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The Balloons of Ancient Egypt (lemmy.world)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 18 points 3 months ago (9 children)

Because they definitely had a good supply of helium and/or hydrogen laying around to fill these balloons with, when levers and wheels were too advanced.

Right.

[–] [email protected] 3 points 3 months ago (6 children)

You know you can make hydrogen out of water right? You just need high voltage electricity.

[–] HeckGazer 1 points 3 months ago

You need high current, not voltage. Electrolysis of water starts somewhere around 1.5V

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