highaltitude.log.20111031

[00:10] <W0OTM> Howdy
[00:10] <W0OTM> anyone here?
[00:13] <W0OTM> http://pic.twitter.com/k
[00:14] <W0OTM> http://pic.twitter.com/0
[00:14] <W0OTM> http://pic.twitter.com/5
[00:14] <W0OTM> grrr
[00:14] <W0OTM> stupid thing
[00:15] <W0OTM> http://p.twimg.com/AdCxiHzCQAAEeyd.jpg
[00:15] <W0OTM> http://p.twimg.com/AdCxVrbCQAEkL1s.jpg
[00:16] <W0OTM> http://twitter.com/#!/W0OTM/status/130798913224577024/photo/1
[00:18] Action: fsphil is on the verge of sleep :)
[00:19] <fsphil> oooh
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[00:23] <fsphil> how'd it all go?
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[01:47] <Randomskk> Matt_soton: http://www.flickr.com/photos/randomskk/sets/72157628015795778/ it works =D
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[07:04] <earthshine> o/
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[08:26] <joph> good morning
[08:40] <UpuWork> morning
[08:51] <costyn> hi
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[09:45] <Darkside> so, i just took out my net connection with 30W of RG
[09:45] <Darkside> RF*
[09:55] <Wil5on> nice
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[10:07] <GW8RAK> RF in the shack Darkside?
[10:11] <hibby> wrap your router in tinfoil
[10:12] <Darkside> haha
[10:12] <Darkside> GW8RAK: the modem is downstairs
[10:12] <Darkside> but i think i'm radiating into the phone line
[10:12] <Darkside> my shack is about 1/4 of my desk in my room :P
[10:12] <Darkside> and my antenna is a long-wire running from outside my window to the end od my backyard
[10:13] <GW8RAK> Could be. Without a good earth, I set off the fire alarms at the cadet building if I run HF
[10:13] <Darkside> haha
[10:13] <Darkside> yeah i have a crap earth
[10:13] <Darkside> i'm using mains earth, which is bad
[10:14] <hibby> Darkside: got a ground-counterpoint for that longwire?
[10:15] <hibby> i used a 1/4wave attached to a copper pipe for mine and it was right good
[10:15] <hibby> copper pipe was in the ground
[10:16] <Darkside> nope
[10:16] <Darkside> my problem is im on the 2nd floor
[10:16] <Darkside> i can't easily run a good ground
[10:18] <hibby> Dunno... 1/4 wave at 40m would work nicely.
[10:18] <GW8RAK> I was going to suggest a connection to central heating pipes, but I don't know if you've got them.
[10:19] <Darkside> nope
[10:19] <Darkside> we don't have central heating in australia
[10:19] <GW8RAK> A simple pommie mistake :)
[10:19] <Darkside> i could possibly run a thing wire down the side of the house
[10:19] <Darkside> thin*
[10:19] <Darkside> but it really needs to be a thick wire
[10:19] <GW8RAK> Ideally it needs to be a thick braided wire
[10:19] <Darkside> yeah
[10:19] <Darkside> what i wanted to do was run RG8 down to a ground
[10:20] <Darkside> connect the shield and core to the ground at teh bottom
[10:20] <Darkside> and use the centre up in my room
[10:20] <Darkside> that way its a 'shieled' ground
[10:20] <Darkside> shielded*
[10:20] <GW8RAK> One HF set I used to have had a rollercoaster on the ATU. Without an earth, everytime my fingers got near a little bit of bare metal, there was a tingling in my hand.
[10:21] <Darkside> hahahaha
[10:21] <GW8RAK> Was looking for a burr or sharp bit of metal for a long time.
[10:21] <Darkside> mine doesn't do that
[10:21] <GW8RAK> With a bit of luck, we'll be able to try an HF contact this weekend with no contest on.
[10:21] <Darkside> heh
[10:22] <Darkside> with my setup? unlikely
[10:22] <Darkside> i'm back home now
[10:22] <Darkside> S8 noise floor
[10:23] <GW8RAK> Oh well. Can you connect remotely to your Dad's rig?
[10:24] <Darkside> nope
[10:29] <Darkside> hehe
[10:29] <Darkside> im talking to my dad on 40m now
[10:29] <Darkside> we're gonna try 2m SSB
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[10:33] <hibby> love a bit of 2m ssb
[10:33] <Darkside> didnt work
[10:41] <k5egg> MOER WATTS
[10:41] <k5egg> ;)
[10:42] <Darkside> now on 2m lol
[10:44] <k5egg> http://youtu.be/Qw8OJJQ_hgk
[10:44] <k5egg> woah
[10:44] <k5egg> operate HT from 102kft?
[10:47] <SamSilver> k5egg: what would moer watts mean?
