eli5, Why do people refer to bite strength in PSI ?

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So I was looking at another answer and it indicated that polar bears have a bite of 1200PSI.
This seems crazy, even a small force crushing something between the edges of two teeth would generate a huge PSI value.

Why do they use PSI, shouldn’t it be lbs-force (well OK it should be newtons, but that’s another issue)?

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Anonymous 0 Comments

Why would you care about only the force? The pressure absolutely matters. If you have 1000 lbs of force spread out over 1000 people, then you’re not going to do much damage.

It is a pet peeve of mine when they describe it as “bite force” in units of pressure, but pressure is a relevant unit.

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