Roll at 107,000 feet

[zippyman818]

Easy enough to check with digital NRO archives.

[valiumsummer]

I would bet 1000 dollars that that is pyramid lake Nevada @ 31:00

[MSLTUL]

Gravity wins again.

[SKYSURVEYOR]

nice ;)

search : OMG UFO

[szymusiek1980]

what are those flying white parts?

[3IDLukeK]

@szymusiek1980 the balloon?

[blakshadow5]

@szymusiek1980 umm.... the balloon? that burst?....?

[zippyman818]

Hydrogen production is not as speculative as it seems on this page. Someone is off by a factor of WoW.

[zippyman818]

What's the body of water at 00:33

[cerrutiboy1]

@zippyman818 the dead sea i suppose

[valiumsummer]

@zippyman818 My best guess is pyramid lake Nevada, looking Southwest towards CA.

[piranha031091]

DO A BARELL ROLL!

Nice vid! I am planning to do the same soon, though it probably won't go as high! (I already got an efficient way to produce home made hydrogen, using aluminum and sodium hydroxide).

[iwacthyourcrap]

@piranha031091 you got to be kidding me, the amount of heat produced by sodium hydroxide and aluminium would be substantional, youd need a huge water bucket to syphon all the hydrogen to cool it down, and then also around 30kg of aluminium and loads of sodium hydroxide to make the required amount of gas to get anything that high....if you do though send me the video, i liked to be proved wrong

[piranha031091]

@iwacthyourcrap @piranha031091 according to my calculations, M(N2) = 28 M(O2) = 32 Mmoy(Air) = 28.8 g/mol Vm = 24 L/mol ρ(air) = 28.8/24 = 1.2 g/L M(H2) = 2 ρ(H2) = 0.08 g/l ∆ρ = 1.12 g/L V = 256.8 L ∆m = 308.2 g n = 10.7 mAl = 288.9*2/3 = 192.6 g mNaOH = 285 g m(baloon)=118.5g ∆m(tot)=189.7 (I suppose the abbreviations I used are instinctive enough to be understood) This means I'd need 196g of aluminum and 285g of sodium hydroxide to get 265.8 liters of hydrogen.....

[assman12354]

let me ask you something- would it be possible to take people in a balloon to a altitude of like 80,000, and then purposly burst that balloon and inflate a smaller balloon so that the people in the capsal undernieth could slowly fall back to earth with out getting hurt?

[piranha031091]

@assman12354 Yeah, with a few million dollars of budget...

(But I heard some guys already jumped with a parachute from high altitude balloons)

[yamahonkawazuki]

@assman12354 in theory perhaps. but the bouncing might be a bit of a bitch. tbh a balloon to 80, then detach and freefall and a parachute of some sort. would be mroe practical. hell they used parachuts and freefall in the mercury, and apollo programmes, as well as the soviet era capsules

[piranha031091]

@iwacthyourcrap And I've already partially built the cooling system (using cold water flowing through a copper tube. A bucket wouldn't allow the mix to be cooled fast enough) and a filter to remove sodium hydroxide particles from the hydrogen.

I do not intend to go that high, and still have some problems to solve. I hope I will overcome these before next summer.

(BTW, sorry, but youtube messed up a bit my previous comment, making my calculations hard to read)....

[piranha031091]

@iwacthyourcrap Oh, and by the way, the reaction' equation is

2Al + 2OH(-) + 2H2O = 3H2 + 2AlO3(-)

So we're sure we're talking about the same thing.

[TheOv3rlordK1ng]

cant u float a baloon up, then when it reaches altitude and pops, then have a little device that fires up some boosters to push it into space?

[pbplaya5]

that's erie. but so awesome

[bradleycpttd]

Did you use some special kind of balloon? This would be pretty interesting to do at home. Good video!

[alasdairiainclark]

not sure that 107000feet up is actually classed as 'home' - even if you were directly above!

[bradleycpttd]

obviously you missed my point. At home, meaning you inflated the balloon on the ground at home and let it float up 107,000 feet. Duhh!

[alasdairiainclark]

right - would never have realised, thanks for telling me.

The baloon obviously will expand greatly at altituse, to around the size of a sports stadium and needs to be made of very thin plastic, in essence though it's just a giant polly-bag with a bit of helium in it. (don't know why not Hydrogen - perhaps someone can enlighten me)

So if you had a giant baloon and a large supply of He then, if your garden was big enough and you were able to build a release mechanism then yes. See Lj2xYjjGF08&NR

[Mpower330csl]

Hydrongen is highly flammable thats why they use helium