highaltitude.log.20101217

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[00:45] <fsphil> the flight computer lives!
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[06:15] <Darkside> oh man
[06:15] <Darkside> ohmanohman
[06:15] <Darkside> https://github.com/lukeweston/RocketInstrumentation
[06:15] <Darkside> check that shit out
[06:15] <Darkside> thats a combintion of juxta's Nut board, and another board
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[07:55] <jcoxon> ping juxta
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[08:16] Nick change: Nigey|Away -> NigeyMoby
[08:16] <NigeyMoby> Boo
[08:18] <NigeyMoby> So who's fault is the 5inches of snow we had overnight? :/
[08:31] Nick change: TraumaPony -> TraumaPrincess
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[08:37] Nick change: NigeyMoby -> Nigey|Away
[08:41] <fsphil> no mee
[08:42] <fsphil> not me
[08:42] <fsphil> if it doesn't stop I'll be stuck at work :p
[08:43] <fsphil> quite a few accidents last night, lots of black ice on the main roads
[08:49] <fsphil> doing a test of the flight computer, running with four nimh batteries it's still going after 7 hours - but the gps stopped working after the voltage dipped below 3v
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[09:04] <GW8RAK> Morning fsphil. Is the GPS normally fed with 5V or thereabouts?
[09:04] <fsphil> morning GW8RAK - this module works at 3.3v
[09:04] <GW8RAK> So you have a 3.3V regulator?
[09:04] <fsphil> yea
[09:05] <fsphil> the battery is fairly drained though, and the regulator is only putting out 2.8v
[09:05] <Darkside> hey guys: https://github.com/lukeweston/RocketInstrumentation/blob/master/RocketInstrumentation-board.png
[09:05] <GW8RAK> I was looking at power supplies etc and found that with the overhead required by the regulator, a 9V power pack was a better bet.
[09:05] <GW8RAK> 4.8V or even 6V doesn't have a long way to drop before the regulator stops functioning.
[09:06] <Darkside> thats the board being constructed at the arduino miniconf at linux conf australia - a modification and extention of the project horus flight computer
[09:06] <GW8RAK> Looks better than my bit of veroboard.
[09:06] <fsphil> depends on the regulator, some can work with only 500mv above the regulated voltage
[09:06] <fsphil> this one seems to drop around 1v
[09:07] <fsphil> haha, it does look very sweet
[09:07] <jonsowman> how are things looking weather-wise fsphil?
[09:07] <fsphil> horrible :\
[09:07] <jonsowman> oh deare
[09:07] <GW8RAK> That's true, I just put in the first 3.3V regulator I could. I tried to fit an idiot diode, but the 0.7V drop through that caused problems.
[09:07] <jonsowman> *dear
[09:08] <fsphil> with four AA batteries I've got some headroom for doing 3.3v
[09:09] <fsphil> jonsowman, snowed all night - might be iffy getting the helium
[09:09] <fsphil> will see what the roads are like when I'm heading home
[09:22] <jonsowman> :(
[09:22] <jonsowman> hopefully it'll be manageable
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[09:23] <fsphil> yep. everything else is more or less ready
[09:29] <jonsowman> excellent
[09:29] <GW8RAK> Just hoping for better winds now
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[09:41] <jonsowman> yes
[09:41] <jonsowman> hopefully
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[09:56] <fsphil> http://www.sanslogic.co.uk/ssdv/images/2010-12-17--09-47-16-hadie-66.jpeg
[09:57] <jonsowman> hehe :D
[09:59] <fsphil> and the battery has died
[09:59] <fsphil> not bad!
[09:59] <jonsowman> how long was it going for?
[09:59] <fsphil> 8 hours
[09:59] <jonsowman> nice
[09:59] <jonsowman> pretty good
[10:00] <fsphil> with nimh rechargeables
[10:00] <fsphil> gps lasted for 3 hours
[10:02] <fsphil> not sure if lithiums will have the same problem
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[10:17] <jonsowman> what capacity nimhs?
