How An Igloo Keeps You Warm

If you ever find yourself stranded in the snowy Arctic (or bored in Minecraft), you’re gonna need to know how to build an igloo. But how can building a house made of ice keep you warm? The science behind building an igloo is the same reason that otters and reindeer don’t freeze to death!


There really ARE 50 Eskimo words for snow:

PBS Idea Channel – An Infinite Number of Words for Snow…

Why there’s no such thing as cold:…

How early humans settled the Arctic:…

How to build a scientifically perfect igloo:…


It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.

Twitter: @okaytobesmart @DrJoeHanson
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Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock