2bd0 Cats will help scientists to create a "licking" robots
Cats will help scientists to create a "licking" robots

American sccat_lapping_waterientists have been able to figure out how cats can be so neatly lapping water. They were carefully watching ten domestic cats at the time when they drink water, and developed a model that reproduces the movements of their tongue.

Cats and dogs are drinking differently. Dogs are drawing water with their whole tongue curved, while cats only slightly bent the tip, which touches the water. When the cat pulls it from the water, there is always a small amount of moisture left on the tip of the tongue, which, due to the influence of gravity should be falling off. However, the animal is fast enough to close the mouth without letting a drop to fall.

The cat knows how fast she has to swill, to avoid losing the moisture. If the cat will be too slow and close her mouth just a little bit later, she may lose the water, that was adhering to her tongue.

During the experiment scientists instead of the tip of the cat's tongue were using a disc, which, moving away from the water, was pulling over a column of liquid. Scientists have calculated the speed and frequency of the cat's licking. It turns out that wanting to quench her thirst, the cat moves her tongue four times in a second.
Scientists are planning to use their discovery to create a new biochemical robots that can, for example, collect the oil from the water surface.

 
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