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How animals dry their fur
The researchers found that shaking off her wet fur, mammals develop a centrifugal acceleration, which is ten times the acceleration of gravity. The work of researchers published in the journal of the Royal Society Interface, and its summary results in Nature News.
To understand the mechanism by which animals manage to dry the wet fur, the scientists poured water 16 representatives of mammals from the nearest zoo and recorded their behavior on a high speed camera. Among the participants of the experiment had dogs, mice, tigers and kangaroos. In addition, the authors collected a robotic simulator that reproduced the same steps in the laboratory.
It turned out that the medium-sized dog in only 4 seconds of "shaking" removes hair up to 70 percent water. Thus the water droplets are accelerated from 10 to 70 g, therefore, to avoid damage, the animals have to close their eyes.
The smaller the mammal, the faster it needs to move — this is due to the smaller radius, around which the rotation occurs. If a kangaroo does about 5 turns per second, the rat — 18, a mouse 27. They are able to adjust the frequency of their movements, to ensure drying of the least amount of energy.
Source: /users/104
To understand the mechanism by which animals manage to dry the wet fur, the scientists poured water 16 representatives of mammals from the nearest zoo and recorded their behavior on a high speed camera. Among the participants of the experiment had dogs, mice, tigers and kangaroos. In addition, the authors collected a robotic simulator that reproduced the same steps in the laboratory.
It turned out that the medium-sized dog in only 4 seconds of "shaking" removes hair up to 70 percent water. Thus the water droplets are accelerated from 10 to 70 g, therefore, to avoid damage, the animals have to close their eyes.
The smaller the mammal, the faster it needs to move — this is due to the smaller radius, around which the rotation occurs. If a kangaroo does about 5 turns per second, the rat — 18, a mouse 27. They are able to adjust the frequency of their movements, to ensure drying of the least amount of energy.
Source: /users/104