[10:19] <jonsowman> lithiums certainly change capacity significantly less with temperature drop than nimhs
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[10:21] <fsphil> I didn't check, will look when I get home
[10:22] <fsphil> they'd been sitting a while too
[10:23] <jonsowman> fair enough
[10:23] <jonsowman> I suspect you'll get better performance out of the Lis
[10:27] <fsphil> hopefully the head from the camera will help there too
[10:27] <fsphil> head/heat
[10:27] <fsphil> I wonder if it would be worth heading the batteries
[10:27] <fsphil> if the loss in performance more than the cost of keeping them warm
[10:28] <fsphil> head/heat -- again
[10:28] <fsphil> sheesh
[10:28] <jonsowman> I doubt it
[10:28] <jonsowman> especially not Lis
[10:28] <fsphil> yea
[10:29] <jonsowman> the batteries keep themselves warm to some extend by power dissipated in their internal resistances
[10:29] <jonsowman> would be interesting to stick a temp sensors on them and see how cold they really get actually
[10:29] <jonsowman> depends on current draw of course
[10:31] <fsphil> would ineed
[10:31] <fsphil> +d
[10:31] <fsphil> gps is my biggest current sink
[10:32] <fsphil> the camera is probably fairly similar
[10:33] <fsphil> I'd estimate the payload is 100ma total
[10:33] <jonsowman> not too bad :)
[10:37] <fsphil> hmm... I must measure that, the batteries should probably have lasted longer
[11:20] <TraumaPrincess> What kind of efficiency do LiPo batteries get at -30c?
[11:23] <Upu> I think they are good down to -40 ?
[11:23] <Upu> until they explode and destroy your entire project
[11:25] <TraumaPrincess> Ah, neat
[11:37] <juxta> TraumaPrincess, LiPo's are pretty useless once they get cold
[11:37] <TraumaPrincess> How cold is cold?
[11:37] <juxta> not sure - maybe -10 or so
[11:38] <juxta> (at least with the hobby LiPo's i tested with)
[11:38] <jonsowman> LiIons are slightly better but not much
[11:38] <TraumaPrincess> Hrmm
[11:39] <Darkside> as soon as the electrolyte freezes you loose almost all of the capacity
[11:39] <Upu> ignore me I know nothing
[11:39] <Upu> I thought LiPo's were ok colder
[11:40] <Darkside> i've cooles some down to -40 before
[11:40] <Darkside> they were completely useless
[11:40] <Darkside> use litium primary cells, like energizer lithiums
[11:40] <Darkside> they work brilliantly
[11:40] <juxta> easy to get confused, there's are loads of lithium battery chem-mysteries
[11:42] <fsphil> is any rechargeable battery workable at -40?
[11:42] <Darkside> apparently NiMH's work
[11:42] <Darkside> but i haven't tested that
[11:43] <Laurenceb> aiui lipo will workish down to -20
[11:43] <Darkside> well, actually i can tell you that
[11:43] <Darkside> its what Codan use in their HF radios
[11:43] <juxta> NiMh's are pretty poor cold too
[11:43] <Darkside> all of Codans military HF manpacks are rated to -40 degrees C
[11:43] <Darkside> probably won't work as well at that temp tho :)
[11:43] <juxta> are they NiMh or NiCd?
[11:43] <Darkside> use lithium primaries already
[11:43] <Darkside> NiMh
[11:46] <Upu> I'm going to hang my payload on the washing line to night and run it over night got to -8 last night :)
[11:46] <Darkside> haha good test
[11:46] <Darkside> i put mine in dry ice
[11:46] <Darkside> pulled it out at -40 :P
[11:47] <Darkside> ended up never getting that cold for the actual launch, as i had to use a 7805 as my switchmode regs hadn't arrived
[11:47] <Darkside> so the 7805 was just dissipating heat the whole damn time, the inside of the box got to 38 degrees C before launch, and never dropped below -5
[11:50] <fsphil> good idea Upu
[11:54] <Upu> should transmit over night
[11:54] <Upu> I assume the batteries will easily last over night I'm hardly pulling much power
[11:55] <jonsowman> should do
[11:55] <jonsowman> lithium ultimates I assume?
