[ham] Re: [Rhodes22-list] Gas vs Liquid Battens

[ronald]

A problem with hydrogen and helium is that they are very small small 
molecules which
will diffuse through most thin material. Of course mylar helium balloons 
still will float
so there would be a net gain, but probably not worth the effort.  A 
hydrogen-filled sail
could be a real disaster in a thunderstorm. The advantage of helium
is that you could breath in the excess sail gas and talk like Donald 
Duck.

Ron

On Wednesday, December 25, 2002, at 08:42 PM, Michael Meltzer wrote:

> hydrogen is highly reactive too, might corroded or change the fabrics(I 
> sure Rodger will get on me for this, remember the hinaburge
> :-) problem is pure helium is expensive and would have to way to 
> recover it, on the other hand hydrogen is cheap and a by product of
> adicd reactions, could have a generator on board. Any system will be 
> leaky so it will need to be topped up. Could even make the
> stuff with a solar panel(they doing it for fuelcells). Beside your get 
> more lift from the hydrogen. The stuff is lighter then
> air(the whole point :-) to will not crowd the deck or cabin, just need 
> a controled blowout, like gas in the lasserret :-)
>
> MJM
>
>
> ----- Original Message -----
> From: <R22RumRunner@aol.com>
> To: <rhodes22-list@rhodes22.org>
> Sent: Wednesday, December 25, 2002 8:22 PM
> Subject: Re: [ham] Re: [Rhodes22-list] Gas vs Liquid Battens
>
>
>> MJM,
>> If my high school science doesn't fail me, I believe hydrogen is highly
>> flammable. How about using something like a nonflammable helium?
>>
>> Rummy
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