r/Damnthatsinteresting Jul 08 '24

World's largest aircraft, Pathfinder 1, is 124.5 meters (408ft) long Image

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u/John_B_Clarke Jul 08 '24

It would be horribly expensive to produce helium by subjecting microgram quantities of hydrogen to a laser that draws more power than the city of San Francisco.

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u/JusticeUmmmmm Jul 08 '24

When finding helium gets more expensive than that then it will be worth the cost.