highaltitude.log.20120628

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[06:50] <eroomde> Upu: that new curiosity lsnding video is really good isnt it
[06:50] <UpuWork> yes very
[06:50] <UpuWork> movie levels of excitement
[06:50] <eroomde> just watched it again over toast now that the crazy first half of the week (60 hrs work so far...) is over
[06:50] <UpuWork> we need to get up early don't we
[06:51] <UpuWork> link it again pls I want to watch it :)
[06:51] <UpuWork> http://upload.wikimedia.org/wikipedia/commons/4/46/New_Horizons_1.jpg
[06:51] <UpuWork> just looking at that :)
[06:51] <eroomde> yes ill be staing up
[06:51] <eroomde> i want to go and see tom rivellini in sept but i might not ask before i knoe the outcome :)
[06:52] <eroomde> http://www.theregister.co.uk/2012/06/27/nasa_curiosity_countdown/
[06:52] <eroomde> has video embedded
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[06:52] <eroomde> yeah its just so nervracking but awesome doing mechatronicy things
[06:52] <UpuWork> bit of Immediate Music score in the background
[06:52] <eroomde> i like have to use electronics to sequence macheanical things at really accurate times
[06:53] <UpuWork> the whole thing is just concentrated awesome
[06:53] <eroomde> i like the complex ballet of interacting subsystems
[06:53] <UpuWork> I really hope it works
[06:53] <eroomde> yeah... its gonna be a tough time if it does
[06:53] <eroomde> t
[06:53] <UpuWork> I love the little rockets keeping it pointing right as it comes in to the upper atmosphere
[06:53] <eroomde> i just like adam seltzingers bit at the beginning
[06:54] <eroomde> sdmiting the whole things just looks bonkers
[06:54] <UpuWork> lol
[06:54] <UpuWork> 200 mph under a parachute
[06:54] <eroomde> yeah its cool, theyre trying to do lift to drag on the entry on this one
[06:54] <eroomde> so surfing it on its own shockwave
[06:54] <eroomde> to steer it a bit to a tighter landing spot
[06:55] <UpuWork> I hope it works or those Martins are going to be pissed as we irradiate a small section of their surface
[06:56] <eroomde> at least it helps with the biological contaminents
[06:56] <UpuWork> yep
[06:56] <eroomde> but yeah, as you say, seriously concentrated awesome
[06:56] <eroomde> or 'boss as fuck' as your hydrogen poster says
[06:56] <eroomde> thats become a bit overused at work now since that
[06:57] <eroomde> so we had all sorts of shit yesterday
[06:57] <eroomde> getting the same engine to light vertically
[06:57] <eroomde> theres an old saying that it's one thing to fire a rocket, quite another to light it
[06:57] <eroomde> and its true, blimey
[06:58] <daveake> That's an incredible landing sequence
[06:58] <daveake> Amazing if they pull it off
[06:59] <fsphil> the only flaw is nobody is there to see it
[06:59] <eroomde> oh god dont
[06:59] <fsphil> great video, just watched it for the first time
[06:59] <eroomde> try persuading scinetists of the value of 300g spent on an upwarding facing camera on the rover to film edl
[06:59] <eroomde> just for the engineering data
[07:00] <eroomde> it's a lost cause
[07:01] <UpuWork> back sorry just been showing our sales guy the landing
[07:01] <UpuWork> he just laughed
[07:01] <UpuWork> "and they seem like such clever people as well"
[07:02] <UpuWork> that camera will be the best 300g anyone ever spent
[07:02] <eroomde> i would say so
[07:02] <eroomde> but last time i said this you pointed out that i was obsessed
[07:03] <eroomde> but yeah i mean thats why i was so keen to do the testing at our scale. we just have so little data sbout how the chutes perform
[07:03] <eroomde> the accelerometer data from phonix looks like its chute wasnt working properly
[07:03] <eroomde> so does that unbeleivable stunning photo
[07:03] <eroomde> looks like the chute isnt work
[07:04] <eroomde> oh did you see the photo of phoenix descending which was caught by a sat in mars orbit?
[07:04] <eroomde> its just breathtaking
[07:04] <UpuWork> no ?
[07:04] <UpuWork> linky
[07:04] <fsphil> is my fav image
[07:04] <fsphil> from space ever
[07:04] <daveake> oh yeah, saw that
[07:05] <fsphil> http://www.nasa.gov/mission_pages/phoenix/images/press/PSP_008579_9020_descent.html
[07:05] <UpuWork> wow
[07:06] <eroomde> but look, chute doesnt look properly deployed
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[07:06] <eroomde> suspect it might be jellyfishing
[07:06] <daveake> Nearly as good as AVA from CLOUD :)
[07:06] <eroomde> they were also surprised by mer chutes
[07:07] <eroomde> they just had plenty of margin in the retrorockets to absorb chute performance errors
[07:07] <eroomde> but its still not cool
[07:07] <UpuWork> the Phoenix one worked ok though didn't it
[07:07] <UpuWork> that was the small Sorjourner rover ?
[07:07] <eroomde> no, that was pathfinder
[07:07] <eroomde> with the small rover
[07:07] <UpuWork> Which one was the Phoenix one ?
[07:07] <eroomde> they certainly sisnt have the tech to take that photo in 1997
[07:08] <eroomde> phoenix was a stantionary lander at the poles
[07:08] <UpuWork> ah ok
[07:08] <UpuWork> and Spirit and Opportunity are the larger rovers that they are sending Curiosity to dig out
[07:08] <eroomde> correct
[07:08] <eroomde> some of the most successful things ever
[07:08] <UpuWork> http://www.nasa.gov/images/content/230838main_PSP_008579_9020_descent.jpg where is the high high resolution of that
[07:09] <eroomde> UpuWork: so on youtube
[07:09] <eroomde> theres a talk on the computer history museaum channel
[07:09] <eroomde> by pete theiseinger (sp?) the mer pm
[07:10] <eroomde> which is purest techy talk about developing spirit and opportunity, for about 2hrs
[07:10] <eroomde> its a fantastic talk
[07:10] <eroomde> lots more detail about the challenges of landing
[07:10] <UpuWork> http://phoenix.lpl.arizona.edu/05_25_10_pr.php its broken
[07:10] <number10> daveake: cuddykid is not launching this weekend - he mentioned it yesterday but you were no on the chan
[07:10] <UpuWork> I'll try find that eroomde
[07:10] <daveake> Ah, thanks #10kV
[07:10] <UpuWork> heh
[07:11] <number10> zzzt :(
[07:11] <number10> but he was asking if you were around in the week daveake
[07:11] <UpuWork> if anyones interested fsphil and I got DominoEX out of an NTX2 last night using a single PWM Line
[07:12] <number10> thats nice UpuWork
[07:12] <UpuWork> in fact it easily got 1200 baud RTTY using PWM with no resistors
[07:12] <number10> would be good to have some variation in HAB transmissions
[07:14] <UpuWork> its very sensitive to shift
[07:14] <UpuWork> 18 tones over 355hz
[07:14] <eroomde> yeah u need temp comp or some kind of comp with domino ex
[07:14] <UpuWork> Bill Browns managed it
[07:14] <UpuWork> not sure how
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[07:15] <daveake> UpuWork I tried 1200 with 425 shift from the pi, and it was OK but not 100%. Presoomably a wider shift is the trick?
[07:15] <UpuWork> I think I pushed the shift up a little but nothing massive
[07:15] <UpuWork> it was fine
[07:15] <daveake> ok
[07:15] <eroomde> we did dominoex on the badger1 flight computer. the dac resolution was a bit low tho for it to be reliable
[07:16] <UpuWork> no DAC on this eroomde
[07:16] <eroomde> yes i read
[07:16] <UpuWork> just PWM with about 350k Resistor in line
[07:16] <eroomde> tho it is a dac of course :p
[07:16] <UpuWork> well yes I suppose so
[07:16] <daveake> D in A out. Sounds like a DAC to me :p
[07:24] <eroomde> well itll be cool to see if fly
[07:25] <eroomde> did you do the fec version?
[07:25] <UpuWork> not yet
[07:25] <UpuWork> just playing last night
[07:25] <UpuWork> https://dl.dropbox.com/u/63720513/Images/HAB/pwmrtty.png
[07:26] <UpuWork> software adjustable shift
[07:28] <eroomde> stick an rc filter inline and see if it makes a difference to the size of the lobes
[07:28] <fsphil> I believe all of the MFSK modes are going to be seriously sensitive to the variable shift
[07:28] <UpuWork> yeah I'll need to do some maths
[07:29] <UpuWork> I like big lobes and I cannot lie, my other brothers do not lie..
[07:29] <gonzo_> the doppler/G shift is going to be the killer there
[07:30] <UpuWork> baby got bandwidth
[07:30] <fsphil> it's suprisingly tolerent of drift
[07:30] <UpuWork> yeah it drifted out and still decoded
[07:30] <fsphil> needs manual tuning though
[07:30] <UpuWork> what resistor value did you end up with ?
[07:31] <fsphil> I'm not sure actually, there's two in there
[07:31] <eroomde> yeah dominoex's killer feature is that data is incoding in the jumps between symbol frequencies
[07:31] <fsphil> will check when I get home
[07:31] <eroomde> not the absolute symbol frequencies themselves
[07:31] <fsphil> I think we need a mode with 4 tones rather than 18
[07:31] <gonzo_> afc could probably follow mfsk, but if you get qsb then the afc could get confused what to lock to
[07:32] <UpuWork> custom mode fsphil ? :)
[07:32] <UpuWork> something with a shift that the RFM22B could do
[07:33] <fsphil> or something with variable shift like rtty
[07:33] <fsphil> not an mfsk mode
[07:33] <fsphil> but fsk at least
[07:34] <fsphil> and no start/stop bits
[07:36] <fsphil> and convolution coding
[07:36] <fsphil> and a pony
[07:36] <eroomde> just some fec would make the world of difference to rtty
[07:36] <eroomde> its such low hanging fruit
[07:45] <fsphil> mixing fec and rtty isn't ideal
[07:45] <fsphil> but yea, better than nothing
[07:46] <nosebleed_> Hi people !
