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HeliumSave for later
Hank talks about everyone's favorite squeaky-voice gas and why it's important for more than party balloons.
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For further reading:
"U.S. government agencies work to minimize damage due to helium-3 shortfall," Toni Feder, Physics Today October 2009, page 21
"Nation's helium reserve running on empty?" Leslie Tamura, Washington Post, Oct.11, 2010
Produced by Hank Green
Chief Editor: Blake de Pastino
Cinematographer: Nick Jenkins
Video Editor: Matt Ferguson
Graphics: Amber Bushnell
Written by Rob Chaney
TAGS: scishow, science, technology, chemistry, physics, element, helium, large hadron collider, LHC, MRI, strategic helium reserve, dolomite, texas, helium-3, nuclear weapons detection, taylor wilson, bomb detector, lando calrissian, balloon
Teacher: Hank Green
Target Audience: Unspecified
Created on 06/18/2012 by scishow
Knowmia's Editor Note:
Hank correctly states that Helium is the second most abundant element in the universe, but doesn't answer why it's so rare on Earth. The answer is that it's lighter than the atmosphere on Earth, and so it just floats away in to space. The only Helium we can capture was produced by radioactive decay and is trapped underground where it can't float away.
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