[11:55] <Upu> yes
[11:55] <Upu> x 4
[11:55] <jonsowman> :)
[11:55] <jonsowman> cool
[11:56] <SpeedEvil> Laurenceb: http://www.rc-fever.com/kds-flymentor-3d-p-8296.html
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[11:56] <Upu> right need food
[11:57] <SpeedEvil> http://www.diydrones.com/profiles/blogs/quad-position-hold-with-mouse?xg_source=activity&id=705844%3ABlogPost%3A206819&page=3 also
[11:58] <Laurenceb> interesting
[11:58] <Laurenceb> so its gyro +optical flow
[11:58] <Laurenceb> thats a bit different
[12:00] <Laurenceb> the optical mouse is neat- i was thinking itd need a batter lens than that
[12:01] <Laurenceb> as the AGC on optical mouse sensors is very limited
[12:01] <Laurenceb> you have to consider the brightness and feature size of the terrain in designing the optics
[12:02] <Laurenceb> having said that, i was looking for something to operate from 300 to ~1m altitude
[12:03] <Laurenceb> but yeah gyro + optical flow is an interesting solution
[12:07] <fsphil> optical mouse to track orientation? that's a neat trick
[12:10] <Laurenceb> works pretty well - they are very impressive sensors
[12:10] <Laurenceb> the fairly poor agc is the only weakness
[12:10] <Laurenceb> i was thinking you might be able to use a lcd shutter driven off the led pwm
[12:11] <fsphil> what frame-rate do those sensors work at?
[12:12] <fsphil> might be possible to do something similar with a video camera, at 50fps
[12:12] <fsphil> an avr should be able to capture very small frames
[12:17] <Laurenceb> 1kfps or so
[12:17] <Laurenceb> tbh im not sure if its a problem
[12:17] <Laurenceb> they usually have 8bits or so of gain
[12:18] <Laurenceb> i havent actually tried it , just done the numbers
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[12:21] <SpeedEvil> In principlke, you could just take a standard mouse, and replace the lens to see what happens
[12:22] <Laurenceb> yeah
[12:22] <Laurenceb> if you try with a regular mouse you can track the sun
[12:25] <Darkside> i like how they suggest using IR sensors and stuff for orientation
[12:25] <Darkside> doesn't work in australia :P
[12:25] <Darkside> well, not out where they test most of these UAVs anyway
[12:29] <Laurenceb> http://hackaday.com/2010/12/16/peer-network-using-graphing-calculators/
[12:29] <Laurenceb> ^loool
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[13:33] <Laurenceb> http://www.emdrive.com/flightprogramme.html <- the hell
[13:34] <Laurenceb> i though it was some weird interference ffects but unless thats stright fake data thats some quite large forces
[13:36] <SpeedEvil> yes.
[13:37] <Laurenceb> very odd
[13:38] <Laurenceb> i still dont follow the theory paper
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[13:45] <SpeedEvil> (01:36:26 PM) SpeedEvil: yes.
[13:45] <SpeedEvil> (01:36:39 PM) SpeedEvil: I would be wary of RF getting to the balances though
[13:45] <SpeedEvil> (01:38:00 PM) SpeedEvil: and yes - fake data
[13:45] <SpeedEvil> (01:40:01 PM) SpeedEvil: Note however, because the EmDrive obeys the law of conservation of energy, this thrust/power ratio rapidly decreases if the EmDrive is used to accelerate the vehicle along the thrust vector. (See Equation 16 of the theory paper). Whilst the EmDrive can provide lift to counter gravity, (and is therefore not losing kinetic energy), auxiliary propulsion is required to provide the kinetic energy to accelerate the
[13:45] <SpeedEvil> (01:40:07 PM) SpeedEvil: seems to me to be utter bullshit
[13:45] <SpeedEvil> (01:40:47 PM) SpeedEvil: How does it magically know that you're using it to lift a car, and not slowly accellerate a mountain
[13:45] <SpeedEvil> (01:42:46 PM) SpeedEvil: I'd be a lot happier with a thrust of 1N/300MW
[13:45] <SpeedEvil> sigh
[13:46] <Laurenceb> heh
[13:46] <SpeedEvil> I don't see why it's not a photon drive.