[07:49] <eroomde> no
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[07:53] <UpuWork> morning nosebleed_
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[08:58] <cuddykid> wow, finally an awesome thunderstorm!
[08:58] <SpeedEvil> np: Boom - Shake the room.
[08:59] <SpeedEvil> np: Katie Melua - There are 9 million amperes in the primary stroke.
[08:59] Action: SpeedEvil arghs at nexus 7s lack of microSD port.
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[09:01] <cuddykid> great - energizer are going to supply me with some more batts :D
[09:01] Action: fsphil sighs at the lack of thunderstorms here
[09:01] <fsphil> I live in the wrong place :)
[09:01] <fsphil> looking good over there ... http://www.blitzortung.org/Webpages/index.php?lang=en&subpage_0=12
[09:01] <SpeedEvil> cuddykid: yea!
[09:02] <cuddykid> the road is actually a river here now lol
[09:04] <eroomde> cuddykid: where?
[09:05] <eroomde> oh fuck yeah
[09:05] <eroomde> ooking at raintoday.co.uk
[09:05] <fsphil> they're playing golf not far from here, so there's a good chance it'll head this way :)
[09:05] <eroomde> there's some serious activity over worcester
[09:05] <fsphil> nice
[09:05] <fsphil> that lines up with the lightning map pretty well
[09:06] <fsphil> looks like it's going to be dry here for a while
[09:06] <WillDuckworth> yep - lots of lightning and thunder here!
[09:08] <eroomde> nice and sunny here in oxford
[09:10] <SpeedEvil> And in scotland.
[09:11] <SpeedEvil> And the council just wandered past, and cut my path for me.
[09:11] <SpeedEvil> So I don't need to do that today. :)
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[09:15] <jcoxon> horus 27 totally wild launch?
[09:17] <SpeedEvil> Horus gone wild?
[09:17] <jcoxon> see spacenear.us
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[09:21] <daveake> [09:19] <Darkside> stuff on the tracker is us btw
[09:21] <daveake> [09:19] <Darkside> doing a short talk [09:19]
[09:22] <daveake> <Darkside> want to so a live temo
[09:22] <SpeedEvil> Is it a teeny pico payload, or just fake
[09:22] <eroomde> perverse scenario whereby internet is down but ssh isn't
[09:22] <eroomde> so
[09:23] <SpeedEvil> ssh -D
[09:23] <eroomde> could someone quickly google for me what the arguement for xargs is that puts c-string escape characters into the output?
[09:23] <SpeedEvil> and then tell ...
[09:23] <SpeedEvil> ah
[09:23] <SpeedEvil> c-string?
[09:23] <eroomde> 'xargs c string escape characters' should return the hit
[09:23] <SpeedEvil> you mean null?
[09:23] <fsphil> backslash
[09:24] <russss> it's "-0"
[09:24] <russss> eroomde: ^
[09:24] <SpeedEvil> what do you want the output to look like?
[09:24] <SpeedEvil> and -0 splits the input to xargs on 0's
[09:24] <russss> actually, -0 accepts null-terminated *inputs*
[09:24] <SpeedEvil> not newlines
[09:24] <russss> and find -0 outputs null-terminated
[09:24] <jcoxon> russss, do you guys want a balloon launch at EMF camp?
[09:25] <russss> perhaps
[09:25] <russss> I was going to email the UKHAS list once we were selling full tickets
[09:25] <eroomde> russss: thanks
[09:25] <jcoxon> though quite close to london + olympics
[09:25] <russss> I think the site isn't ideal either
[09:25] <jcoxon> maybe overflying
[09:25] <jcoxon> to test out everyones rtl-sdrs :-)
[09:25] <pjm> ah i have thought about attending that EMF camp also
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[09:25] <russss> please do, it'll be fun :)
[09:26] Action: russss is one of the organisers
[09:26] <fsphil> what is it?
[09:26] <fsphil> n/m, google
[09:26] <pjm> a hacker camp sort of thing
[09:26] <russss> http://www.emfcamp.org/
[09:26] <pjm> so would be quite interesting to see what people are up to re RF projects
[09:26] <fsphil> that sounds great, would have loved to attend
[09:26] <russss> basically a lot of geeks in a field with power and high-speed internet
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[09:28] <eroomde> where is the field?
[09:28] <russss> Milton Keynes
[09:28] <eroomde> the devil's layby
[09:28] <fsphil> see, I live in the wrong place :)
[09:28] <russss> heh
[09:30] <kokey> I'm quite close to MK
[09:32] <kokey> does emfcamp do some sorts of competitions?
[09:32] <gonzo_> big problem, no parking by tent. That usually bars it for me
[09:32] <kokey> because I think what made the demo/coding scene gatherings cool, were the competitions
[09:35] <cuddykid> eroomde: worcester :)
[09:36] <gonzo_> close to BP thoyugh.
[09:36] <eroomde> bp?
[09:38] <russss> bletchley park
[09:39] <eroomde> i think i failed the entrance test huh
[09:39] <russss> heh
[09:40] <cuddykid> http://www.netweather.tv/index.cgi?action=lightning;sess=
[09:40] <cuddykid> brightening up here now
[09:40] <gonzo_> I really must go and visit that place. Been on my To Do list for years
[09:40] <russss> yeah it's nice and sunny in London. It drizzled a bit.
[09:46] <kokey> I think the Shell is closer than BP
[09:46] <kokey> it's humid today
[09:46] <eroomde> yes it is
[09:46] <Laurenceb> looks like two large storms
[09:46] <eroomde> yesterday too
[09:46] <Laurenceb> heading my way
[09:47] <eroomde> we just couldn't get our new engine to ignite yesterday
[09:47] <eroomde> first time we've tried to fire it vertically
[09:47] <pjm> it would be cool to get people from EMF to visit BP to see proper computing too
[09:47] <eroomde> not sure it was particularly to do with atmospherics but tey do often make a difference
[09:57] <kokey> my girlfriend, when she was still living in spain, lived in an apartment that had the bills included, and the boiler's release valve was leaking
[09:58] <kokey> so it kept on letting hot water out on the overflow at the back, and it kept boiling
[09:58] <kokey> the flat was so hot and humid, nothing could burn in it
[09:58] <eroomde> mmm
[09:58] <eroomde> i think that probably didn;t help us
[09:58] <kokey> it had split unit aircon, which I really could have used, but she told me that she didn't want to use it because of the cost
[09:59] <kokey> but she didn't tell me that the bills were included
[09:59] <eroomde> but i think mainly the problem was that in vertical mode, the simple igniter we were using for horizontal (quickmatch etc) falls to the bottom on the chamber which is graphite
[09:59] <kokey> I was quite annoyed when I worked that out only a few months later
[09:59] <eroomde> but when horizontal it falls to the side of the chamber wall which is a phenolic liner
[09:59] <eroomde> and liner chars a bit and you get a hybrid-type decomoposition and byrning when we let the n2o in
[10:00] <eroomde> which cna get get the n20 and ipa going properly when you let some ipa into the chamber and thorrle up
[10:00] <eroomde> in this case the ignitor products fall back towards the throat and just get blown out (kept happening) when the n20 pressure build in the chmaber
[10:00] <eroomde> with a pop
[10:00] <eroomde> we need quite a serious rethink
[10:00] <kokey> I wonder how often that happens with rocket development
[10:01] <kokey> since burn tests are usually sideways
[10:01] <eroomde> there is a saying that firing a rocket is one thing, lighting it is quite another
[10:01] <eroomde> it's not wrong
[10:01] <eroomde> well for the 'proper' rockets we do we have a nice hydrogen oxygen preburner jet
[10:01] <eroomde> that Just Works (tm)
[10:02] <eroomde> but this is a much smaller rocket and is going to fly and is an internal after-hours project for us
[10:02] <eroomde> just to see if we can do the hoving lunar-lander style rockets
[10:02] <eroomde> hovering*
[10:02] <kokey> would be nice if there was a simple cheap solution for that
[10:02] <kokey> oh, nice, small lunar landers
[10:02] <eroomde> and integrating 2 new gases (hydrogen and oxygen) and a complete pre-burner in what is already a very crowded injector plate on a small motor is going to be a trick
[10:02] <SpeedEvil> http://en.wikipedia.org/wiki/NanoFoil
[10:03] <SpeedEvil> looks like an excellent ignitor for solids
[10:03] <eroomde> mmm
[10:04] <eroomde> well if we didn;t mind liquid-phase igniters we'd just use thermite
[10:04] <SpeedEvil> http://buy.solder.com/NanoFoil-Bundle-Kit-40-Microns-x-5-Inch-Squares/P1069_1019/
[10:04] <eroomde> that'd dump enough thermal energy into the chamber to get the party going
[10:04] <eroomde> we used thermite for our big 2-stage scotland rocket in may
[10:04] <SpeedEvil> It'd be nice if it was a bit cheaper though
[10:04] <eroomde> but for this we're thinking we might aswell solve the problem with a relightable
[10:05] <eroomde> mid-flight relights would prove a point
[10:05] <SpeedEvil> That is handy, if you can do it
[10:05] <eroomde> it just elps for testing too
[10:05] <SpeedEvil> I was pondering a trinary injector
[10:05] <eroomde> makes the turnaround time faster between tests
[10:05] <SpeedEvil> for my experimental thingy
[10:05] <SpeedEvil> H2O2/kerosene
[10:06] <SpeedEvil> with a little injector that fills the last bit of the kerosene line with a permanganate rich solution of some form
[10:06] <eroomde> for example the next thing for it will be to close the loop on the throttle valves by putting injector pressors into the control system
[10:06] <eroomde> currently we just log them and do open-loop on the servos
[10:06] <eroomde> but the servo valves are pretty slow which is a big pole in a nasty place
[10:07] <eroomde> so it will take quite a lot of testing and analysis to design it and tune it
[10:07] <SpeedEvil> Large injectors for diesel engines have been used IIRC
[10:07] <eroomde> yeah that's quite a common thing to do
[10:07] <eroomde> some third thing to kick it off
[10:07] <eroomde> usualy called a 'hypergolic slug' though i guess it's not quite in this case
[10:08] <eroomde> but again that's big faff to reset between tests
[10:08] <SpeedEvil> Indeed.
