Anything that’s lighter than air will float.
A liter of air at sea level weighs about 1.25 grams; a liter of helium, though, is only .18 grams.
Therefore the air sinks below the helium balloon, causing it to fly upward.
by Karen Hill
Anything that’s lighter than air will float.
A liter of air at sea level weighs about 1.25 grams; a liter of helium, though, is only .18 grams.
Therefore the air sinks below the helium balloon, causing it to fly upward.
Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.
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