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Cursitor Doom[_4_] Cursitor Doom[_4_] is offline
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Default Value drift over time

On Mon, 20 May 2019 08:11:31 +0100, Mike Coon wrote:

In article ,
says...

Hydrogen atoms are really really small.
Trying to keep hydrogen in or out is always problematic.


In practice you get molecules on the two-fer principle which are much
bigger. Helium is bad too because then the atoms come at you singly...


May seem counter-intuitive, but hydrogen is not actually the smallest
atom. Heliums come singly alright, which is one of the reasons, along
with small size, they're used for this kind of leak testing.



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