How did you find the locator in bats? Detailed answer

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How did you find the locator in bats? Detailed answer

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How did you find the locator in bats?

Most bats are nocturnal. They fly out at night in search of food. For centuries people have watched bats wondering how they find their way in the dark. And how do bats manage to find a flying insect and catch it in flight without light? Many believed that bats have very sharp eyesight and they see what is hidden from humans. But now scientists have proven that the ability of bats to navigate in the dark is not connected with vision, but with the ears and vocal organs.

In 1780, the Italian zoologist Spallanzani did an experiment. He blindfolded several mice and released them in a room with crossed silk threads. They flew through this maze without hitting the threads. Then the scientist tied the ears of the mice, and they became tangled in the nets. Spallanzani realized that bats use their ears more than their eyes to find their way in the dark.

In 1920, a scientist suggested that bats give a signal that the human ear does not perceive. This signal is called ultrasonic. In 1941, two other scientists decided to use a new electronic device that captures ultrasonic signals in experiments with bats. The device showed that mice emit a high-frequency cry and they do it constantly, flying through a labyrinth of wire stretched in the dark. When scientists sealed the bats' mouths, they couldn't fly the right way.

Bats emit a high-frequency signal that bounces off everything in its path. In other words, the sound comes back. This is an echo. Mice use this echo to locate objects in the dark. Scientists call this echolocation, it is very similar to radar installations.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

When did the first attempt to launch a jet aircraft with a person on board take place?

According to legend, after the Chinese in the X century. received a composition for launching firework rockets, the inventor Wang Hu built an aircraft from two paper dragons, to which he attached 42 such rockets. A seat was also arranged between the two dragons, on which Wang Hu decided to take to the air. When all 42 rockets were set on fire at the same time, the inventor, along with the dragons, quickly turned into ashes.

In 1930, in England, F. Whittle patented the jet engine he developed and began its development. In Germany, Hans von Ohain patented his version of such an engine in 1936. The two men worked independently, and by the end of World War II, both Germany and Britain were building jet aircraft.

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