[10:08] <eroomde> it's actually very non-trivial to clean down the injectors then load a specific amount of a third substance into a portion of one of the injectors
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[10:09] <SpeedEvil> I know - I was basically relying on a sryinge to pump a known quantity into the pipework, with teh valves off
[10:09] <SpeedEvil> - at least on paper
[10:09] <eroomde> it's always ground handling and human interface issues that people ignore in the design 'because this is aerospace' and infact it's about the most important thing, i think
[10:10] <SpeedEvil> If you are deeply throttling the engines in this sort of app, you really, really want to be able to relight them 'properly' though.
[10:10] <eroomde> indeed
[10:10] <eroomde> we've got 5:1 throttling on this engine too
[10:10] <eroomde> on the horizontal tests
[10:10] <eroomde> which is v deep
[10:10] <SpeedEvil> And actually turning them off for periods may be considerably more efficient in some cases.
[10:10] <SpeedEvil> Nice!
[10:10] <eroomde> so yeah, we do need to find a way
[10:11] <SpeedEvil> Air lighting is of course handy for reuse in multistage :)
[10:12] <eroomde> here you go: http://i.imgur.com/diIUF.png
[10:12] <eroomde> so that's thrust vs the commanded position to the n20 and ipa servos
[10:12] <cuddykid> and the thunder starts again!
[10:12] <eroomde> so you can see the engine is reasonably controllable and behaves quite nicely
[10:12] <eroomde> for something made of leftovers and hobby servos anyway :)
[10:13] <SpeedEvil> Are uyou suffering from the propellant tanks depressurising too?
[10:13] <eroomde> but you can also obviously see the effect of tank pressure reducing
[10:13] <SpeedEvil> :)
[10:13] <eroomde> yes indeed - good spot :)
[10:13] <eroomde> hence the desire to close the loop on the throttle servos by putting injector pressures into the controller
[10:14] <SpeedEvil> How much are you ablating?
[10:14] <SpeedEvil> - what life
[10:14] <eroomde> about 90s
[10:14] <eroomde> we estimate
[10:14] <eroomde> at full throttle
[10:14] <SpeedEvil> Not bad at all
[10:14] <eroomde> but the next version of this engine is regen anyway
[10:14] <cuddykid> daveake: are you free any time in the latter part of next week? - I've asked David to see if he can get me permission as winds look better (even though way off)
[10:14] <SpeedEvil> About what you want for a first stage to take you out of the thick atmosphere, and get supersonic for teeny rockets
[10:14] <eroomde> just trying to play whack-a-mole interate on the entire system
[10:14] <eroomde> iterate*
[10:15] <eroomde> SpeedEvil: yes indeed
[10:15] <SpeedEvil> iterate-iterate-boom
[10:15] <eroomde> of indeed for decent microgravity experiments
[10:15] <SpeedEvil> yep
[10:15] <eroomde> there's often an acceleration constraint on the experiments
[10:16] <eroomde> so thse big 30G sounding rockets are no good, even though you'll get a few mins of 0G after burnout
[10:16] <SpeedEvil> A couple of 90s capable stages with the first throttleable can get you quite high indeed.
[10:16] <SpeedEvil> even for teeny rockets.
[10:16] <eroomde> so we're thinking just keep a steady 2G say, all the way out of the atmosphere, with active
[10:17] <SpeedEvil> For small (sub 5 ton GLOW) transonic drag is painful.
[10:17] <SpeedEvil> At least according to modeling I did ages ago.
[10:18] <SpeedEvil> Accellerating hard to mach 0.8, then sustaining till you hit ~20-30km, before accellerating again saves fuel.
[10:18] <SpeedEvil> Even with the added gravity loss.
[10:18] <fsphil> why not launch from a high altitude aircraft. is it a weight thing?
[10:20] <eroomde> SpeedEvil: sounds v sensible
[10:21] <SpeedEvil> You can - almost get down to orbital capable being something you can carry - if you don't try to fight the drag too much. Certainly unfueled.
[10:22] <eroomde> just more faff
[10:22] <SpeedEvil> yeah
[10:22] <SpeedEvil> It's a hell of a lot simpler if your rocket weighs over a thousand tons. :)
[10:22] <eroomde> or if your rocket is also an aircraft :)
[10:22] <jcoxon> ping UpuWork
[10:23] <SpeedEvil> :)
[10:23] <UpuWork> pong
[10:23] <UpuWork> hi jcoxon
[10:24] <jcoxon> RGS are fully booked
[10:25] <UpuWork> Ah thats a pity
[10:25] <UpuWork> Still waiting on on NG to come back to us ?
[10:25] <jcoxon> they suggested unique venues of london
[10:25] <jcoxon> yeah they never replied
[10:25] <jcoxon> i might poke them
[10:25] <UpuWork> yeah give them a poke
[10:27] <UpuWork> thats a lot of venues
[10:27] <UpuWork> london zoo :)
[10:29] <UpuWork> Science Museum
[10:30] <eroomde> is this for conf?
[10:30] <jcoxon> yeah
[10:30] <eroomde> hmm
[10:31] <eroomde> this is the nearest we got to lighting the rocket yesterday (sparks are just from igniter building up the chamber pressure)
[10:31] <eroomde> http://i.imgur.com/o7QGK.jpg
[10:34] <SpeedEvil> Is that a gimbal, or a big linear bearing for a strain guage?
[10:34] <SpeedEvil> On the side
[10:34] <eroomde> on the right hand side is a linear actuator
[10:35] <eroomde> the black carbon fibre tube thingamie
[10:35] <SpeedEvil> For any particular reason, or just because it's nice to test multiple things with one rig?
[10:36] <eroomde> yes we're testing gimballing
[10:36] <eroomde> the engine was going to be gimabllling around if it lit
[10:36] <eroomde> that was part of the potted test sequence
[10:36] <eroomde> http://www.flickr.com/photos/69676024@N07/7432603668/in/photostream/
[10:36] <eroomde> they are them ^
[10:36] <eroomde> homemade
[10:36] <SpeedEvil> I assume t:w is bad, as not much weight reduction has been done?
[10:37] <eroomde> oh totally uninterested in t:w for this
[10:37] <eroomde> it's a lunar lander
[10:37] <SpeedEvil> Ah.
[10:37] <SpeedEvil> I see.
[10:37] <eroomde> it just need to be able to go up
[10:37] <eroomde> so it's like 1.3:1 at full thorrtle
[10:37] <eroomde> throttle*
[10:37] <SpeedEvil> :)
[10:38] <eroomde> then regen engine will be quite a lot more powerful though
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[10:38] <eroomde> we also want to be able to make fibre-wound tanks in-house
[10:38] <eroomde> as the current ones are needlessly heavy
[10:38] <SpeedEvil> Again IPA/NO?
[10:38] <eroomde> yeah probably
[10:38] <SpeedEvil> IPA is nice for regen
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[10:39] <eroomde> they're both nice really
[10:39] <eroomde> easy to handle, storable, quite cheap
[10:43] Action: SpeedEvil treats himself to googles latest offering.
[10:43] <SpeedEvil> On the basis that I can sell some stuff.
[10:44] <SpeedEvil> I find it annoying that there is a lack of microSD - but meh
[10:45] <fsphil> I'm still holding out for something that can run a proper distro
[10:45] <daveake> cuddykid: Yes, should be
[10:47] <SpeedEvil> fsphil: yeah. :/
[10:49] <fsphil> there's one coming that runs KDE
[10:49] <fsphil> though should be able to fix that
[10:51] <SpeedEvil> Indeed - I'm if not buying that - at least donating some to the project.
[10:52] <fsphil> just hope it doesn't turn into another openmoko
[10:52] <fsphil> "e are very pleased to tell you that you can now pre-order yourRaspberry Pi.
[10:52] <fsphil> Current lead-times for new orders are in August"
[10:53] <SpeedEvil> fsphil: Or nokia.
[10:53] <fsphil> urg, yea
[10:53] <fsphil> that had even more potential
[10:55] <fsphil> maybe the next rpi will be in that form factor
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[10:57] <SpeedEvil> It'll cost over a million to get a sane semi-decent phone.
[10:58] <SpeedEvil> Negecting software development
[11:02] <fsphil> indeed
[11:03] <eroomde> SpeedEvil: to answer you q more thoroughly (sorry got distracted) re: http://i.imgur.com/o7QGK.jpg
[11:03] <eroomde> there is a load cell
[11:04] <eroomde> it's the big ali chink with the hole cut out on the left side of the rig, bolted at once end to the steel test stand (pyramidal structure) and at the other to the rocket bulkhead
[11:04] <SpeedEvil> Oh - that was quite obvious
[11:04] <SpeedEvil> should have noticed that :)
[11:04] <eroomde> then all the other cables coming off are from pressure transducers, doing to our datalogger that is out of shot
[11:05] <eroomde> there there are a few gopros dotted around
[11:05] <SpeedEvil> Looks good. (neglecting the lack of actual thrust)
[11:05] <eroomde> including the danger-gopro on the right
[11:05] <eroomde> they were the film crew's
[11:05] <eroomde> they're f-ing awesome though
[11:05] <eroomde> i want
[11:06] <SpeedEvil> :)
[11:06] <eroomde> also the film crew had this little handheld hdmi monitor that they could use to frame the gopros
[11:06] <SpeedEvil> Is that a ruggedised one?
[11:06] <eroomde> it was awesome!