[13:46] <SpeedEvil> Handwave all you like.
[13:46] <SpeedEvil> Totally ignore the structure of the device - it's not relevant
[13:46] <SpeedEvil> Consider the surrounding box, and the EM emitted
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[13:47] <Laurenceb> yeah, gravity and accel are indistinguishable
[13:50] <juxta> SpeedEvil, arent they claiming no EM is emitted?
[13:51] <SpeedEvil> I missed that.
[13:51] <SpeedEvil> My net is going up and down
[13:51] Action: SpeedEvil sighs.
[13:52] <chris_99> soon people will be able to measure gravity with lasers i think?
[13:52] <SpeedEvil> You already can
[13:52] <chris_99> oh cool, do you know what thats called
[13:52] <SpeedEvil> lasers are bent by gravity
[13:52] <SpeedEvil> well - not quite
[13:52] <juxta> seems it's a magic box full of microwaves which provides force without any reaction mass
[13:53] <juxta> (allegedly)
[13:53] <SpeedEvil> but light follows a 'straight' path - which is bent by gravity
[13:53] <chris_99> cool, so i presume they can measure earths gravity correctly
[13:53] <chris_99> with that approach
[13:54] <chris_99> juxta, whats this magic box?
[13:54] <SpeedEvil> http://www.learner.org/courses/physics/visual/animation.html?shortname=PHY03_Torsion_Balance_laser_data
[13:54] <SpeedEvil> though not quite that
[13:55] <juxta> chris_99, http://www.emdrive.com/flightprogramme.html
[13:56] <chris_99> thats pretty nice speedevil, reminds me of a laser mic a bit heh
[13:56] <SpeedEvil> The curvature of space due to a well as shallow as the earth is quite small, and hard to measure
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[13:59] <chris_99> is the fact that light can be bent by gravity one of the indications of a graviton possibly
[14:01] <juxta> has Jimbo's face stopped popping up on wikipedia articles for anybody else, or just me? I've been getting other banners for the last couple of days
[14:02] <chris_99> he's still there for me
[14:02] <chris_99> if you close it, i think it stores a cookie
[14:03] <juxta> I didn't close him
[14:04] <juxta> perhaps you're no longer subjected to his staring once you donate ;p
[14:05] <Laurenceb> give him all your money
[14:05] <Laurenceb> they went back to the creepy banner
[14:05] <Laurenceb> is there a way to flush the pipe to gnuplot whilst a script is executing in octave?
[14:06] <juxta> the banner I'm getting now is still sort of creepy
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[14:12] <SpeedEvil> fflush() or something?
[14:13] <Laurenceb> yes, fflush(something...)
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[14:20] <m1x10> Hi all
[14:20] <Laurenceb> http://pastebin.com/jsF2CESV
[14:30] <SpeedEvil> I have a rod like that.
[14:30] <SpeedEvil> I replied to too many penis enlargement mails.
[14:41] <m1x10> Hi Laurenceb SpeedEvil
[14:41] <SpeedEvil> Hi. How's it going?
[14:42] <SpeedEvil> Still running around, waiting, and being shouted at?
[14:42] <Laurenceb> nned to add buy Viagra steps
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[14:48] <m1x10> I got an epic picture in front of some missiles :Pp
[14:48] <m1x10> http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1188.snc4/151065_1511949483509_1377549819_1223462_3443505_n.jpg
[14:49] <m1x10> Im on guard duty
[14:51] <Laurenceb> lmao
[14:52] <Laurenceb> looks pretty snowy
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[14:54] <m1x10> its cold -6C :(
[14:54] <m1x10> for our standarts
[15:01] <m1x10> where is everybody? Here ppl used to overflood the channel with information and tricky things !
[15:04] <Laurenceb> heh im working
[15:04] <Laurenceb> or attempting to...
[15:05] <_SKiTZO> also known as stfu
[15:06] <m1x10> HADIE 2 SSDV Launch 18/12/10 from An Creagan, N. Ireland
[15:06] <m1x10> I really missed something interesting
[15:06] <m1x10> link to this project?
