How many eyes does a scorpion have? Detailed answer

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How many eyes does a scorpion have? Detailed answer

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How many eyes does a scorpion have?

Representatives of different types of scorpion have from 6 to 12 eyes. On the shell-covered cephalothorax are a pair of median and several pairs of lateral eyes. And at the same time, scorpions are blind, which does not prevent them from grabbing small insects with amazing dexterity in the darkness of the night.

Studies by Californian zoologists have shown that the scorpion owes the accuracy of its throws to the supersensitive organs located on its eight legs - hairs and crevices. With their help, he catches the tremors of sand from the paws of his future prey.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

When was aluminum foil invented?

Tobacco King R. R. Reynolds' nephew Richard R. Reynolds obtained 1947 mm thick aluminum foil in 0,0175 and used it as a packaging material. Since then, foil has triumphantly marched around the world. More than 100 tons of aluminum foil are produced and processed daily.

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The harm of music before bed 27.06.2021

Michael Scullin, professor of psychology and neuroscience at Baylor University, conducted a study on sleep patterns. In his work, Dr. Scullin studied the relationship between music indulgence before bed and the quality of sleep. The main topic for study was the phenomenon of "ear worms": obsessive repetitions of the same melody that "gets stuck" in our head and involuntarily scrolls through the brain over and over again.

Usually we can notice this during the daytime, but Dr. Scullin has proven that the same problem happens to us in our sleep. At the same time, the quality of sleep becomes worse and it does not bring the proper benefit to the body.

The scientist based his conclusions on experiments with volunteers, in which more than two hundred people participated, answering various questions about musical habits and sleep quality. All of these music lovers experienced earworm syndrome.

In addition, fifty volunteers were invited to conduct the experiment at the Neurobiology and Cognitive Research Laboratory at Baylor University. In all participants, scientists tried to induce the effect of "ear worms" in order to empirically evaluate their effect on the quality of sleep. At the same time, the activity of the brain, the work of the body and the quality of sleep were assessed using a polysomnograph.

It turned out that those who were used to listening to tunes and songs for the future to sleep in order to sleep better, constantly suffered from the phenomenon of "ear worms" and experienced problems with sleep. This refutes the common belief that music in the evening helps to fall asleep and sleep better. The brain, even during sleep, does not stop analyzing the data obtained while listening to music, which reduces the quality of rest.

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