失意体前屈 颜文字 om:猫为什么有九条命?

Why do people say that cats have nine lives?

　　Some people believe in the superstition that cats have nine lives, because cats can survive falls from high places with few, if any injuries. This gives the appearance that the cats return to life after sustaining a fatal accidents. Granted, they may sustain minor injuries, such as bloody noses, cracked teeth, or a few broken ribs, but they live to recover.

　　The ability of the cat to survive these accidents that would kill humans or other animals is not due to multiple lives, but to several advantages they possess. Their small size and low body weight soften the impact as they make contact with the ground after falling from great heights.

　　The highly developed inner ears of cats equip them with an unusually keen sense of balance, which is critical to their landing on their feet. This sense of balance allows a cat falling upside down to right himself by rapidly determining his position, repositioning himself, and making any adjustments necessary to ensure that he lands on all fours.

　　Since cats land on all four paws, the impact from landing on the ground is absorbed by all four. Additionally, cats bend their legs when they land, which cushions the impact by spreading the impact, not only through bones that could easily break, but through the joints and muscles as well.

　　Most are surprised to learn that a cat stands a greater chance of survival if it falls from a higher place than from a lower place. New York veterinarians gathered data from their feline patients, which clearly supports this fact. Ten percent of their patients died after falling from 2-6 stories, while only five percent of the fatalities occurred when their patients fell from 7-32 stories

　　Laws of physics explain why these survival rates vary. All falling bodies, regardless or their masses, accelerate by 22 miles per hour per second of their falls. The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity," because the object's friction with the air slows the fall. The smaller the object's mass, and the greater its area, the more it will slow.

　　A cat falling from a higher floor, after it stops accelerating, spreads its legs into an umbrella shape, which increases the area against which the air must push and increases the friction, thus slowing the cat's fall. Through the cats highly developed sense of balance, he buys more time to maneuver his body in preparation for landing on all fours. A cat falling from a lower height does not have the opportunity to increase its body's area, slow its fall, or position his body to land on all four feet.
　　So cats have nine lives!

猫并没有九条命 只是一开始人们不知道猫从高处掉下不会死 而看到猫从高处掉下而没死 就是这种说法的由来

这是来源一格日本传说，即九尾猫妖，讲的是猫没过九年就会长出一只尾巴，当连续9个9年的时候，它就会成妖。就是九命猫妖。
如果在其中的一年它死了的话，就会少长一条，共有九条，即九命。

ps，现在活得最长的猫已经34岁，并且还活着。
爱护动物，保护动物。不要用猫做实验！！

九通久，是说猫的命久的意思。其实，猫并没有九条命 只是一开始人们不知道猫从高处掉下不会死，而看到猫从高处掉下而没死，就是这种说法的由来。

Why do people say that cats have nine lives?

Some people believe in the superstition that cats have nine lives, because cats can survive falls from high places with few, if any injuries. This gives the appearance that the cats return to life after sustaining a fatal accidents. Granted, they may sustain minor injuries, such as bloody noses, cracked teeth, or a few broken ribs, but they live to recover.

The ability of the cat to survive these accidents that would kill humans or other animals is not due to multiple lives, but to several advantages they possess. Their small size and low body weight soften the impact as they make contact with the ground after falling from great heights.

The highly developed inner ears of cats equip them with an unusually keen sense of balance, which is critical to their landing on their feet. This sense of balance allows a cat falling upside down to right himself by rapidly determining his position, repositioning himself, and making any adjustments necessary to ensure that he lands on all fours.

Since cats land on all four paws, the impact from landing on the ground is absorbed by all four. Additionally, cats bend their legs when they land, which cushions the impact by spreading the impact, not only through bones that could easily break, but through the joints and muscles as well.

Most are surprised to learn that a cat stands a greater chance of survival if it falls from a higher place than from a lower place. New York veterinarians gathered data from their feline patients, which clearly supports this fact. Ten percent of their patients died after falling from 2-6 stories, while only five percent of the fatalities occurred when their patients fell from 7-32 stories

Laws of physics explain why these survival rates vary. All falling bodies, regardless or their masses, accelerate by 22 miles per hour per second of their falls. The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity," because the object's friction with the air slows the fall. The smaller the object's mass, and the greater its area, the more it will slow.

A cat falling from a higher floor, after it stops accelerating, spreads its legs into an umbrella shape, which increases the area against which the air must push and increases the friction, thus slowing the cat's fall. Through the cats highly developed sense of balance, he buys more time to maneuver his body in preparation for landing on all fours. A cat falling from a lower height does not have the opportunity to increase its body's area, slow its fall, or position his body to land on all four feet.
So cats have nine lives!