[11:06] <eroomde> i want one of those too
[11:06] <eroomde> it's in its ruggesdised case yeah
[11:07] <eroomde> was this i think http://www.coollcd.com/lilliput-667gl-7-inch-oncamera-hd-lcd-field-monitor-w-hdmi-component-composite_p734.html?zenid=8164d5e9e15f7f370d6dbab25328ff10
[11:12] <fsphil> hdmi monitor would be cool
[11:12] <eroomde> yeah, really helpful for setting things up correctly
[11:12] <fsphil> did everything go well today?
[11:12] <eroomde> and not having to have a laptop to play back the video from a trial position
[11:13] <eroomde> no we stopped at 10pm yesterday
[11:13] <eroomde> we workd 9am monday to 8pm tuesday solidly, thanks to coffee, and 9am yesterday to 10pm yesterday
[11:13] <eroomde> and yesterday showed that we just need a rethink on ignition
[11:14] <eroomde> so we've told the tv crew to come back in like 2 weeks, which works for them too as they've loads of stuff going on atm anyway
[11:14] <eroomde> and then we can figure out the problems with clearer heads and machine up something proper
[11:15] <eroomde> i think we'll just go for some kind of gas torch going into the engine from the injector plate, with a spark of glow-plug to ignite it
[11:15] <eroomde> spark or glow*
[11:15] <eroomde> that technique works really reliably for big stuff
[11:16] <eroomde> infact i put exactly such a box on the test rig for the jet engine that is running skylon tests, because the old rolls royce viper engine ignition system was just poo
[11:16] <eroomde> http://www.bbc.co.uk/news/science-environment-17864782
[11:16] <eroomde> it's the grey box sticking out of helen's back
[11:16] <eroomde> just blast a really hot jet into the combustion chamber
[11:16] <SpeedEvil> plasma torch?
[11:18] <eroomde> considered
[11:18] <eroomde> bit noisy tho
[11:18] <eroomde> electricaly
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[11:56] <Laurenceb> #skylon-dev
[11:57] <eroomde> ?
[12:01] <SpeedEvil> :)
[12:03] <eroomde> oh i see
[12:03] <eroomde> well we're more talking about rockets
[12:04] <eroomde> which this being #highaltitude is all cool right :)
[12:04] <jcoxon> uhuh
[12:04] <eroomde> balloons are just a means to an end
[12:04] <SpeedEvil> Echo was a high altitude balloon too!
[12:04] <eroomde> there is that
[12:04] <SpeedEvil> And the Venera balloons.
[12:05] <kokey> yeah and other parts of the solar system or galaxy is also cool, no matter how to get there
[12:05] <fsphil> was gonna say, the venus balloons have to the the highest altitude ones so far :)
[12:05] <eroomde> also as a control engineer i never felt partiularly satisfied with balloons
[12:05] <eroomde> they're all just a bit dumb and passive
[12:05] <fsphil> and cheap :)
[12:06] <SpeedEvil> eroomde: Vacuum balloons are exciting!
[12:06] <eroomde> also that
[12:06] Action: SpeedEvil wants to make a vacuum balloon.
[12:06] <SpeedEvil> Oooh
[12:07] Action: SpeedEvil points to eroomde's comments above about making his own filliment wound tanks.
[12:07] <fsphil> if it wasn't for balloons I'd not be able to get anything above 20m .. I couldn't afford rockets
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[12:07] <SpeedEvil> A vacuum balloon would be an excellent test.
[12:07] <daveake> In my case it's the getting them back below 30m that's the challenge :p
[12:08] <kokey> casting a vacuum balloon out of lead should be easy
[12:08] <eroomde> i told you how to do that
[12:08] <eroomde> just have 10kg payloads like we do
[12:09] <fsphil> lol
[12:09] <eroomde> they make light work of a few small branches
[12:10] <SpeedEvil> Or go slightly bigger, and take out entire cars.
[12:10] <eroomde> i think a 10kg lump, if sufficienctly point and without chute, would do that
[12:10] <eroomde> pointy*
[12:10] <SpeedEvil> The NASA launch I meant
[12:11] <daveake> Yeah my payloads or much, much too light :)
[12:11] <daveake> are*
[12:11] <eroomde> perhaps a cutdown between payload and chute though
[12:11] <eroomde> might help
[12:11] <eroomde> that you can ping from nearby
[12:11] <daveake> yes, I'm think of doing just that
[12:11] <daveake> I've got some "easyradio" modules which would make it, well, easy
[12:11] <fsphil> I wish I'd done that. would have saved so much hassle
[12:12] <fsphil> rfm22b would do the same job
[12:12] <daveake> yep
[12:12] <fsphil> I'd be interested to see how you rig it all up
[12:13] <daveake> Well, an easyradio + arduino + battery + BIIIIG red button at one end
[12:13] <daveake> and similar but nichrome and FET at the other
[12:13] <daveake> Then some comms that can only possibly happen when that button gets pressed :)
[12:14] <fsphil> 0-0-1-destruct
[12:14] <daveake> T-R-E-E
[12:15] <fsphil> lemming mode, enabled
[12:15] <fsphil> "Oh no!"
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[12:16] <cuddykid> don't suppose anyone on here has a pair of MICC wire strippers?
[12:17] <kokey> yeah sure, want me to DCC you mine?
[12:17] <kokey> actually, does anyone still know what DCC is? ;-)
[12:18] <fsphil> direct client connection
[12:18] <kokey> also digital compact cassette
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[12:20] <fsphil> ah I remember those
[12:20] <fsphil> never seen one in real life
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[12:20] <kokey> neither have I
[12:20] <eroomde> !goofle micc+wire+strippers
[12:20] <eroomde> fuck
[12:21] <kokey> and I was quite keen on the technology, I somehow thought it had a better chance than Sony's MD
[12:21] <eroomde> well no anyway
[12:22] <Laurenceb> my leiton.de flexi pcbs have arrived
[12:22] <Laurenceb> also they send free sweets
[12:23] <eroomde> oh cool
[12:23] <eroomde> whatcha flexing?
[12:23] <Laurenceb> medical sensors
[12:24] <Laurenceb> leiton are relatively cheap
[12:24] <Laurenceb> as in <£300 MOQ
[12:24] <Laurenceb> best i could find in UK was £6K MOQ
[12:24] <eroomde> gold phoniex do it for about £200 iirc
[12:25] <Laurenceb> polyamide?
[12:25] <Laurenceb> nice
[12:25] <eroomde> http://www.goldphoenixpcb.com/singlepage.php?tg=specialprice
[12:25] <Laurenceb> for some reason there is no solderstop :(
[12:25] <eroomde> flex board on the right
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[12:25] <eroomde> dunno if it exactly meets your spec or what
[12:26] <Laurenceb> maybe
[12:26] <fsphil> ooh, some lighting heading our way
[12:26] <eroomde> the question mark gives you the spec
[12:26] <Laurenceb> but Leiton coated it with 3M-91022 on the back
[12:26] <eroomde> fsphil: lightning map?
[12:26] <Laurenceb> which is very handy for me
[12:26] <Laurenceb> im sure i ordered a soldewr stop layer tho :(
[12:27] <Laurenceb> i may try gold phoenix and coat it myself in future
[12:29] <Laurenceb> thanks for the link
[12:29] <eroomde> np
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[12:31] <fsphil> eroomde: http://www.blitzortung.org/Webpages/index.php?lang=en&subpage_0=12
[12:31] <fsphil> it's about 40km away atm
[12:32] <daveake> Latest Canon A490 just arrived. Just over £10 all-in on ebay
[12:32] <Laurenceb> http://www.blitzortung.org
[12:32] <Laurenceb> sounds like a nazi site
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[12:33] <Lunar_Lander> hello
[12:33] <Lunar_Lander> what capacity does a decoupling capacitor need to have for a 3.3V system?
[12:34] <daveake> Wrong question :)
[12:34] <Laurenceb> holy unanswerable question batman
[12:34] <eroomde> 2 farads though is the answer
[12:34] <Lunar_Lander> XD
[12:34] <eroomde> you might want to get onto steve about his stock of 3kg balloons
[12:34] <Laurenceb> between 2pF and 2F
[12:35] Action: UpuWork pokes Laurenceb
[12:35] <Lunar_Lander> 22 pF are too less my professor said
[12:35] <eroomde> Laurenceb: one of the first rules about being a successful design engineer, which hopefully you'll learn when you become as experienced as me one day, is that it doesn't make sence to specifiy things too tightly
[12:35] <Lunar_Lander> hello UpuWork
[12:35] <UpuWork> hi Lunar_Lander
[12:35] <UpuWork> 100nF
[12:35] <Lunar_Lander> thanks
[12:35] <Lunar_Lander> ceramic right?
[12:35] <Laurenceb> lol
[12:36] <eroomde> Laurenceb: yep ceramic is fine
[12:36] <daveake> 100nF ceramic close to the component
[12:36] <UpuWork> yeah put them as close as you can to the power on the component
[12:36] <eroomde> also have sime bigger smoothing caps by the 3.3V source
[12:37] <eroomde> they can be polarised, eg aluminium electrolytic or tantalum
[12:37] <Lunar_Lander> that I got, I got from the regulator datasheet how to put them up
[12:37] <Lunar_Lander> yea
[12:37] <eroomde> cool
[12:37] <Lunar_Lander> one 100 nF and IIRC a 0.1 uF on the other side
[12:37] <Lunar_Lander> and that one is polarized
[12:37] <daveake> So the elect or tant is for long current demands; the ceramics for the short spikes
[12:37] <fsphil> lights are flickering, lightning must be getting closer
[12:38] <eroomde> it doesn;t have to be polarised by definition, it's just that capactiros of that size almost always are polarised
[12:38] <daveake> Stick a 2F on the mains
[12:38] <eroomde> just the way the chemsistry/phsyics works
[12:38] <daveake> That'll fix it
[12:38] <Lunar_Lander> daveake, xD
[12:38] <Lunar_Lander> true eroomde
[12:39] <eroomde> Laurenceb: did you ever look at the sort of data rate throughput you could get with dma on the cortex m4?
