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I3-33 HELIUM BALLOON ON LIQUID NITROGEN 10 years 3 months ago #136

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ID Code: I3-33
Purpose: Demonstrates how a gas contracts when cooled
Description: A helium balloon which is cooled by a liquid nitrogen bath becomes becomes more dense -- by about a factor of 4. When the balloon is removed from the liquid nitrogen it warms up, expands, and floats away, unless it is tethered
Availability: Available

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Last edit: by zzfixk21.
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