What material trace can lightning leave in the ground? Detailed answer

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What material trace can lightning leave in the ground? Detailed answer

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What material trace can lightning leave in the ground?

If powerful lightning strikes the surface of the earth, it can leave its mark - a hollow glass tube called fulgurite. Such a tube consists of silica (or sand) melted down by the action of an electric current of lightning. Fulgurites can go deep into the earth for several meters, although due to their fragility it is very difficult to dig them out completely.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What was the highest scoring football match in history?

In 2002, the Madagascar football club Stade Olympique L'Emirn fought for the title of national champion, but in the penultimate match it drew due to a controversial penalty in the last minutes of the meeting and lost its chances for the championship. As a sign of protest in the last match against AS Adema, the Stade Olimpika players began to score goals into their own nets from the very beginning of the match. The final score of the meeting 149:0 in favor of AS Adema has been a world record ever since.

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Random news from the Archive

Swifts spend most of their lives in flight. 07.11.2018

Scientists were able to establish that white-bellied swifts actually spend their entire lives in the sky.

To obtain such conclusions, experts representing the Swiss Ornithological Institute and the Bern University of Applied Sciences conducted research. They attached one and a half grams of sensors to six individuals of the indicated species of birds. A year later, scientists were able to catch only three of the mentioned swifts. However, the information received from their sensors was enough to draw specific conclusions. So, the results showed that these birds flew from Switzerland to West Africa and returned back the same way.

Experts found that during the migration, swifts were in the air all the time. Drifting allowed them to rest. They realize all their physiological needs in the air. For example, swifts feed on plankton, which is available in the sky. Experts noted that at some points the speed of the movement of birds decreased. Probably, these short periods served as a rest for swifts. However, it is not known whether they sleep during this period or simply reduce the rhythm of movement for relaxation.

According to scientists, during the year the swifts were at rest only during their stay in Switzerland. There they acquired offspring, and all their energy was spent on feeding the chicks. The rest of the year, swifts are in a state of flight.

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