Which animals were the first to orbit the moon? Detailed answer

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Which animals were the first to orbit the moon? Detailed answer

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Which animals were the first to orbit the moon?

The first animals to return to Earth alive after space flight were, as you know, dogs. But the championship in the flyby of the moon belongs to the turtles. It happened in 1968: Central Asian steppe tortoises were put into the Soviet spacecraft Zond-5. The choice was justified by the fact that they do not need a large supply of oxygen, they can eat nothing for a week and a half and remain in a lethargic sleep for a long time.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

How is a diamond processed?

How is diamond processed if it is considered the hardest substance? This becomes possible for two reasons: the first is the structure of the diamond and the second is the way it is processed. Diamond is highly crystallized carbon. The carbon atoms that make up carbon have a geometric organization. This means that it becomes possible to break off pieces of diamond parallel to the plane that the atoms form. Then the surface becomes flat and smooth.

Pieces of the same diamond, chipped off during processing, become a tool for processing a diamond. A small depression is carved on one side of the crystal. Then a thin cutter is inserted into this recess. A precise blow is struck on it, and the diamond crystal is cut off. This is done with large diamonds to remove cracks or to create a shape that makes the diamond more lustrous. They do the same when they want to make the most of the weight of a natural stone.

When cutting a diamond, you only need to go in one direction. Diamonds are sawn with a thin disk of iron coated with a mixture of diamond dust and lubricant. In other words, you need diamonds to process diamonds. The diamond machine is very fast, but it processes the stone very slowly. Diamond cutting is a very delicate skill that takes years to learn.

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