Is sunlight good for your skin? Detailed answer

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Is sunlight good for your skin? Detailed answer

Big encyclopedia for children and adults

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Is sunlight good for your skin?

Yes, as long as it's not overly intense and doesn't last too long. Solar radiation strengthens the immune system, improves blood circulation. Here it is important to observe the measure, especially in the spring, after a long winter, when the skin was completely deprived of it. Solar radiation contributes to the formation of melanin - the dark pigment of tanned skin. It is only necessary to protect the skin from sunburn, and the eyes from excessively bright sunlight.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Why are ambulances called carriages?

Ambulance services emerged in major cities in the late 19th century. To transport bedridden patients, special carriages were designed. They began to be called "ambulances", and this phrase remained in the language even after the replacement of crews by cars.

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Random news from the Archive

Elephants on a treadmill 14.07.2003

Can elephants run, or do they simply walk at a fast pace if necessary? A group of Thai biologists studied the issue by running 42 Asian elephants on a treadmill.

A total of 188 races were held under the lens of television cameras. To make it possible to analyze the movements of the legs of thick-skinned giants on video frames, the joints were marked on the elephant skin with spots of white paint. The speed was recorded with a photo finish.

It turned out that elephants use something between fast walking and running. The order and mode of movement of the legs does not change, and there are no moments when all four legs leave the ground, as in typical running of other animals. On the other hand, when the elephant moves to a fast pace, the body's center of gravity begins to jump up and down, which is typical for running (when walking, the elephant's center of gravity shifts back and forth).

Many of the experimental animals reached speeds of 25 kilometers per hour, and three particularly nimble individuals exceeded it. This is the first time that such speeds have been recorded in elephants. The conclusion of zoologists: with some stretch, we can assume that elephants can run.

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