[12:39] <Laurenceb> not yet
[12:39] <Lunar_Lander> but is it true that tantalum capacitor can fail rather spectularly?
[12:39] <eroomde> if so, does 30MBit sound reasonable?
[12:39] <Laurenceb> one of my many jobs to complete
[12:39] <Lunar_Lander> *s
[12:39] <eroomde> oh ok not to worry
[12:39] <Laurenceb> Bit?
[12:39] <Laurenceb> yes certainly id say
[12:39] <daveake> Tants make a unique smell when you kill them
[12:39] <eroomde> Laurenceb: cool
[12:39] <Laurenceb> the dma is improved over F1
[12:40] <eroomde> just wondering about running the 200ksps, 16bit 8ch adc at full pelt
[12:40] <eroomde> for some highly dynamic stuff
[12:40] <Laurenceb> much better memory crossbar
[12:40] <daveake> You'll find out if you get the polarity wrong or exceed the max voltage
[12:40] <eroomde> wear goggles ^
[12:40] <Lunar_Lander> xD
[12:41] <daveake> For tants? IME they just smoke. Electrolytics however ....
[12:41] <Lunar_Lander> yea
[12:41] <Lunar_Lander> they may burst, right?
[12:42] <daveake> http://www.youtube.com/watch?v=D-RZ5RTAdSg
[12:42] <daveake> http://www.youtube.com/watch?v=8zVbbo0x-fw
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[12:44] <Lunar_Lander> XD!
[12:45] <Lunar_Lander> OK thank you
[12:45] <Lunar_Lander> see you later!
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[13:00] <fsphil> nice, it finally arrived. two nice rumbles
[13:02] <fsphil> I'm gonna have to have a holiday in the US sometime, where there's a lot of thunderstorms
[13:05] <daveake> Low Altitude BA - http://taxi.ba.com/
[13:09] <SpeedEvil> Tants go bang sometimes.
[13:09] <SpeedEvil> Enthusiastically
[13:09] <daveake> :)
[13:09] <daveake> Hopefully LL will have both eyes intact when he returns later
[13:11] <SpeedEvil> Mindbogglingly lame.
[13:11] <SpeedEvil> :)
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[13:19] <kokey> so, a dyslexic joins #highaltitude, and ask if there are any people from Svalbard on the channel
[13:20] Action: kokey gets his coat
[13:21] <eroomde> nowadays it's usually someone joining high altitude to ask which end of the battery is +ve
[13:21] <eroomde> grumble grumble olden days get off my lawn
[13:22] <fsphil> it's the flat end isn't it?
[13:23] <daveake> Hence the term "flat battery" when both ends are flat
[13:23] <eroomde> i guess there's no potential difference between them if they're both flat
[13:24] <number10> I was trying to work out how much voltage could be induced in a tracker from the magnetic field of a over head transmission line
[13:25] <daveake> You could have measured that last time
[13:25] <SpeedEvil> Essentially zero compared with tangling in it, and being directly connected
[13:25] <number10> lol, wasnt near enough and was only 11kv lines
[13:25] <daveake> I prefer 10kV for the comic opportunities
[13:25] <number10> thanks
[13:25] <SpeedEvil> Magnetic field largely cancels.
[13:27] <number10> people a lot more cleverer than me did some fag packet calculations - assume 1000A at 0.1m worked out 0.6mv for a 10sq cm circuit loop
[13:29] <SpeedEvil> Sounds ballpark.
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[13:36] <number10> I had no idea really - was just wondering if payload landed across power lines would there be any effect on a cutdown circuit
[13:40] <Darkside> http://davca.deviantart.com/#/d5587ad
[13:40] <Darkside> goddamnit, i got beaten
[13:41] <Darkside> they got the space part wrong though
[13:42] <fsphil> I'm surprised it took so long
[13:42] <fsphil> you could do a much better one than that though
[13:43] <Darkside> mm
[13:43] <Darkside> just time and money
[13:43] <fsphil> it's not well placed in the frame
[13:43] <Darkside> yesh its very badly done
[13:43] <Darkside> we could use the fishing line rig we used for the yoyo
[13:43] <Darkside> that would work well, and the supports are effectively invisible
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[14:15] <DanielRichman> k so yesterday i switched griffonbot off due to some random spammy tweets with #ukhas in them. Opinion on switching it back on?
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[14:25] <fsphil> go for it
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[14:30] <nick_> Hmm
[14:30] golddragon24 (~anonymous@24-107-10-126.dhcp.stls.mo.charter.com) left irc: Quit: golddragon24
[14:30] <nick_> Something weird just happened.
[14:30] <nick_> I have my nick set to enforce, but yet I logged on and someone else was using it.
[14:31] <nick_> I ghosted them and then they reconnected automatically a couple of times until I beat them to the chase.
[14:31] <nick_> Shouldn't nickserv make a nick unavailable if enforce is set?
[14:33] <fsphil> they get 30 seconds then their nick should be changed automatically
[14:35] <nick_> Yeah
[14:35] <nick_> And yet when I logged in they'd been idle for 10 mins
[14:36] <fsphil> nickserv on holiday perhaps
[14:36] <nick_> When I changed to this nick I still got the message saying I had 30s to identify or I'd be kicked off it
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[14:38] <fsphil> very odd
[14:39] <nick_> Yes
[14:39] <nick_> I often think freenode is stupid
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[14:48] Action: griffonbot is GriffonBot [http://github.com/ssb/griffonbot]
[14:48] Action: griffonbot is following: #ukhas #cusf #atlasballoon #projecthorus #HABE2
[14:48] Action: griffonbot is tracking emails sent to ukhas@googlegroups.com
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[14:52] <G0DJA> I discovered that the Ireland Amateur Radio Club is also a ballooning club the other day... http://i1061.photobucket.com/albums/t471/G0DJA/Friedrichshafen%20-%20Ham%20Radio%20Societies%20Stands/Photos_067.jpg
[14:53] <fsphil> no mistaking that club
[14:58] <daveake> Quiet stand. Doesn't look like their membership is ballooning
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[15:02] <nigelvh> ba dum psh
[15:02] <Lunar_LanderU> xD
[15:02] <Lunar_LanderU> hi nigelvh
[15:02] <nigelvh> Howdy
[15:04] <Lunar_LanderU> how are you?
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[15:08] <nigelvh> Doing well. Dealing with idiots at work who think they know my job better than I do.
[15:08] <Lunar_LanderU> oh
[15:09] nv1k (cfbfb128@gateway/web/freenode/ip.207.191.177.40) joined #highaltitude.
[15:09] <nigelvh> It seems to be frequently the case in IT. People take care of their home computers, so they automatically think that running a network and a pile of servers is just the same.
[15:09] <Lunar_LanderU> oh
[15:09] <fsphil> I used to be that person, long time ago :)
[15:09] <Lunar_LanderU> xD
[15:09] <fsphil> then I tried, and learned the error of my thinking
[15:10] <Lunar_LanderU> look what virustotal thinks about an opamp datasheet from sparkfun
[15:10] <Lunar_LanderU> https://www.virustotal.com/file/54a794307556fce578e973e4a6eedb882f7ab13d56422f16340c5240901bd7b8/analysis/1340896127/
[15:10] <nigelvh> Good plan fsphil. Sometimes I'm really tempted to tell them, OK, I'm going on vacation for a month, make it work.
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[15:13] <nigelvh> Then there's a few of them who know they don't do my job, but manage to stumble into interesting problems. One of them managed to crash our fileserver by creating an infinitely recursive copy script that exceeded the windows path length.
[15:14] <fsphil> in my case I learned that a faster cpu doesn't actually make a better server. the machine I built up was actually slower in the end
[15:14] <nigelvh> Another one of them messed up a different server by filling the drive with a few hundred thousand tiny files. There was space left, but the filesystem couldn't keep track of all the files.
[15:14] <Lunar_LanderU> yea
[15:14] <Lunar_LanderU> nigelvh: what do you think of the scan result?
[15:14] <nigelvh> Yeah, the hardware is only one aspect.
[15:15] <nigelvh> I'd say it's fine. Nothing else picked anything up, and the one that did is using the heuristics rather than a real definition, so they're much more prone to false positives.
[15:16] <Lunar_LanderU> yea
[15:16] <Lunar_LanderU> thanks
[15:16] <nigelvh> yep
[15:17] <nigelvh> There's also the random emails/calls in the middle of the night saying "SHIT'S BROKEN"
[15:17] <nigelvh> Like last night.
[15:17] <nigelvh> Anyway, the joys of being an IT guy.
[15:18] <Lunar_LanderU> xD
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[15:18] <UpuWork> faster CPU ? bah disk disk and more disk
[15:18] <fsphil> yea it turned out to be the interface
[15:18] <fsphil> the old server had a really expensive scsi controller
[15:18] <fsphil> and expensive but small disks
[15:18] <Lunar_LanderU> well I'll go to my lab now
[15:19] <Lunar_LanderU> continuing to work on the sensor board
[15:19] <UpuWork> laters Lunar
[15:19] <fsphil> mine was just ide
[15:19] <Lunar_LanderU> when I run the DS18B20 at 3.3V, is the 4.7 kOhm resistor still OK?
[15:19] <UpuWork> 15k SAS disks are super, especially in a RAID 10 with a decent controller
[15:19] <UpuWork> yes Lunar
[15:19] <Lunar_LanderU> thanks
[15:20] <Lunar_LanderU> cu later
[15:20] <daveake> Agree re disks
[15:20] <nigelvh> Yep. also loud though
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[15:20] <daveake> I just have a single SAS drive in my desktop PC
[15:21] <nigelvh> At my last place one of they guys fitted a DB server with a pile of the Intel SSDs on a raid controller, that thing was lightning quick.
