On 2022-11-03 14:38, David Wright wrote:
You still don't get it, the helium molecule is so small it wiggles
thru a steel walls huge molecules
like they were a layer of felt. Monel alloy is denser but it still
leaks.
I haven't done the experiments, but others, like this pair, have.
https://www.sciencedirect.com/science/article/abs/pii/0042207X61900185
I know next to nothing about this stuff but it helps me to think that
rather than everything made of little things that it's clouds of god
knows what swirling about.
mick
