What insects helped determine how many years ago people began to wear clothes? Detailed answer

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What insects helped determine how many years ago people began to wear clothes? Detailed answer

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What insects helped determine how many years ago people began to wear clothes?

Archeology cannot determine when people began to wear clothes, as they are not preserved in burials. However, this can be done by another science - genetics. A study of the DNA of body lice, which lay their eggs on clothes, showed that they evolved from head lice about 170 years ago - it was at this time that people began to dress.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

How are new stars different from supernovae?

There are stars whose brightness increases very quickly: a star, flaring up for several days or even hours, suddenly flares up. The luminosity during a flash can increase tens of millions of times! Then the brightness of the star begins to fade, first rapidly and then slowly, and the star eventually becomes the same as it was before the outburst. Such stars are called novae. Amateur astronomers often discover such stars. It used to be thought that this was indeed a re-emerging star. But all these stars existed before, only they were found with difficulty because of their weak luminosity.

Many of the new stars flare up repeatedly. What makes stars explode? Very hot stars are often in an unstable state. Energy bursts out of their bowels, the outer gas layers break off and rush into space with great speed, only to dissipate later. After the explosion, in a year or two around the weakened star, a gaseous nebula becomes visible in telescopes, bright, expanding. The ejected shell, illuminated by the star, moves away from it, dissipates in space. A new star is not destroyed during a flash, but only throws off part of its stellar matter. There are over 200 new stars, and most of them are in the Milky Way.

Sometimes explosions of stars are of such enormous power that the luminosity increases enormously - hundreds of millions of times! And the star is destroyed. Such a star is called a supernova. Supernova explosions are an extremely rare but remarkably bright phenomenon. Such stars become so bright during the flash that they can be seen with the naked eye even during the day. Over the past millennium, five supernovae have exploded.

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