字幕列表 影片播放 列印英文字幕 We all know cats always land on their feet. But how far can a cat fall and still survive? Humans that fall over 10 stories only have a 5% chance of survival. Cats falling from the same height have a 5% chance of dying. This doesn't mean to throw your cat off a building to test this. Biologists have already done that. In a 1987 study of 132 cats that fell "accidentally" out of skyscrapers, 90% of them survived. One cat fell 32 stories onto a concrete sidewalk and suffered only a chipped tooth and a collapsed lung. What is even more interesting is the fact that the farther the cat falls, the higher its chance of surviving is. At first this is slightly counterintuitive. The farther you fall, the move you will accelerate, and the harder you will hit the ground. so how can a cat falling from 10 stories have a high chance of surviving than a cat falling from 3 stories? Well the answer to that question is: Terminal velocity. Terminal velocity occurs when the resistance force of the air you are falling though equals the downward force of gravity. You stop accelerating once you reach this velocity. Unfortunately for humans, this velocity is around 120mph. Surviving a crash at this speed is quite unlikely. However the terminal velocity of cats is only half of that at 60 mph. But that doesn't explain how cats have a higher chance of surviving at 10 stories versus 3 stories. Well, that's because cats can sense acceleration; when a cat is falling and accelerating downward, it can sense that. It has a sense that is able to detect whether it is accelerating or not when the cat is not accelerating anymore, AKA reaches terminal velocity it relaxes it's body more and the impact is not a rigid Let's walk through a hypothetical situation of a cat falling from a skyscraper. The cat jumps off and rotates herself around so her feet are underneath her. At this point the cat is kind of freaking out because she knows she is accelerating downward. Her limbs are tight and if she were to hit the ground now, she would suffer more injuries due to her stiffened body. But as she falls farther, she reaches terminal velocity impact. She walks away with minimal injuries and hits the catnip.
B1 中級 美國腔 貓咪能從飛機上掉下來,還能活下來? (Cats Can Fall From Planes and Survive?!) 158 8 Kevin Wan 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字