[15:10] <SpeedEvil> :)
[15:10] <SpeedEvil> I'm also attempting to do stuff, so am mostly AFK - nice pic
[15:10] <SpeedEvil> I'm unsure if the above is actually going ahead
[15:11] <m1x10> what is natrium's full nick?
[15:23] <fsphil> hadie won't be launching this weekend
[15:23] <fsphil> pretty epic snow (for us anyway)
[15:24] <SpeedEvil> natrium42
[15:27] <m1x10> so fsphil hadie is yours! Sorry but I forgot some projects.
[15:27] <fsphil> tis indeed :)
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[15:27] <fsphil> oh btw, I got the linksprite last week
[15:27] <m1x10> hehe
[15:28] <fsphil> Thinking I was being smart, I ordered a 4-pin JST header to solder onto it -- but it came with a 5-pin header and no cable!
[15:28] <m1x10> lol
[15:28] <fsphil> so I can't use it
[15:28] <m1x10> sparkfun has a new camera 1.3MP
[15:28] <m1x10> http://www.sparkfun.com/products/9504
[15:29] <m1x10> Radiometrix sent me their first 144.8mhz 100mw radio module !
[15:31] <fsphil> ooh interesting
[15:32] <m1x10> it has a hard protocol to learn
[15:32] <fsphil> for more resolution than I can use but I wonder how clear it is
[15:32] <fsphil> for=far
[15:32] <fsphil> brb, food!
[15:32] <m1x10> ok!
[15:38] <SpeedEvil> Driftsmelding Det er for √łyeblikket feil i langtidsvarselet for Norge. Derfor varsles det ofte for lav temperatur fra 48 timer og utover. Les mer om temperaturfeilen her.
[15:38] <SpeedEvil> argh
[15:44] <Laurenceb> you're german?
[15:47] <SpeedEvil> no
[15:47] <Laurenceb> im joking
[15:47] <SpeedEvil> http://www.yr.no/place/United_Kingdom/Scotland/Glenrothes/hour_by_hour.html
[15:47] <SpeedEvil> I use as a weatehr forecast, as I've found it convenient and accurate
[15:47] <SpeedEvil> I was wondering what the banner was.
[15:48] <Laurenceb> nice site
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[16:50] <jcoxon> Afternoon all
[16:51] <stilldavid> loved the ZP launch vid, jcoxon
[16:51] <jcoxon> Whole different style of balloon launch
[16:52] <stilldavid> I just read through the Global Western launch guide... you're right about that
[16:56] <jcoxon> Would love to launch more, just not going to happen in the UK
[16:57] <stilldavid> just have to go to Africa more I guess :)
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[16:58] <jcoxon> Meet you there?
[16:59] <stilldavid> sure! I'd love to, really...
[16:59] <jcoxon> How did you find London?
[17:00] <stilldavid> cold :)
[17:00] <stilldavid> was fun thogh
[17:01] <jcoxon> :)
[17:01] <jcoxon> It's got cold again here
[17:01] <Randomskk> cold, icy, snowy and dark
[17:01] Action: Randomskk had a fun drive home
[17:01] Action: Randomskk left work early
[17:03] <stilldavid> I woke up to a nice dusting of snow here as well
[17:03] <stilldavid> and it's still going, albeit lightly
[17:04] <fsphil> evil snow
[17:05] <fsphil> I love snow, but it's timing is terrible
[17:05] <stilldavid> well... debatable. I'm planning on going snowboarding tomorrow :P
[17:06] <fsphil> hmm .. that's an option
[17:27] <SpeedEvil> Is that like waterboarding?
[17:50] <Upu> right
[17:50] <Upu> fingers crossed
[17:50] <Upu> current altitude 1m
[17:50] <Upu> roa 0m/s
[17:50] <Zuph> 3/4" of ice on everything here :(
[17:52] <Upu> http://ava.upuaut.net/files/IMG_5634_resize.JPG
[17:52] <Upu> cold soak test :)
[17:54] <stilldavid> did the death star crash in your yard?
[17:54] <_SKiTZO> how is the HAB usuall disconnected when it bursts, and how is the parachute opened?
