23:02] <natrium42> http://hiwaay.net/~bbrown/index.htm
[23:07] <fsphil> love the news report from 1994
[23:07] <DanielRichman> rjharrison, jcoxon, http://github.com/danielrichman/dl-fldigi/commit/e16f127de78aef9406737395f231db124e84cff3 http://github.com/danielrichman/dl-fldigi/tree/status-tests
[23:07] <DanielRichman> You don't want to pull that one into master; it's some tests etc.
[23:07] <DanielRichman> but it works.
[23:08] <DanielRichman> Until we decide how we want to display infos and where, it'll have to stay as a branch :)
[23:09] <rjharrison> hi hall
[23:09] <jcoxon> DanielRichman, okay
[23:10] <DanielRichman> if you want, run it, see how it looks etc.
[23:10] <Lunar_Lander> hall are you still there?
[23:10] <rjharrison> Be in no doubt the grandfather figures on here are jcoxon, ed, natrium and RocketBoy. I'm relatively speaking the new kid on the block
[23:10] <DanielRichman> there's a few hacky comments in that branch; I usually clean up my master before I commit. You want to have a look at the diff
[23:10] <rjharrison> There are a few others been on here for a good long while too like fergusnoble etc
[23:10] <jcoxon> DanielRichman, am mid hacking xml parsing
[23:11] <jcoxon> will have a look in a bit
[23:11] <DanielRichman> cool :)
[23:12] <sbasuita> DanielRichman, what
[23:12] <sbasuita> DanielRichman, the
[23:12] <sbasuita> DanielRichman, gareth briggs?
[23:13] <sbasuita> DanielRichman, surely not ;P
[23:13] <DanielRichman> sbasuita, obviously not. Check the timezone
[23:13] <sbasuita> DanielRichman, ah yes
[23:13] <sbasuita> DanielRichman, tbf everyone is in on the act now ;)
[23:14] <DanielRichman> sbasuita, more launches more fun
[23:14] <DanielRichman> sbasuita, also means you have to do something "different" with your payloads.
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[23:14] <jcoxon> oh, can people please reply on the mailing list to the various messages
[23:14] <jcoxon> don't want to come across unfriendly
[23:15] Action: jcoxon is a little busy currently
[23:15] <hall> Just been telling the society who I'm in touch with, but think they have all gone to bed.
[23:16] <Lunar_Lander> hall, rjharrison is now here
[23:17] <rjharrison> hall your is around the corner from ne
[23:17] <rjharrison> me
[23:17] <rjharrison> York
[23:17] <rjharrison> Humm i'm tired
[23:17] <hall> Lunar _lander rjharrisson I here you.
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[23:20] <hall> Speak soon chaps.
[23:20] <rjharrison> hall sure
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[23:22] <rjharrison> hi edmoore
[23:22] <edmoore> hi
[23:22] <edmoore> can someone edit the wiki so that it says 'READ THE F***** FAQ BEFORE POSTING' next to the link to the mailing list
[23:22] <edmoore> I have lost my password
[23:23] <edmoore> otherwise we'll be forever going over level 1 questions
[23:23] <DanielRichman> I just saw your email ed :P
[23:23] <natrium42> lol ed
[23:23] <Lunar_Lander> xD
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[23:31] <rjharrison> hall, just read your email
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[23:40] <Lunar_Lander> oh
[23:40] <Lunar_Lander> well people, I'm off to bed :)
[23:40] <Lunar_Lander> good night!
[23:40] <fsphil> night LL!
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[23:40] <fsphil> long day tomorrow, must do the same
[23:40] <fsphil> night folks!
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[23:41] <earthshine> cya
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[00:00] --- Sat Mar 27 2010