Stuff You Should Know
Stuff You Should Know Animated: How Subways Work
Join Josh and Chuck on a trip through the history of three of the world's best-known subway systems: the London Underground, the Paris Metro, and the New York City subway. Plus, what does horse manure have to do with all of this?
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Stuff You Should Know: Can Chuck Feel Josh's Pain?
People with mirror-touch synesthesia literally feel the pain of others -- but why? Tune in as Josh and Chuck explain the fascinating mechanics of mirror neurons in this exclusive video from HowStuffWorks.com and the Science Channel.
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