[17:55] <Upu> yeah lol
[17:55] <Upu> _SKiTZO the balloon bursts
[17:55] <Upu> parachute is pre deployed hanging there until the fall rate is enough to inflate it
[17:56] <_SKiTZO> ah
[17:56] <Upu> temp sensors still think it's 6'c out there and it's actually -4
[17:56] <_SKiTZO> and the remains of the ballon hang there too then?
[17:56] <Upu> yeah sometimes and they can get caught so some people use pyro cut downs
[17:56] <Upu> detect the moment it bursts and cut the wires
[17:56] <_SKiTZO> mhm
[17:56] <Zuph> _SKiTZO: Yep, got to be careful to make the line to the balloon long enough to minimize risk of fouling the chute.
[17:57] <_SKiTZO> :)
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[18:08] <fsphil> max altitude 287 m .. you've already got higher than my own payload
[18:09] <Upu> lol
[18:09] <Upu> yeah I am on a hill :)
[18:09] <Upu> 18'C internal 0'C external
[18:09] <Upu> temp sensors are really slow to catch up
[18:10] <Upu> right afk shower
[18:10] <Upu> if it moves someones stolen it call the police :)
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[18:24] <Upu> yay got -ive temp
[18:25] <GW8RAK> If you're desperate, you can have some of my -ve temps
[18:25] <Upu> lol well it means my code is fine :)
[18:25] <Upu> My payload is hanging off the washing line in the back garden undergoing some tests
[18:26] <GW8RAK> For years I've been meaning to build a temp logger and it only a few weeks ago that I finally got around to it.
[18:26] <GW8RAK> I thought it was broken as it was only recording -ve temps
[18:26] <fsphil> ooch
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[18:46] <Dave-M0MYA> evening
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[20:40] <Lunar_Lander> hello
[20:42] <jonsowman> sorry to hear the launch has been postponed fsphil
[20:42] <jonsowman> had more snow?
[20:42] <fsphil> a record amount of the stuff
[20:42] <jonsowman> blimey
[20:42] <fsphil> I do like snow but the timing is awful :)
[20:42] <jonsowman> I saw this: http://www.metoffice.gov.uk/weather/uk/uk_forecast_warnings.html?day=1
[20:43] <jonsowman> how much of it have you got there?
[20:43] <fsphil> yea - we got a warning for flash snow -- I'm not even sure what that is
[20:43] <jonsowman> hehe
[20:43] <Lunar_Lander> maybe something like a Blizzard
[20:43] <Lunar_Lander> only not so fast
[20:43] <fsphil> about 8 inches
[20:43] <jonsowman> wow
[20:44] <fsphil> we don't normally get that much snow at all, so this came as a bit of a surprise
[20:44] <jonsowman> i bet
[20:44] <jonsowman> oh well, launch soon I hope :)
[20:44] <fsphil> definitely, have emailed the caa already
[20:45] <jonsowman> excellent
[20:45] <fsphil> it's /bound/ to be clear by then :)
[20:46] <Lunar_Lander> does the leader of the Dutch team still come on here?
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[20:47] <m1x10> I just learnt that tomorrow I have to go to the camp at 10 o clock !
[20:48] <m1x10> that means I can stay a bit more on the web :)
[20:48] <Lunar_Lander> army?
[20:53] <m1x10> yes
[20:55] <m1x10> Lunar_Lander: http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1188.snc4/151065_1511949483509_1377549819_1223462_3443505_n.jpg
[20:56] <Lunar_Lander> whoa
[20:56] <Lunar_Lander> snow in Greece!
[20:56] <m1x10> its on a mountain :)
[20:56] <Lunar_Lander> yeah
[20:56] <Lunar_Lander> ID running...
[20:56] <Lunar_Lander> probable weapon
[20:56] <m1x10> thats me of course :)
[20:56] <Lunar_Lander> Armalite AR-15/Colt M16
[20:56] <m1x10> lol
[20:56] <m1x10> gun is A3G3
[20:57] <Lunar_Lander> ah
[20:57] <m1x10> I think you got my facebook
[20:57] <Lunar_Lander> yes I think so
[20:57] <m1x10> check my pics there
[20:57] <m1x10> Kevin glinka right?
