These tiny packets are able to give off a lot of heat for a few hours thanks to the same process that causes rust to form -- just sped way up. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/disposable-hand-warmers.htm
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NFL.com's "Around the NFL" crew (Gregg Rosenthal, Dan Hanzus and Marc Sessler) break down the latest football news, with a dash of mirth.
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