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[10:50] <Darkside> hehe
[10:50] <Darkside> my dad got into a local repeater
[10:50] <SamSilver> 2m ssb
[10:51] <Darkside> no, FM
[10:51] <Darkside> we couldn't do 2m ssb simplex, my 2m antenna is shit
[10:51] <k5egg> its all about antnenas
[10:51] <k5egg> err antennas
[10:51] <k5egg> you can have the best radio
[10:51] <k5egg> crap antenna = no fun
[10:52] <Darkside> yeah, i have a bloody IC-7000
[10:52] <Darkside> and a shit antenna :P
[10:52] <SamSilver> I wish I had an IC-7000
[10:53] <GW8RAK> On VHF and up, I've got good aerials, but shit rigs
[10:54] <k5egg> I wish I had a HF rig at all
[10:54] <k5egg> I expect I'll have one in a few months, one way or another
[10:54] <SamSilver> where are you k5egg ?
[10:54] <k5egg> even if its just a Softrock RXTX kit radio and a ghettorig linear
[10:54] <k5egg> Texas
[10:55] <k5egg> I mean, I could get a radio today
[10:55] <k5egg> its just... that takes the challenge out of it
[10:56] Action: k5egg has a halfway decent dualband HT (Wouxun KV-UV2D), an old but FB 2M 25W PLL mobile (kenwood TR7400A), and some various other stuff
[10:57] <k5egg> built a softrock ensemble RX last month, has been fun to listen
[10:57] <k5egg> upgrading my license next month, so I gotta get a rig ;)
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[13:16] <W0OTM> GM
[13:16] <W0OTM> http://p.twimg.com/AdCxVrbCQAEkL1s.jpg
[13:17] <W0OTM> http://twitter.com/#!/W0OTM/status/130798913224577024/photo/1
[13:21] <SamSilver> W0OTM: I look forward to your posts, always new and exciting
[13:21] <Randomskk> W0OTM: no backup parachute? what happens if the autopilot fails and it nosedives? (or will it glide by default, even from pointing down?)
[13:22] <W0OTM> Randomskk: thats the risk
[13:23] <SamSilver> W0OTM: is that a MultiPlex product?
[13:23] <SamSilver> EasyStar's big brother
[13:24] <W0OTM> Multiplex? The airplane? no
[13:24] <SamSilver> looks a bit like a "Curlis" spelling
[13:25] <Randomskk> W0OTM: just flying over totally uninhabited areas though I guess?
[13:25] <W0OTM> Randomskk: I would't say that so much
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[13:32] <Zuph> Neat http://beagleboard.org/bone
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[13:44] <fsphil> ok who broke notaminfo.com :)
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[14:02] <Laurenceb> thats not your typical beagleboard developer
[14:04] <NigelMoby> Arse to it
[14:04] <NigelMoby> Muppets forget to renew a Ssl cert and its my fault... :@
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[14:08] <Lunar_Lander> hello
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[14:13] <Laurenceb> see... http://bp2.blogger.com/_0mq51fQymFM/SFlS5f_OueI/AAAAAAAABMw/Jwe2CRE0JY4/s320/Nerd.jpg
[14:14] <Laurenceb> thats a typical beagleboard dev
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[14:25] <costyn> Laurenceb: hehe
[14:27] <Laurenceb> ok openpilot EKF is funning of stm32F4
[14:28] <Laurenceb> with hardware fpu
[14:28] <Laurenceb> max iteration period with all the sensors is... 178us
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[14:33] <SpeedEvil> ...
[14:33] <NigelMoby> .....
[14:33] <Zuph> Damn
[14:33] <Lunar_Lander> .......
[14:33] <Lunar_Lander> xDF
[14:33] <Lunar_Lander> xD
[14:34] <SpeedEvil> Slight overkill.
[14:36] <UpuWork> http://www.reghardware.com/2011/10/31/geek_treat_of_the_week_gopro_hd_hero_2/
[14:36] <Laurenceb> thats a 13 component state vector ekf :P
[14:38] <Laurenceb> now for the 16 component state vecotr
[14:38] <Lunar_Lander> btw
[14:38] <SpeedEvil> What's the difficulty - is it 1/n^13?
[14:38] <Lunar_Lander> Shenzou 8 is about to launch and a german science payload is onboard
[14:38] <Laurenceb> n^3
[14:38] <Lunar_Lander> http://www.dlr.de/dlr/presse/en/desktopdefault.aspx/tabid-10172/213_read-1791/year-2011/
[14:38] <Laurenceb> where n is state vector size
[14:38] <SpeedEvil> ah
[14:39] <Laurenceb> F4 is a hundred MFLOPS or so
[14:39] <SpeedEvil> Hehe. Even with 100 states, it's at several hertz.
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[14:40] <SpeedEvil> Flexible structures?
[14:40] <Laurenceb> lol
[14:41] <Laurenceb> i leave the crazy maths to openpilot
[14:41] <SpeedEvil> To be slightly serious - I could see where this would have a use.
[14:41] <SpeedEvil> Body tracking.
[14:41] <SpeedEvil> Accel + mag on each joint.
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[14:51] <Lunar_Lander> ROFL I just read something hilarious
[14:52] <Lunar_Lander> in a physics board someone asked how to calculate the wavelength of light that is needed to generate photoelectrons with a certain velocity
[14:53] <Lunar_Lander> and someone said that she'd have to calculate the kinetic energy of the electrons, then she said that she doesn't know what "m" in the energy formula is
[14:53] <SpeedEvil> ...
