What Japanese managed to survive two atomic bombings in a row? Detailed answer

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What Japanese managed to survive two atomic bombings in a row? Detailed answer

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What Japanese managed to survive two atomic bombings in a row?

On August 6, 1945, the Japanese engineer Tsutomu Yamaguchi was among those who were in Hiroshima during the atomic bombing of the city. After spending the night in a bomb shelter, the next day he returned to his hometown, Nagasaki, and was exposed to a second atomic explosion. Until the beginning of 2010, Yamaguchi remained the last living person officially recognized as a victim of the two mentioned bombings.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who are sharks?

Sharks are fish, but unusual ones. There is no bone in their skeleton. It consists only of cartilage. Therefore, these fish are called cartilaginous. In addition to sharks, rays also belong to cartilaginous fish. The skin of sharks is very rough, because their scales are also unusual: each scale is a plate on which a tooth sits, ending in one or more points. They do not have gill covers, like the fish we are used to, but have gill slits. Almost all sharks live in the sea.

The largest shark is the whale shark. But it is not dangerous, because, like the largest whales, it feeds on plankton - small organisms floating in the water column. And one of the most dangerous is the great white shark, the largest of the predatory sharks. The hammerhead shark, which everyone knows because of the unusual shape of its head, is also very dangerous.

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With a lack of oxygen, cell aging begins even before birth. 13.03.2016

Scientists led by Professor Dino Giussani from the University of Cambridge found that the aging process of body cells begins even in the prenatal period of its development. At the same time, it is possible to influence the rate of future aging with the help of antioxidants.

In the study, the researchers measured telomere lengths in the blood vessel cells of adult laboratory rats born to mothers who took and did not take antioxidants during normal or complicated pregnancies. Telomeres are the end sections of chromosomes, the depletion of which is associated with the aging process of the cell. The most common complication during pregnancy is a decrease in the amount of oxygen supplied to the fetus. In the case of humans, the reason for this may be, for example, smoking during pregnancy. To mimic this complication in rats, the researchers placed a group of rats in a room containing 7% less oxygen than normal.

They found that adult rats born to mothers who received less oxygen during pregnancy had shorter telomeres. In addition, they had problems with the inner lining of blood vessels, which means that these individuals had a higher predisposition for the development of cardiovascular diseases. Antioxidant supplements taken by these pregnant women helped reduce the risk of developing heart disease. Those individuals whose mothers received enough oxygen during pregnancy also benefited from these supplements - their telomeres turned out to be longer.

Thus, scientists for the first time came to the conclusion that it is possible to influence the rate of aging of the body already during its intrauterine development, and the supply of oxygen plays the main role in this process, apparently. Although the results are from rats, the researchers believe that similar mechanisms are at work in humans.

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