00:00You would pack shoulder to shoulder in a giant circle,
00:03and the outer layer would face deadly cold winds,
00:06while the inner group would be warmed by body heat.
00:09But the layers of the circle would have to keep switching,
00:12slowly moving people from the outside into the center of the group.
00:15If a person spent too long on the outer layer,
00:18they would die from the cold,
00:20leaving the inside exposed to the wind.
00:22Now, penguins have layers of thick fat and feathers
00:25to keep them warm during this,
00:27but the human body isn't as good at keeping the cold out.
00:31So each person would need to constantly wiggle their feet
00:33and squeeze their calves to produce heat.
00:36Otherwise, everyone would freeze to death in hours.
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