[14:53] <BrainDamage> magic factor
[14:53] <Lunar_Lander> and then "Na ich gehe daraus, dass es masse von Licht ist und Licht hat keine masse also E ist dann 0 "
[14:53] <Lunar_Lander> she says
[14:53] <Lunar_Lander> "I think that it is the mass of light and light has no mass, thus E=0"
[14:54] <BrainDamage> usually when such specific questions and totally lack of background knowledge, it's for overunity bullshit :p
[14:54] <Lunar_Lander> xD!
[14:55] <Lunar_Lander> the next guy said that m is the resting mass of the electron
[14:55] <Lunar_Lander> and then
[14:56] <Lunar_Lander> "Yes but the problem is that I don't get how to calculate E. OK, v is the velocity, 100 km/s, but I haven't got m. I think m is the mass of Light and I looked it up on the internet and it says that light has no mass, only momentum. How shall I find m? Or do I miss something?"
[14:57] <BrainDamage> at that speed, you probably have to use relativistic kinetic energy too
[14:57] <Lunar_Lander> yeah that was mentioned also by someone
[14:57] <Lunar_Lander> but I doubt that she would get that
[14:57] <Lunar_Lander> XD
[14:58] <Lunar_Lander> ahh my eyes!!! http://www.chemieonline.de/forum/showpost.php?p=2684877033&postcount=18
[14:59] <BrainDamage> lol, there's more digits there than the mantissa of most pc
[14:59] <Lunar_Lander> xD
[15:00] <Lunar_Lander> next post is "No. Please keep an eye on the correct units and calculate using SI units and powers of ten."
[15:00] <BrainDamage> also, where did she get the work function of the material? it was stated in the problem's formulation?
[15:01] <Lunar_Lander> as she wrote it down, no
[15:01] <Lunar_Lander> but she'd need it for the calculation
[15:01] <Lunar_Lander> tah
[15:01] <Lunar_Lander> *ah
[15:01] <Lunar_Lander> there is the extraction work, W=3 eV
[15:02] <Lunar_Lander> my fault
[15:02] <Zuph> Bah, I measure my photon's energy in foot-poundals.
[15:02] <Lunar_Lander> xD
[15:02] <BrainDamage> Wa
[15:02] <Lunar_Lander> yes Wa
[15:03] <Lunar_Lander> so, on Oct. 29, 3:53 pm UTC, the guy solved the task
[15:03] <Lunar_Lander> seven minutes later, she posted again
[15:04] <Lunar_Lander> "So, now I have a new problem! I don't know what colour that light has. I found a chart here (wikipedia link) but I got wavelength of 0.00041 nm"
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[15:04] <Lunar_Lander> xD
[15:05] <Lunar_Lander> the other guy then mentioned that it is not visible light but that these are X-Rays
[15:05] <Lunar_Lander> and then she shut up
[15:05] <Lunar_Lander> :D
[15:05] <SpeedEvil> Some people need help.
[15:06] <SpeedEvil> Other people - the stupid - it burns!
[15:06] <Lunar_Lander> yea
[15:06] <Lunar_Lander> YAY another thing by her
[15:08] <Lunar_Lander> "A beam consisting of white light has the wavelength lr=700nm and lv=400nm. It shines perpendicularly onto a grid with 1000 lines per cm. a) Which angles result for the brightness maxima of the first order for red and violet light? b) What distance do the brightness maxima of the first order have on a screen that is placed 2 m away? c) Why do the blue maxima lay closer together than the red ones?"
[15:08] <Lunar_Lander> "I have no idea how to solved that! I hope someone helps me. Greetings"
[15:09] <SpeedEvil> Paypal account plz.
[15:09] <Lunar_Lander> xD
[15:09] <Lunar_Lander> AHHHH! http://www.chemieonline.de/forum/showpost.php?p=2684875884&postcount=6
[15:10] <BrainDamage> how did she even got to the point of getting those questions? I mean, it seems to me she should've failed hard much earlier :/
[15:11] <Lunar_Lander> yeah and not with interference and atomic physics
[15:11] <Lunar_Lander> I don't know to be honest
[15:15] <Zuph> She might be in engineering. There are some pretty pathetic physics students in my EE courses :-p
[15:16] <SpeedEvil> Or she has been helped in person by those that can be helped by her in person.
[15:17] <Lunar_Lander> xD
[15:18] Action: SpeedEvil realises you can get really quite cheap heat in winter with a heatpump running on economy 7.
[15:20] <Zuph> <-- 11 c/kW-H
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[15:21] <SpeedEvil> Zuph: what sort of c are those?
[15:21] <SpeedEvil> the dollar sort?
[15:21] <Zuph> Yes
[15:22] <SpeedEvil> 1.6c/kWh about.
[15:22] <SpeedEvil> (with a good heatpump)
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[15:22] <BrainDamage> what temp source would it use? ground?
