What's an order of magnitude among friends?
Posted Feb 20, 2013 0:49 UTC (Wed) by man_ls
In reply to: What's an order of magnitude among friends?
Parent article: Quotes of the week
Helium is the second most inert of all gases so it is not hard to contain. Hydrogen (as said below) or even liquid helium (as you can read on the wikipedia) are harder. With helium gas you just seal the container and it just stays there, without condensing or interacting with the walls or other gases; it shouldn't be harder than creating a vacuum.
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