[15:21] <UpuWork> I've got some full sized Hitatchi 15k drives lying about
[15:22] <UpuWork> they are ok but HP charge lol money for SSD in servers £1200 per drive in some cases
[15:22] <nigelvh> Yeah, you need to buy them aftermarket
[15:22] <UpuWork> but they don't have SAS interfaces on the after market ones
[15:22] <nigelvh> We never bought "brand name" servers. We always used a local place to build our stuff.
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[15:23] <UpuWork> gave up making Intel "white box" servers
[15:23] <UpuWork> they just suck badly
[15:23] <UpuWork> moved to HP and never looked back
[15:23] <nigelvh> Place I'm at now is pretty much all dells. Mostly in a big blade enclosure and running a ton of VMs on them.
[15:24] <kokey> at rackspace when I worked there, most of the servers were white box clones
[15:24] <kokey> but they built them in numbers to could figure out what parts worked, and what parts didn't
[15:24] <kokey> turned out to be asus motherboards, kingston ram, seagate hard drives, intel nics... but this was back in 2004
[15:25] <UpuWork> Rackspace use Dell now at least they did when I saw them putting 2 racks worth of kit in the data center we use
[15:25] <kokey> dell for servers, unless you only run a few, were a pretty bad idea until recently
[15:25] <UpuWork> 96 1U dells
[15:25] <kokey> fortunately dell now makes ranges that compete with the HP servers, where they keep chips the same inside of generations of models
[15:26] <kokey> rackspace used dell when I worked there too, I'd say for about 10% of the servers
[15:27] <fsphil> all Dell here
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[15:27] <fsphil> they do seem to have random parts failing every so often
[15:27] <fsphil> we've a dell engineer coming out next week to replace the psu in two of our boxes
[15:27] <UpuWork> next week ?
[15:27] <nigelvh> Hmm. Ours seem pretty reliable.
[15:28] <UpuWork> HP turn up tommorrow at the latest
[15:28] <fsphil> yea- they've not failed, the firmware is randomly reporting a power failure
[15:29] <fsphil> we've had them appear the same day for hdd failures
[15:30] <nigelvh> Just depends on the contract you have.
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[15:32] <nv1k> \msg NickServ identify itsmestupid
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[15:33] <fsphil> not anymore
[15:35] <eroomde> just been having a look at microtransat competition
[15:35] <eroomde> wind powered autonomous crossing of the atlantic
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[15:36] <fsphil> I've been watching that for a while
[15:36] <fsphil> complicated stuff
[15:36] <eroomde> it looks fascinating, our sort of tech but with a bit more hardware and control
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[15:36] <eroomde> no one has amanaged yet from the looks of it
[15:36] <eroomde> id like to have a go
[15:36] <fsphil> there's only been one launch so far
[15:36] <eroomde> just something small that i dont mind loosing
[15:37] <fsphil> it got lost somewhere of the west coast of ireland
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[15:38] <SpeedEvil> eroomde: Get out a large bit of polystyrene, cover with cement.
[15:38] <SpeedEvil> eroomde: Worked for the japanese.
[15:38] <eroomde> this has to go east to west
[15:38] <eroomde> so presumably needs some sort of intelligence to tack
[15:39] <SpeedEvil> Trained dolphin.
[15:39] <eroomde> i reckon a fixed wing sail on a rotating mast, a rudder, and a long ballasted keel that will cause it to self-right
[15:39] <eroomde> then its a software problem
[15:40] <SpeedEvil> yup.
[15:40] <SpeedEvil> Add solar, and _lots_ of sealant, and you're golden.
[15:40] <eroomde> yes indeed
[15:41] <eroomde> ive been wating to play with solar power managemrnt anywa
[15:42] <SpeedEvil> Plus, it's a good cover for other things.
[15:42] <SpeedEvil> 'You mean there was an unauthorised rocket launch, and a new satellite, just after we lost contact with our vehicle?' 'What are the chances of that?'
[15:43] <nick_> I wonder how prototype friendly you could make it.
[15:43] <nick_> Presumably you'd want the ability to do a code update mid transit?
[15:44] <fsphil> that's not allowed (for the microtransat)
[15:44] <fsphil> it's allowed to receive weather data and act on that, but it can't have any remote control at all
[15:44] <jiffe98> so before I do my next launch I'm trying to do distance testing of my rig, I have
[15:45] <nick_> Is that remote control?
[15:45] <jiffe98> a T2-301 transmitter at 5 watts, kenwood tm-d700 receiver and I'm getting about 30 miles line of sight off that but no further
[15:46] <jiffe98> does that sound about right?
[15:46] <jiffe98> 5 watts seems like it should travel farther
[15:46] <eroomde> nick_: i think that would count as remote control
[15:47] <eroomde> but following your prototype logic, instead of entire dinghies and expensive big actuators, i would just try and make it as simple as possible
[15:47] <eroomde> and afford to loose a few and keep trying
[15:47] <eroomde> and wee
[15:47] <nick_> Ah, it's against the rules to transmit software updates :(
[15:47] <eroomde> yes
[15:48] <eroomde> but again, a solid tacking algorithm, good power management and self-righting and i think you might be in with a chance
[15:48] <eroomde> even if its not nearly as fast as the bigger ones
[15:49] <nick_> I wonder if you could outfit a kayak to do it.
[15:49] <nick_> Ah
[15:49] <nick_> The one boat looks pretty small
[15:50] <nick_> 1.4m
[15:51] <nick_> eroomde: there's a boat pond in the park next to where I live.
[15:51] <nick_> They're usually playing with boats that aren't much smaller than that.
[15:51] <eroomde> nice
[15:51] <eroomde> thats the sort of size i was thinking
[15:51] <nick_> (at last for the sailing boats)
[15:51] <eroomde> 1-2m long main hull with outriggers
[15:52] <nick_> I wonder how much route planning information they load it up with.
[15:53] <nigelvh> 10: Follow compas
[15:53] <eroomde> if its unobstructed, just head to a landing spot on the other side
[15:53] <nigelvh> 20: avoid tankers
[15:54] <eroomde> u could do clever things like tell it night to fight tides
[15:54] <eroomde> not
[15:54] <nick_> I don't know if there are better routes across or anything
[15:55] <nigelvh> Well, There are reasonably well mapped surface currents. Finding which ones are useful is another story.
[15:55] <fsphil> the weather data has to come from one of the regular HF weather services, it can't come from yourself
[15:55] <nick_> Or whether you'd do better to hibernate overnight.
[15:56] <eroomde> nah just keep going :)
[15:56] <eroomde> if power budget allows
[15:56] <fsphil> I was going to launch something myself but it turns out I'm rubbish at boat making
[15:57] <eroomde> yes thats new to me too
[15:57] <eroomde> might buy a hull for a first attempt
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[15:57] <fsphil> got the pv panels, battery and computer
[15:57] <fsphil> that's about it :)
[15:58] <eroomde> ltc just released a cell snd battery power management chip
[15:58] <eroomde> which is cool
[15:58] <eroomde> tho the power tracking algorithm wasnt thenbest
[15:58] <eroomde> but might be good enough which is all you need
[15:58] <fsphil> I've a little ebay charge controller
[15:59] <fsphil> I couldn't figure out how to make the sail
[15:59] <fsphil> one that could survive the atlantic anyway
[16:00] <fsphil> some kind of vertical wing, one solid piece
[16:00] <fsphil> with a simple motor to turn it
[16:00] <fsphil> and a way to lock it during storms
[16:01] <fsphil> jonathan (the guy who launched projectcirrus with me a few years ago) suggested a balloon/kite combo
[16:01] <nigelvh> Would you rather lock it during a storm, or let it "float" like a wind vane?
[16:02] <eroomde> locking comes for free if you use worm gears
[16:02] <eroomde> ie you worm can turn the mast pinion but the pinion cannot turn the worm gear
[16:02] <nigelvh> Good point. I like that idea.
[16:02] <fsphil> ahh
[16:03] <eroomde> but it might impact the dynamic response a bit
[16:03] <eroomde> equally, might still be good enou
[16:03] <fsphil> some way to measure the pressure on the sail might be useful
[16:04] <fsphil> and the bit that goes underwater
[16:04] <eroomde> yeah indeed
[16:04] <fsphil> aquasail?
[16:04] <eroomde> keel
[16:04] <fsphil> I've no idea what they're called now that I think about it
[16:04] <fsphil> that's it
[16:04] <eroomde> yeah you could put a strain guage in place
[16:04] <eroomde> turn the sail into the wind if the strain is too high
[16:05] <eroomde> but equally, might just be strong enough to not be an issue
[16:05] <nigelvh> I would go that route.
[16:05] <nick_> I've been thinking of making an autonomous boat for the pond or a canal, not the atlantic though.
[16:05] <nigelvh> Just make it beefy.
[16:05] <eroomde> the issue would be prevening capsize
[16:06] <fsphil> put the batteries into the keel
[16:06] <nigelvh> Or a weight
[16:06] <fsphil> or make the keel and sail interchangable
[16:06] <fsphil> have it work both ways
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[16:06] <nigelvh> Easy to test. Put it in upside down, does it right itself?
[16:06] <SamSilver> ooh brainstorming
[16:07] <eroomde> i think both ways would be faff
[16:07] <eroomde> u need an anemometer and wind vane
[16:07] <fsphil> yea
[16:07] <fsphil> not gonna work
[16:07] <eroomde> having a submerged one would be really draggy :)
[16:07] <fsphil> it would just end up flat on the surface
[16:08] <nick_> Don't you need to have some measurement of the wave directionn to avoid capsizing too?
[16:08] <nick_> You want to sail into the waves.
[16:08] <nigelvh> Just build it to be impossible to capsize
[16:08] <eroomde> do you really though?
[16:08] <nick_> Make it a submarine!
[16:08] <nigelvh> Or totally sealed and have a weight off the bottom.
[16:08] <nick_> I'm not sure how submarines can sail though...