[15:22] <Zuph> Gets too cold here for heat pumps to work past december, or so.
[15:23] <SpeedEvil> I'm thinking about a hacked airsource pump.
[15:23] <SpeedEvil> Hacked to draw air past a large surface of earth - an earth tube
[15:24] <SpeedEvil> Going to a large 40C thermal store.
[15:24] <SpeedEvil> Large = several tons.
[15:26] <Lunar_Lander> THE AWFUL TRUTH IS REALLY SAD
[15:26] <Lunar_Lander> xD
[15:26] <Lunar_Lander> who knows the song?
[15:26] <Lunar_Lander> from which that line is
[15:29] <Laurenceb> nice: stm32f4 is drawing 47ma at 3.3v
[15:29] <Laurenceb> about the same as f1
[15:29] <SpeedEvil> Is that doing the KEF?//
[15:30] <Laurenceb> yes
[15:30] <Laurenceb> cpu running at 287MHz
[15:30] <Zuph> 287?!
[15:30] <BrainDamage> what's standby current?
[15:30] <Zuph> I thought they maxed out at 168.
[15:34] <Laurenceb> F4 not F2
[15:35] <Laurenceb> BrainDamage: if you shutdown its about 1uA
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[15:40] <Lunar_Lander> OK
[15:40] <Lunar_Lander> time to go cycling
[15:40] <Lunar_Lander> :)
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[15:41] <BrainDamage> Laurenceb: nice, I'll check datasheet for RTC standby, I have a silly low-power application in mind
[15:58] <Laurenceb> http://vimeo.com/31366215
[16:16] <SpeedEvil> http://www.youtube.com/spacelab?feature=inp-hh-space
[16:17] Action: SpeedEvil ponders his earlier idea of a tune-locator-keyring.
[16:20] <W0OTM> Howdy
[16:20] Action: hibby hunts for the satellite station key
[16:20] <hibby> might be locked out the office :(
[16:21] <SpeedEvil> Ancient chinese philosopher say:
[16:21] <SpeedEvil> Man with knowledge never locked out when he has aluminium powder, and iron oxide.
[16:21] <hibby> lol
[16:22] <hibby> the university may object to me blowing my door off just so I can play radio
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[16:28] <NigeyS> ping Laurenceb
[16:29] <Laurenceb> yo
[16:29] <NigeyS> hey dude, those pressure have turned up
[16:29] <NigeyS> sensors*
[16:29] <NigeyS> i can barely see them !
[16:30] <Laurenceb> bmp085?
[16:30] <NigeyS> yup
[16:30] <Laurenceb> its huge :P
[16:30] <Zuph> They aren't that small :-p
[16:30] <NigeyS> its tiny! lol
[16:30] <NigeyS> i thought the ublox 6 was small, this just takes the biscuit..lol
[16:34] TimZaman (~chatzilla@535602CA.cm-6-7a.dynamic.ziggo.nl) joined #highaltitude.
[16:34] <NigeyS> oh noes its Tiiiiiiiiim
[16:34] <TimZaman> http://www.timzaman.nl/?page_id=1632
[16:35] <TimZaman> my first prediction indicated a launchsite-to-dropzone distance of around 20km =)
[16:35] <TimZaman> Luckily i know that first predictions are worthless
[16:35] <NigeyS> :o nicey!
[16:35] <TimZaman> Especially since it said yesterday it'd be going 100km/h northbound
[16:36] <NigeyS> lol, be funny if it stayed at that prediction mind
[16:36] <TimZaman> why
[16:36] <NigeyS> less travel distance to pick it up :D
[16:36] <NigeyS> get a bus !
[16:37] <TimZaman> :-)
[16:37] <daveake> My first flight landed 30km from the launch
[16:37] <NigeyS> someone has got to do that soon, payload recovery by bus, train, and bicycle only!
[16:37] <daveake> It hasn't been that cosy since then :p
[16:37] <TimZaman> :)
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[16:41] <TimZaman> any news on HAB front?
[16:42] <TimZaman> did rocketboy win his grand prize?
[16:42] <NigeyS> pass
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[16:43] <TimZaman> pass?
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[18:42] <Lunar_Lander> back
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[18:44] <jcoxon> evening all
[18:44] <LazyLeopard> hiya
[18:44] <Lunar_Lander> hi jcoxon
[18:45] <number10> evening
[18:47] <nosebleedKT> Lunar_Lander: page is ok now.
[18:47] <Lunar_Lander> YAY
[18:48] <nosebleedKT> at work im surrounded by 9 women
[18:48] <Lunar_Lander> cool!
[18:48] <nosebleedKT> ultra cool
[18:48] <Lunar_Lander> YAY
[18:48] <Lunar_Lander> xD
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[18:49] <nosebleedKT> one is russian and she looks like a pornostar
[18:49] <nosebleedKT> :)
[18:49] <nosebleedKT> really russian women are so exotic !
