this post was submitted on 19 Mar 2025
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Helium is portrayed as second most abundant element in the universe. Not scarce at all. Our ability to collect and make use of it, that's scarce.
A squirrel would probably need about 100 balloons.
Second most abundant doesn’t really convey how much more abundant it is compared to other elements.
About 75% of all the mass in the universe is hydrogen, about 23% is helium, 1% oxygen, and that leaves just 1% for everything else.
Next useless project: design a small rigid airship for roadkill disposal.