why can you stick different parts of your body(head, hand, finger) in small gaps really easily but you can’t take them back out?
In: Physics
The joints between your bones can compress easily and distribute the force when you’re pushing the body part into a gap. However, pulling it out pulls at the closest or weakest joint, causing a lot more pain.
Also, the body part may swell due to blood pooling due to the constriction or inflammation if you injured the part when pushing it through the gap. This makes it much more difficult to pull the swollen body part out.
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