[18:49] <Lunar_Lander> :D
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[18:59] <Lunar_Lander> the radio shield looks cool
[19:00] <joph> nosebleedKT, that's typical for women out of russia ;)
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[19:01] <nosebleedKT> i will send you one Lunar_Lander
[19:01] <nosebleedKT> joph ?
[19:02] <joph> nosebleedKT, women out of russia look often great ;)
[19:02] <nosebleedKT> ah
[19:02] <Lunar_Lander> cool nosebleedKT
[19:02] <nosebleedKT> but it will be long delay until i order and get them back
[19:03] <nosebleedKT> if you can wait i can send you all things together
[19:03] <nosebleedKT> flight system and radio shield
[19:03] <Lunar_Lander> no problem :)
[19:04] <Lunar_Lander> sounds good
[19:04] <nosebleedKT> you just put it on top of arduino and you decode aprs in your laptop
[19:04] <nosebleedKT> then make a software that takes the aprs data and put it on google maps realtime
[19:04] <nosebleedKT> this is what im going to do
[19:06] <Lunar_Lander> cool!
[19:06] <Lunar_Lander> xD http://img854.imageshack.us/img854/681/caravansmash.png
[19:20] <Laurenceb_> wut
[19:20] <Lunar_Lander> xD
[19:21] <SpeedEvil> I guess she was inside, and smelled a pie.
[19:22] <Lunar_Lander> XD
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[19:26] <Lunar_Lander> http://imageshack.us/photo/my-images/525/endofwc.png/
[19:27] <eroomde> evening
[19:27] <jcoxon> hey eroomde
[19:27] <eroomde> hey james
[19:27] <eroomde> how's it going?
[19:27] <jcoxon> not bad thanks
[19:27] <jcoxon> you?
[19:28] <jcoxon> i very nearly did a edmoore classic spontanous purchase
[19:28] <jcoxon> managed to resist
[19:29] <eroomde> oh?
[19:29] <jcoxon> nearly got a new macbook air
[19:29] <eroomde> nothing wrong with ed moore spontaneous purchases
[19:29] <jcoxon> hehe
[19:29] <eroomde> i'm writing to you now looking through a spontaneous purchase
[19:30] <jcoxon> its cause my macbook battery died
[19:30] <eroomde> that was more of a hypoglycaemic purchase tho
[19:30] <jcoxon> instead i ordered a new battery instead
[19:30] <jcoxon> i got as close as being in the apple store
[19:30] <eroomde> what made you veer off?
[19:31] <jcoxon> council tax
[19:31] <jcoxon> oh well
[19:31] <jcoxon> soon
[19:31] <eroomde> lol
[19:32] <eroomde> fair enough
[19:32] <Lunar_Lander> http://imageshack.us/photo/my-images/215/preparingschnitzel.png/
[19:32] <jcoxon> you up to much 19/20 Nov?
[19:32] <eroomde> homebrew for mac is literally amazing
[19:32] <eroomde> erm don't think so
[19:32] <eroomde> wazup?
[19:32] <jcoxon> thinking of doing a 36km floater
[19:33] <eroomde> that's gotta hurt
[19:33] <eroomde> 4 weeks of curry, 3 times a day?
[19:34] <jcoxon> pretty much
[19:34] <Lunar_Lander> xD
[19:34] <eroomde> but yes cool
[19:34] <eroomde> launching from where?
[19:34] <jcoxon> cam most likely
[19:34] <eroomde> hope the weather is kind
[19:34] <jcoxon> yes of course it'll be a bit dependent on that
[19:36] <jcoxon> will just have to see
[19:38] <eroomde> sounds cool
[19:44] <SpeedEvil> http://www.youtube.com/watch?v=KVN_0qvuhhw - sort-of-on-topic-but-not
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[19:53] <NATO_> Hi, has anyone (here) had any experience with large "party" balloons (instead of real weather baloons)? A company called Qualatex makes a 3 ft. balloon that should meet the needs of my very small payload.
[19:54] <eroomde> NATO_: about 2 seconds before you arrived, jcoxon left
[19:54] <eroomde> and he has done lots of party balloon flights
[19:54] <eroomde> see if he returns
[19:54] <NATO_> I'm just wondering what the draw-backs are.
[19:54] <eroomde> if not, try NigeyS too
[19:54] <eroomde> he has party balloon experience
[19:54] <eroomde> also RocketBoy
[19:54] <eroomde> and I have help with a couple of party balloon launches myself
[19:54] <eroomde> NATO_: is it a foil-type party balloon?
[19:55] <NATO_> great. as far as I can tell, these are fairly high quality latex balloons, for as cheap as $4 each.
[19:55] <NigeyS> if it's a chlorpropelene (SP) balloon, you probably wont get much higher than 17,000ft
[19:56] <NATO_> they are pure latex
[19:56] <eroomde> latex changes things
[19:56] <eroomde> not flown any tiny latex balloons
[19:56] <eroomde> but i'd imagine they'd behave like the bigger ones
[19:56] <eroomde> just they wouldn't get as high
[19:57] <W0OTM> Howdy
[19:57] <NATO_> something like this: http://www.brodys8004balloons.com/3_foot_Qualatex_Latex_Balloons_s/676.htm
[19:57] <NigeyS> hey W0OTM
[19:57] <NigeyS> didnt you use latex balloon of the party kind a few times marshal ?