[16:08] <fsphil> nick_: wings
[16:09] <eroomde> id just make it passively robust and actively trying to make headway
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[16:09] <fsphil> someone made one, it drops and the wings push it forward
[16:09] <fsphil> then it tilts the wings the other way, rises back up and that propells it forward again
[16:09] <fsphil> so it's just constantly rising and diving
[16:09] <fsphil> really cute idea
[16:09] <nick_> OK
[16:10] <SamSilver> fsphil: i am trying to find a link for that
[16:10] <fsphil> can't remember what it's called now
[16:10] <nigelvh> I recall the device you're referencing.
[16:10] <SpeedEvil> density hydroplane?
[16:10] Action: SpeedEvil forgot too
[16:10] <SamSilver> what fsphil was describing crossed a large ocean
[16:10] <eroomde> some ex yahoo millionare was funding it right
[16:10] <SpeedEvil> There are proposals to do that with airships too
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[16:10] <nick_> Oh
[16:10] <SpeedEvil> but they need to be a _lot_ bigger
[16:10] <nick_> the rules say only wind power.
[16:10] <SamSilver> jcoxon might know the vehicle
[16:10] <fsphil> http://blog.marport.com/2009/04/30/autonomous-underwater-vehicle-attempts-to-make-the-first-trans-atlantic-crossing/
[16:11] <SamSilver> we spoke about it a few times
[16:11] <SamSilver> wd fsphil
[16:11] <SamSilver> oh that is a different one
[16:12] <fsphil> yea the one I remember had straight wings
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[16:15] <nigelvh> I also remember it being a bit fatter. Kinda like a photon torpedo.
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[18:55] <cuddykid> balloon has arrived :D - thanks RocketBoy
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[19:36] <Lunar_Lander> hello
[19:37] <nick_> hi
[19:39] <eroomde> hi
[19:41] <eroomde> i'm watching the repeat on bbc4 of 'Woonders of the Surler System'
[19:42] <eroomde> it was a good series
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[19:43] <Lunar_Lander> ?
[19:43] <Upu> Clouds, just brilliant, how do they weeerk ?
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[19:44] <Lunar_Lander> XD
[19:44] <Lunar_Lander> hi Jessica_Lily
[19:44] <Laurenceb_> staaarrzzz
[19:44] <eroomde> we're all made of doost
[19:44] <Lunar_Lander> we just talk about brian cox as far as I understand it
[19:44] <Upu> indeed Lunar you are correct
[19:44] <Jessica_Lily> sup
[19:44] <eroomde> (people with northern accent reading my attempts to writing in a north accent - what is the result? northern squared?)
[19:45] <Upu> lol
[19:45] <Lunar_Lander> xD
[19:45] <Upu> universe collapses on itself
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[19:46] <eroomde> i can't even imagine it
[19:47] <nick_> Brain Cox doesn't seem to have many fans within physics.
[19:47] <Laurenceb_> hehe
[19:47] <eroomde> Brian*
[19:47] <Laurenceb_> his programs are quite content free
[19:48] <eroomde> they're probably fascinating if you aren;t familiar with the stuff
[19:48] <daveake> Must say I probably had more "aaah"'s in that video that eroomde linked to last week than all of BC's progs together
[19:48] <eroomde> but yeah if you have done some science of know any maths, having stuff described in hyperbolic english, where maths is the much more beautiful language, is damn frustrating
[19:48] <eroomde> which video did i like to last week?
[19:48] <eroomde> show me :)
[19:49] <Lunar_Lander> well I have to say that Stargazing Live and that quantum mechanics lecture wasn't content free
[19:49] <daveake> or maybe not you :)
[19:49] <fsphil> I liked the quantum lecture he did
[19:49] <daveake> Let's see if I can get my memory cells working
[19:49] <nick_> (personally I also think that there's a fair amount of resentment of his position)
[19:49] <fsphil> in particular his description of why electrons have the distance they do from the center of an atom
[19:49] <nick_> Permanent positions are very rare...
[19:50] <daveake> Laurence Krauss
[19:50] <daveake> Maybe I read it elsewhere
[19:50] <Laurenceb_> nick_ his professorship?
[19:50] <nick_> yes
[19:50] <Laurenceb_> where is it?
[19:50] <Laurenceb_> i forgot
[19:50] <nick_> He got a professorship at a young age because of his outreach.
[19:50] <nick_> Manchester I think
[19:50] <nick_> Either there or Liverpool
[19:51] <Laurenceb_> ah
[19:51] <nick_> for a while he did physics and some outreach.
[19:51] <Laurenceb_> well my supervisor got a professorship at about 40, and knows next to nothing
[19:51] <Laurenceb_> but thats EEE
[19:51] <nick_> Then he seemed to just do flying around the world for pointless 10 second clips.
[19:51] <Lunar_Lander> yea Manchester
[19:52] <Lunar_Lander> OH SHIT you mean that he isn't worth it anymore?
[19:52] <Lunar_Lander> damn
[19:52] <nick_> What is one of the Es
[19:52] <nick_> ?
[19:52] Action: Lunar_Lander hits his head against the furniture
[19:53] <Laurenceb_> electrical and electronic eng
[19:53] <nick_> ok
[19:53] <Laurenceb_> im glad i dont have to ask for help often :P
[19:53] <Lunar_Lander> Upu, I got the 100 nF ceramic capacitors
[19:53] <Laurenceb_> his latest paper involved using traffic webcams to look at leave colour shifts across the country
[19:54] <Laurenceb_> *leaf
[19:54] <Lunar_Lander> by Cox?
[19:54] <Laurenceb_> no, my supervisor
[19:54] <Lunar_Lander> ah
[19:54] <Laurenceb_> can you see the problem with the idea?
[19:55] <Laurenceb_> hes published a paper on an automated weather dependant lighting conditions detector
[19:55] <Lunar_Lander> yea
[19:55] <Lunar_Lander> that is not high-level research
[19:56] <Laurenceb_> at least the university is good and i know what im doing so i dont care
[19:56] <Lunar_Lander> yea
[19:57] <nick_> (people also don't really like how he got his TV show. And everyone hates D:REAM
[19:57] <nick_> )
[19:57] <fsphil> I quite liked that song :p
[19:57] <Laurenceb_> i was offered a PhD at oxford but i prefer more engineeringy stuff
[20:00] <Laurenceb_> i realise now that but so many places are just doing daft stuff
[20:02] <nick_> It's quite annoying given the current funding cycle phase.
[20:03] <Lunar_Lander> OK
[20:03] <Lunar_Lander> so brian cox is not good after all?
[20:14] <nick_> He seems to be good at what he does.
[20:14] <nick_> But what he does is not what scientists do.
[20:15] <BrainDamage> "people also don't really like how he got his TV show" < I'm curious
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[20:16] <nick_> His wife is a TV producer.
[20:17] <BrainDamage> ah :/
[20:17] <Laurenceb_> didnt he used to have a band?
[20:17] <eroomde> oh god
[20:17] <nick_> He was in D:REAM
[20:18] <eroomde> Laurenceb_: you left you keys by the front door and your glasses on the loo
[20:18] <nick_> So implicitly to blame for all of Blair's govt problems.
[20:18] <eroomde> your pills are on the kitchen table where you put them
[20:18] <Laurenceb_> i dont follow this new fangled rock and roll
[20:19] <nick_> Apparenlty things can only get better until the next bust.
[20:20] <Laurenceb_> oh
[20:20] <Laurenceb_> the tony blair theme music
[20:20] <Laurenceb_> i didnt realise it was him
[20:21] <nick_> And only if you don't live somewhere sandy.
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[20:31] <Laurenceb_> eroomde: do the gold phoenix flexi pcbs allow complex cutting?
[20:31] <Laurenceb_> cutting/panelization whatever you call it
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[20:38] <eroomde> Laurenceb_: not sure, you'd have to have a closer look
[20:39] <eroomde> i think they certainly allow complex shapes
[20:39] <Laurenceb_> ok
[20:39] <eroomde> i have no idea specifically about how panelization works on their flex service
[20:39] <Laurenceb_> i cant work out why Leiton are missing a solde rstop :(
[20:39] <eroomde> but for everything else they do standard services like routing, drill holes or v-score
[20:39] <Laurenceb_> Leiton use a NdYAG laser cutter
[20:40] <Laurenceb_> i may compain to Leiton and try and score some free boards
[20:41] <Laurenceb_> otherwise its very cool stuff, im tempted to make a flexi stm32 board
[20:42] <Laurenceb_> Leiton coated the back with 3M 91022 transfer adhesive for me
[20:42] <Laurenceb_> so it sticks to silicone rubber
[20:42] <eroomde> nice
[20:43] <Laurenceb_> all for £120
[20:45] <Laurenceb_> looks like someone screwed up in the email exchange and got the wrong end of the stick wrt solder stop
[20:45] <Laurenceb_> hopefully them - their english isnt brilliant and i dont speak german :/
[20:46] <Laurenceb_> time to moan and try and score some new ones i think
[20:46] <eroomde> ACHTUNG!!! De SOLDENSTOPPEN VAS ON DE LIST!!!
[20:46] <eroomde> send them that ^
[20:46] <Laurenceb_> lol
[20:47] <Lunar_Lander> ?
[20:48] <Upu> lol
[20:48] Action: Upu pats Lunar_Lander
[20:48] <Upu> it works like this Lunar_Lander we say silly things in a fake german way
[20:48] <BrainDamage> oh, so he's german? I don't care the least bit about soccer, but being able to gloat over other's misfortunes is awesome
[20:48] <Lunar_Lander> xD
[20:49] <Upu> like for years my dad told me wind screen wipers in german was flippen de flappen de muck-end-schpredder
[20:49] <Lunar_Lander> Scheibenwischer
[20:49] <BrainDamage> it's not german unless it sounds like you're strangling someone
[20:49] <Upu> indeed
[20:49] <Upu> but it amused my dad
[20:50] <BrainDamage> case in example: pen vs kuegelschreiber
[20:51] <daveake> I hope there's more ink in a kuegelschreiber than in a pen
[20:52] <eroomde> oh daveake i had a goodie the other day
[20:52] <daveake> oh?