[20:59] <Lunar_Lander> yes
[20:59] <Lunar_Lander> found it!
[20:59] <Lunar_Lander> :)
[21:00] <Lunar_Lander> in that control room
[21:00] <Lunar_Lander> which button fires the missiles?
[21:00] <Lunar_Lander> xD
[21:00] <m1x10> haha
[21:00] <m1x10> its called FDC - fire distribution center :p
[21:00] <Lunar_Lander> yeah
[21:01] <Lunar_Lander> and you probably need a key or something to arm the system
[21:02] <Lunar_Lander> btw you surely know the ESRANGE?
[21:02] <Lunar_Lander> the balloon and rocket range of ESA in sweden
[21:03] <m1x10> dunno
[21:03] Nick change: Guest88489 -> The-Compiler
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[21:04] <Lunar_Lander> they have a funny FAQ
[21:04] <Lunar_Lander> something like
[21:04] <Lunar_Lander> "Can I come and watch a rocket launch?"
[21:04] <m1x10> in order to control the launcher you plug in a laptop like device that runs a DOS software
[21:04] <Lunar_Lander> yea
[21:04] <m1x10> its funny
[21:04] <Lunar_Lander> yeah
[21:06] <Lunar_Lander> and they use American and Brazilan rockets
[21:06] <Lunar_Lander> though the Brazilians are stronger
[21:06] <Lunar_Lander> xD
[21:08] <m1x10> lol
[21:08] <Lunar_Lander> and there was a question
[21:08] <Lunar_Lander> "is the rocket crash area fenced?"
[21:09] <Lunar_Lander> and answer was something like
[21:09] <Lunar_Lander> "The impact area is often used for hiking and fishing, though no permanent dwellings are allowed there"
[21:09] <Lunar_Lander> I want to see the fisherman who spots a booster case falling from the sky
[21:14] <m1x10> omg
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[21:34] <Lunar_Lander> and how is your balloon progressing?
[21:35] <Lunar_Lander> m1x10
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[22:07] <Lunar_Lander> m1x10 ?
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[22:14] <m1x10> sory
[22:14] <m1x10> i slept
[22:14] <m1x10> slow progress
[22:14] <m1x10> i need to close
[22:14] <m1x10> i have some pics on fb
[22:14] <m1x10> bye all
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[22:39] <chris_99> someone posted something earlier about microwave propulsion i think, this video is pretty cool relating to that
[22:39] <chris_99> http://www.technologyreview.com/blog/mimssbits/25701/
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[22:40] <Lunar_Lander> hello natrium42
[22:40] <natrium42> hi
[22:40] <Lunar_Lander> messages have been received
[22:40] <Lunar_Lander> http://pastebin.com/FVnTKDtB
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[22:45] <Lunar_Lander> hello james
[22:46] <jcoxon> Hey
[22:46] <Lunar_Lander> how's life?
[22:50] <jcoxon> Not bad thanks
[22:51] <Lunar_Lander> same here
[22:51] <Lunar_Lander> I actually just received an E-Mail by someone who wants to make a HAB project
[22:52] <jcoxon> Oh yeah...
[22:53] <Lunar_Lander> he wants to know where that 7500 some value of the density model comes from
[23:06] <natrium42> so... no launches before xmas :(
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[23:08] <fsphil> I think Tim might be launching on sunday
[23:08] <Lunar_Lander> yes
[23:08] <natrium42> orly?
[23:08] <Lunar_Lander> he didn't write in his blog for a few days now though
[23:12] <SpeedEvil> My chances of a launch before christmas currently stand at 10^34 against, and dropping.
[23:13] <Lunar_Lander> and launching in 2010=
[23:13] <Lunar_Lander> ?
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[23:18] Nick change: SpeedEvil1 -> SpeedEvil
[23:21] <Lunar_Lander> good night
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[23:33] <Upu> Woo well my payload is currently in the garden getting snowed on but it's been transmitting fine for 5 hours, nice cosey 7'C inside the container but -1'C outside
[23:33] <SpeedEvil> :)
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[00:00] --- Sat Dec 18 2010