[19:57] <NigeyS> balloons*
[19:57] <W0OTM> yeah
[19:57] <W0OTM> 36"
[19:57] <W0OTM> x5
[19:57] <NATO_> did they perform well?
[19:57] <NigeyS> ahh yeah, altitude ?
[19:57] <W0OTM> 18K ft
[19:58] <W0OTM> not very good, better off with a 100g weather balloon
[19:58] <NATO_> W0OTM did you ever try ganging 2 or more together?
[19:58] <W0OTM> I tied 5 together
[19:59] <W0OTM> http://www.ihabproject.com/iHAB-5/Media/230816_10150248784220943_746325942_9168810_828679_n.jpg
[19:59] <NATO_> I assume there are not rated for much expansion. So 3' is nearer the breaking point than a 3' weather balloon.
[19:59] <W0OTM> http://www.ihabproject.com/iHAB-5/Media/230606_10150248784245943_746325942_9168811_582707_n.jpg
[20:00] <nickolai> someone's done trash bag weather balloons
[20:00] <nickolai> im sure if u googled it you'd find something
[20:00] <W0OTM> What was me :) http://www.youtube.com/watch?v=kP-kY0cNL0s&feature=player_embedded
[20:01] <nickolai> also, I'm told it's fairly easy to make a balloon using just painters drop cloth, a heat gun, and some flat boards
[20:01] <W0OTM> TrashBag High Alt Balloon
[20:01] <nickolai> ah!
[20:01] <NigeyS> the trash bag was cool
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[20:04] <nickolai> hm, that was sudden
[20:04] <nickolai> i was just gonna ask him how high he's been able to get with a trash bag
[20:06] <NATO_> W0OTM that trash bag video was pretty funny. So did the balloons start failing at 18K or did you just decide to cut it down?
[20:07] <nickolai> he just quit, perhaps he'll be back
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[20:11] <NigeyS> wb marshal
[20:12] <Lunar_Lander> hi NATO_ NigeyS nickolai
[20:12] <NigeyS> hey Kev
[20:13] <nickolai> hey Lunar_Lander
[20:14] <NATO_> Hi, Lunar
[20:15] <Lunar_Lander> and hi SAIDias
[20:16] <Lunar_Lander> I found something interesting, there is a book called "Mr. Tompkins in Wonderland", explaining modern physics
[20:16] <Lunar_Lander> Mr. Tompkins visits a lecture about relativity, doesn't get it and falls asleep
[20:16] <Lunar_Lander> and dreams of a world where c=30 mph
[20:19] <nickolai> haha
[20:19] <nickolai> that's hilarious, i'll have to check that out
[20:19] <Lunar_Lander> yeah
[20:20] <Lunar_Lander> another time he dreams he is an electron
[20:20] <Lunar_Lander> and wakes up when he smashes into a positron
[20:24] <nickolai> haha
[20:24] <nickolai> nice
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[20:31] <Lunar_Lander> :) later he marries the professor's daughter and they have a son and he becomes a biologist
[20:31] <Lunar_Lander> and the later books deal with that
[20:48] <fsphil-zombie> lots of lanterns being launched tonight. wonder if we could stick a tracker on one :)
[20:49] <Lunar_Lander> yea
[20:49] <Lunar_Lander> they are almost banned everywhere in GER now
[20:49] <fsphil-zombie> wind is carrying them all north .. can't imagine they're getting too far
[20:49] <Lunar_Lander> yea
[20:50] <fsphil-zombie> yea - the guy launching them nearly set himself on fire trying to launch it
[20:50] <Lunar_Lander> nickolai : http://www.youtube.com/watch?v=7jD7gThP3aw&feature=related jump to 34:40
[20:50] <Lunar_Lander> yea
[20:52] <nickolai> lol, Lunar, what is this shit?
[20:52] <Lunar_Lander> XD that is scripted reality
[20:52] <Lunar_Lander> :P
[20:53] <nickolai> you know i don't speak german right?
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[20:53] <Lunar_Lander> xD the text is not important at all
[20:53] <Lunar_Lander> xD
[20:53] <Lunar_Lander> only the music and the pictures
[20:54] <fsphil-zombie> boo... http://habhub.org/predict/#!/uuid=04e26415aa02e151cdc86e5b20ef910719515751
[20:54] <fsphil-zombie> silly winds
[20:55] <fsphil-zombie> oooh... http://habhub.org/predict/#!/uuid=de206830d121b5e4a0863cb3f8b34d8caee6ec95
[20:55] <fsphil-zombie> nice winds
[21:00] <fsphil-zombie> and if it floats, it'll head towards england
[21:00] <fsphil-zombie> very very slowly :)
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[21:14] <LazyLeopard> Second one looks good. ;)
[21:14] <fsphil-zombie> does!