[20:52] <eroomde> i was humming this overture when the channel five tv crew were around
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[20:53] <eroomde> http://youtu.be/PQI5LtRtrb0?t=18s
[20:53] <Lunar_Lander> Kugelschreiber
[20:53] <eroomde> and they guy said 'because you're humming does that mean you're finished?'
[20:53] <eroomde> and i replied 'I'm Carmen soon, but at the moment I'm Bizet'
[20:54] <Lunar_Lander> XD
[20:54] <daveake> lol
[20:54] <eroomde> there was no one around to high-five
[20:54] <Lunar_Lander> btw
[20:54] <daveake> :(
[20:54] <Lunar_Lander> daveake, tried my PowerShot when I was travelling to Cologne last week
[20:54] <Lunar_Lander> https://www.youtube.com/watch?v=vQowh4mlDy8&feature=youtu.be
[20:54] <daveake> Next time you type brb, instead type "bach in a minuet"
[20:55] <Laurenceb_> argggg
[20:55] <Lunar_Lander> xD
[20:55] <eroomde> lol at that youtube video
[20:55] <Laurenceb_> mix up happened prior to billing
[20:55] <Upu> just watching it
[20:55] <Laurenceb_> i paid for solder mask less :(
[20:55] <Laurenceb_> oh well
[20:55] <eroomde> just realised i've never seen Levine and Itzhak Perelman in the same room
[20:55] <daveake> Got my £10 A490 today
[20:55] <Upu> does it work daveake ?
[20:55] <Laurenceb_> its not on the invoice :(
[20:55] <daveake> Yes, just the battery flap doesn't latch properly (as described)
[20:56] Action: Laurenceb_ makes not to try gold phoenix in future
[20:56] <Laurenceb_> *note
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[20:56] <daveake> Nothing that duct tape can't fix
[20:56] <Upu> fair enough
[20:56] <daveake> I'm sure that's why I got it cheap
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[20:56] <daveake> Plus there was a footy game on at the time
[20:57] <Upu> "Bizet - seriousÿ bizetness"
[20:57] <Lunar_Lander> xD
[20:57] <Upu> voted up by 9 people
[20:57] <Lunar_Lander> how did you like the Thalys train?
[20:57] <eroomde> famous condiuctor James Levine: http://www-tc.pbs.org/wnet/americanmasters/files/2011/05/full-levine.jpg
[20:57] <eroomde> famous violinish Perlman: http://images.bluebeat.com/an/3/1/6/0/4/l40613.jpg
[20:57] <eroomde> suspicious
[20:58] <Upu> separated @ birth ?
[21:00] <Lunar_Lander> Upu, eroomde how was it?
[21:00] <Upu> how was what sorry ?
[21:00] <Lunar_Lander> the Thalys video on youtube
[21:00] <Upu> did I miss that one ?
[21:00] <eroomde> thalys?
[21:01] <Lunar_Lander> https://www.youtube.com/watch?v=vQowh4mlDy8&feature=youtu.be
[21:01] <eroomde> oh i missed that
[21:02] <eroomde> are you making me watch a trainspotting video Lunar_Lander ?
[21:02] <eroomde> or is rock astley about to appear?
[21:02] <Laurenceb_> lol
[21:02] <Upu> something better appear
[21:02] <Upu> I mean if its a stream train cool
[21:02] <Laurenceb_> mantrain?
[21:02] <Upu> Well the camera works
[21:03] <Lunar_Lander> XD yeah
[21:03] <Upu> but you need a more interesting subject matter next time pls
[21:03] <Lunar_Lander> and Thalys is a rare train
[21:03] <daveake> It's never gonna let you down
[21:03] <Lunar_Lander> xD
[21:03] <eroomde> openshot looks cool though
[21:03] <eroomde> i'll have a play
[21:03] <Lunar_Lander> yea
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[21:04] <Lunar_Lander> Upu, if you switch to 720p HD you can even have a look in 3D
[21:04] <Lunar_Lander> I mean I used the option that youtube offered for that
[21:04] <daveake> 3D steamed up windows
[21:05] <Lunar_Lander> xD
[21:05] <Upu> lol
[21:05] <Upu> Lunar here is a proper train : https://www.youtube.com/watch?v=XXgLSSxlUXE
[21:05] <Upu> and here is a proper engine(s) https://www.youtube.com/watch?v=c6c3v9iihgw
[21:06] <eroomde> the steam is to confuse low flying aircraft
[21:06] <eroomde> and to disguise the train as fog so you can't see it from the air
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[21:06] <eroomde> we invented it for an occassion that i must not mention
[21:06] <Lunar_Lander> OHHH I read a RAIB report on an incident where a child fell out of a steam train at 20 km/h
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[21:07] <Upu> well it appears the Germans can take a joke : https://www.youtube.com/watch?v=hzumXyf2ueA&feature=related
[21:07] <eroomde> englebert humperdink has a damn wierd face
[21:07] <Lunar_Lander> XD the train whistles and someone shouts "STEAM POWERED"
[21:07] <Lunar_Lander> in the first video
[21:07] <Lunar_Lander> but it reminds me of
[21:08] <Lunar_Lander> BACK TO THE FUTURE III
[21:08] <eroomde> i'm watching Total Recall
[21:08] <Lunar_Lander> XD
[21:08] <Lunar_Lander> the crap electric taxi
[21:08] <eroomde> except clive james, being on the news a lot recently as everythone thought he was about to die, has completely ruined it for me
[21:08] <Upu> they are meant to be remaking that
[21:08] <Lunar_Lander> ohhh
[21:09] <Lunar_Lander> the taxi explosion was sooo crappy
[21:09] <eroomde> as i read one of his articles from the 80s where he describes arnold schwarnegger as a brown condom stuffed with walnuts
[21:09] <Lunar_Lander> XD
[21:09] <Upu> http://www.imdb.com/title/tt1386703/
[21:09] <Lunar_Lander> Upu, OHHH was that like WW II sounded?
[21:09] <Upu> 100% less Arnold
[21:09] <Lunar_Lander> in the second video
[21:09] <Upu> yep something like that
[21:10] <Lunar_Lander> ohhhhh
[21:10] <Lunar_Lander> :(
[21:10] <Upu> well thats what Merlin engines sound like
[21:10] <Upu> they put them in lots of planes
[21:10] <Lunar_Lander> MERLIN?
[21:10] <Lunar_Lander> that strange Niob engine by Elon MusK?
[21:10] <Lunar_Lander> *Musk
[21:10] <Upu> No no the Rolls Royce Merlin Engine
[21:10] <Lunar_Lander> ah
[21:11] <Upu> http://en.wikipedia.org/wiki/Rolls-Royce_Merlin
[21:11] <eroomde> pssst Upu
[21:11] <Lunar_Lander> OHHHH they fly in a circle!
[21:11] <Upu> hello Ed
[21:11] <eroomde> Don't mention the war!
[21:11] <Upu> too late
[21:11] <Lunar_Lander> XD giant camera at 2:39
[21:11] <daveake> http://www.youtube.com/watch?v=NGCFCHmJYtA
[21:12] <Upu> sadly most cars based on those engines are rubbish
[21:12] <eroomde> 'This is a 24-litre V12 and capable of theoretical 300mph.'
[21:12] <eroomde> lol
[21:13] <Upu> yeah right
[21:13] <eroomde> i'm not sure which theory he subscribes too
[21:13] <Lunar_Lander> OHHHH the Belgium joke!!!
[21:13] <daveake> Though this is the best car engine sound ever. http://www.youtube.com/watch?v=fZMPDCNyQxE
[21:13] <Upu> when you put wings on it
[21:13] <eroomde> theory of don't understand physics i suspect
[21:14] <daveake> 1.5 litre V16. Awesome. While it worked that is.
[21:16] <Upu> right dog walk bbs
[21:16] <Lunar_Lander> is there a reason they had just the flag of England on their jumpsuits?
[21:17] <Lunar_Lander> at Top Gear I mean
[21:17] <Lunar_Lander> and not the Union Jack
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[21:18] <eroomde> because en-ger-land
[21:18] <Lunar_Lander> xD
[21:19] <Lunar_Lander> where can I watch all of that episode
[21:19] <Lunar_Lander> ah found their youtube channel
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[21:24] <eroomde> http://www.dailymail.co.uk/news/article-2166028/Property-developer-spends-11-000-turning-double-decker-bus-new-home-priced-housing-market.html
[21:24] <eroomde> stacey drinkwater
[21:24] <eroomde> what a name
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[21:33] <Lunar_Lander> XD they had the Stig!
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[22:04] <Lunar_Lander> hey cuddykid
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[22:13] Nick change: russss_ -> russss
[22:15] <Lunar_Lander> Upu, still on your way?
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[22:57] <Laurenceb_> wtf
[22:57] <Lunar_Lander> yes?
[22:57] <Laurenceb_> i cant ping my alter ego
[22:58] <Laurenceb_> but the pc is still connected here
[22:59] <Lunar_Lander> ohhh
[22:59] <Laurenceb_> makes no sense
[22:59] <Laurenceb_> can you pin 128.243.75.1
[22:59] <Laurenceb_> *ping
[22:59] Action: SpeedEvil opens LOIC.
[22:59] <Laurenceb_> lol
[22:59] <SpeedEvil> No, I can't.
[23:00] <SpeedEvil> Well - I can - but no resutls
[23:00] <Laurenceb_> hmm weird
[23:01] <Laurenceb_> i was in the middle of an ssh session and it just died
[23:02] <Laurenceb_> maybe someone broke the firewall
[23:02] Nick change: soafee-chan -> spacekitteh
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[00:00] --- Fri Jun 29 2012