[MLB-WIRELESS] Balloon AP

[Ben Grech]

From: "Donovan Baarda" <abo at minkirri.apana.org.au>
To: "Clae" <clae at tpg.com.au>

> On Thu, 2003-01-02 at 18:10, Clae wrote:
> > Helium leaks.
> >
> > Being the smallest molecule in the universe, helium readily migrates
> > out through the molecular gaps in just about any balloon envelope,
> > and thus your balloon will have a finite time aloft per filling.  You
> > might consider adding a hose for remote filling, but helium is
> > expensive too.
>
> Not meaning to be picky, but being picky anyway :-),
>
> isn't hydrogen smaller than helium?

Sure! Just that Hydrogen atoms hang around in pairs while Helium atoms are
loners. ;-)


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