3

The key, I think, is the relationship between energy transferred and the ability of the receiving tissue to tolerate it. For example, although the overall kinetic energy of a knife is relatively low the tip/blade pressure is extremely high, more than high enough to part tissues and, critically, cut through arterial walls causing fatal bleeding. Drowning is ...


2

I had an uncle that could do this trick, and it always amazed me. Perhaps it's obvious, but I should mention that they always use a sword with a dull blade.


1

As the doctor in the other answer has clarified, without any study, it's not possible to reliably evaluate the safety of eating bones of large fish. Bones of large fish are not considered edible for humans, so I doubt anyone has done any study about this. Without a study, you can only guess. A fish bone can get stuck above the epiglottis (case report, ...


1

It's often difficult to tell the difference between an esophageal abrasion and a foreign body just by how you feel. If you get it checked out and it's just an abrasion, no biggie; if you don't and it's a foreign body, it could result in infection or perforation. From an EM website: All patients who complain of a foreign body of the throat should be ...


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