[21:15] <fsphil-zombie> I might give DM a call
[21:15] <fsphil-zombie> long range prediction though
[21:15] <fsphil-zombie> it'll never be that good :)
[21:15] <eroomde> Zuph: yo
[21:15] <eroomde> are you about?
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[21:16] <Zuph> eroomde: aye
[21:16] <eroomde> hello
[21:16] <Zuph> How's it going?
[21:16] <eroomde> have you done any stuff with jtag on osx lion?
[21:16] <eroomde> and fine thanks
[21:16] <Zuph> Not in OSX, but I have in Linux.
[21:17] <eroomde> i'm having a head scratcher with openOCD
[21:17] <Zuph> I don't know that I'll be able to help much, but I'll give it a whirl.
[21:17] <eroomde> she wont see my jtag for love nor money
[21:18] <eroomde> it's probably a niche bug as i'm burried in dmesg logs atm
[21:18] <Zuph> hmm, ft2232 based?
[21:18] <eroomde> i've tried building it with every possible alternative library too
[21:18] <eroomde> yep
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[21:20] <Zuph> All I can suggest is making sure you've got the latest D2xx drivers
[21:20] <eroomde> yeah i might try re-installing them again
[21:20] <Zuph> I've never had a problem with openOCD/FT2232
[21:20] <Zuph> It's always been one of those stunning "just works" sort of things.
[21:21] <eroomde> i never get those
[21:21] <eroomde> i get situations where i'm going through openocd source
[21:21] <eroomde> the pdf documentation is v thorough and interesting though
[21:21] <eroomde> i guess i'm learning soemthing
[21:22] <Zuph> hah
[21:22] <Zuph> Yeah
[21:22] <Zuph> It's surprisingly well done.
[21:23] <Zuph> Right, time to fight my way home. See you guys later.
[21:23] <eroomde> cheers
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[21:34] <eroomde> Zuph !!!
[21:34] <eroomde> I love you man
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[21:35] <eroomde> you made me recheck my config script and i was trying to build it against libftdi rather than ftd2xx
[21:35] <eroomde> now it works!
[21:36] <NigeyS> duh! :p
[21:36] <eroomde> well, it's giving indications that it's talking anyway
[21:36] <NigeyS> its a start...
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[21:41] <Randomskk> eroomde: openocd made me so sad that I just use the serial bootloader now
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[21:44] <Laurenceb_> hehe me too
[21:44] <zyp> the serial bootloader made me so sad that I just use openocd now
[21:44] <Laurenceb_> SWD with STlink is looking good now
[21:44] <eroomde> Randomskk: I will defeat it
[21:44] <eroomde> jtag is too useful
[21:44] <eroomde> just, trying to make it play nicely on Lion has been a bit arduous so far this evening
[21:44] <Laurenceb_> http://www.deltang.co.uk/
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[21:45] <zyp> eroomde, I'm running openocd on OS X without any problems
[21:45] <eroomde> on lion?
[21:45] Action: Laurenceb_ has been benchmarking STM32F4
[21:45] <zyp> hmm, let me think
[21:46] <eroomde> Laurenceb_: later please
[21:46] <Laurenceb_> hehe
[21:46] <zyp> I don't think I've tried openocd on lion yet
[21:46] <eroomde> ok
[21:46] <eroomde> how did you build it?
[21:46] <zyp> I've still got SL on this computer, and I don't think I've used openocd on the macbook since I upgraded it to Lion
[21:46] <zyp> with homebrew
[21:46] <eroomde> ah right
[21:46] <eroomde> with any options?
[21:47] <zyp> yeah, had to enable ftdi support
[21:47] <eroomde> --enable-ft2232_libftdi perhaps?
[21:47] <eroomde> ok.
[21:47] <zyp> right
[21:47] <eroomde> did you use libftdi or ftD2xx do you recall?
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[21:48] <zyp> libftdi I think, I can have a look
[21:48] <eroomde> that would be grand if you have time
[21:48] <eroomde> now with d2xx i actually get a popup asking me if I want to allow openocd to run
[21:48] <eroomde> which seems odd
[21:49] <zyp> yeah, I'm using libftdi
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[21:50] <eroomde> ok thanks
[21:51] <eroomde> well this is all lots of fun
[21:53] <eroomde> it might be that boost is a dependency and lion can't build boost properly
[21:53] <eroomde> well, llvm can't
[21:53] <eroomde> and gcc on lion is just a symlink to llvm
[21:53] <eroomde> for some reason building boost --without-python worked
[21:53] <eroomde> this is all too bloody much
[21:53] <eroomde> i just want to blink an led
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[22:15] <Laurenceb_> eroomde: 13 component state vector EKF in 178us with predict and update with all sensors XD
[22:15] <Laurenceb_> on F4
[22:15] <Randomskk> you have an F4?
[22:16] <Randomskk> or is that predicted?
[22:19] Nick change: fsphil-zombie -> fsphil
[22:20] <Laurenceb_> i have one
[22:20] <Laurenceb_> F4descovery from ST
[22:20] <Laurenceb_> *discovery
[22:21] <Randomskk> oh cool
[22:22] <Laurenceb_> draws 50ma at 3.3v running the test
[22:25] <Randomskk> niice.
