Eli5 Why is it easier for people (kids notably) to put their head between two bars but harder to get it out?
In: Physics
The top of the head is rounded, making it easy to gradually bend bars apart a little to allow the head to slip past. The jaw, on the other hand, is a jutting and angular bone structure. It’s hard to get that to slip into a gap without a lot of pain and risking injury.
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