[22:27] <eroomde> wow
[22:27] <eroomde> it works!
[22:27] <eroomde> mofo!
[22:27] <eroomde> time for a bottle of wine
[22:27] <eroomde> sod trying to get anything done
[22:27] <Randomskk> haha
[22:27] <Randomskk> it's definitely that time of the evening
[22:27] <Randomskk> btw eroomde I am now a total convert to silicone insulation on wires
[22:27] <Randomskk> so much better
[22:28] <eroomde> was a problem with the proprietary ftdi drivers, the firewall, and kext reloading, all at the same time
[22:28] <eroomde> Randomskk: good
[22:28] <Randomskk> sounds fun
[22:28] <eroomde> we only flew silicon in the blimp
[22:28] <eroomde> much nicer to handle, strippable with a thumbnail, doesn't turn to smoke when you draw too much current
[22:28] <Randomskk> a ton nicer to solder as well
[22:29] <Randomskk> though obviously connectors are also <3
[22:30] <eroomde> lemo or death
[22:31] <eroomde> i've been using the amphenol ms3112e8 (from memory so sorry if wrong) for some pyros
[22:31] <eroomde> they're really wonderful
[22:31] <eroomde> i think mil spec connectors are really worth it for hab things
[22:31] <eroomde> they're the only kind of connector that can take february morning launches from EARS
[22:31] <Randomskk> they are just so much nicer
[22:32] <eroomde> where you are monging stuff together with dead fingers through gloves
[22:32] <eroomde> and they lock so affirmatively
[22:32] <eroomde> gives me pleasurable shivvers
[22:33] <Randomskk> uh huh
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[22:34] <eroomde> zyp: all working now
[22:35] <zyp> :)
[22:35] <eroomde> libusb was battling with the proprietary ftdi drivers
[22:35] <eroomde> s/libusb/libftdi
[22:35] <eroomde> it said so in /var/log/kernel all along infact. i was just being blind
[22:36] <eroomde> Randomskk: got it working in eclipse now too
[22:36] <Randomskk> boo eclipse >_>
[22:36] <eroomde> hah, see as all these debugging dominos tumble
[22:37] <eroomde> Randomskk: I cannot use gdb from the command line
[22:37] <eroomde> cannot
[22:37] <eroomde> willnot
[22:37] <eroomde> life is too short
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[22:45] <zyp> IMO life is to short to muck about with eclipse
[22:45] <zyp> too*
[22:48] <Laurenceb_> what happens if you pass a null pointer to memcpy?
[22:48] <Laurenceb_> with 0 bytes to transfer?
[22:48] <fsphil> seg fault?
[22:49] <Laurenceb_> well it seems to kill my stm32
[22:49] <RocketBoy> whatever it says in the manual - otherwise its implementation dependant
[23:01] <nickolai> eroomde have you tried ddd? instead of gdb?
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[23:10] <eroomde> nickolai: i haven't
[23:11] <nickolai> it's a gui interface for gdb, there's still some command line mucking about but it's got some nice buttons and is a bit easier to use for those people who actually do have a mouse plugged into their computer most of the time
[23:12] <eroomde> i'll try and get the entire toolchain integrated with eclipse first
[23:12] <eroomde> i'm bouyed by tonight
[23:12] <eroomde> it must be all down hill from here surely
[23:14] <Randomskk> ha ha
[23:14] <Randomskk> what are you targetting?
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[23:27] <BrainDamage> try also nemiver for a gdb gui
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[23:39] <NigeyS> omg
[23:39] <NigeyS> eagle can go die
[23:39] <NigeyS> :(
[23:40] <Randomskk> use kicad :P
[23:42] <NigeyS> haha i think its gonna be "HELLLLLLLLP" no matter what i use
[23:42] <joph> eagle is great when you're able to control it
[23:42] <NigeyS> but tbh, the swift schematic is pretty impressive..lol
[23:42] <joph> for that you have to read the manual
[23:42] <NigeyS> joph, true
[23:42] <joph> but eagle is a little bit obsolete
[23:43] <joph> other programs have a lot of more features
[23:43] <NigeyS> i like altium, but wow, couldnt follow it when Darkside was giving me a demo
[23:43] <joph> altium is very expensive
[23:44] <NigeyS> 10k i think ?
[23:44] <joph> if you're a student, you can get a "cheap" license, but for a normal user its to expensive
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[23:44] <NigeyS> yup, i dont have 10k to buy a car let alone computer software lol
[23:45] <NigeyS> Randomskk, https://github.com/ProjectSwift/Project-Swift
[23:45] <Randomskk> yay github :P
[23:45] <Randomskk> looks cool, though I don't have eagle installed so can't really check it out in much detail
[23:45] <NigeyS> ahh oki no worries
[23:45] <NigeyS> if anyone happens to spot some blindingly obvious screw up, do yell though lol
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[00:00] --- Tue Nov 1 2011