What number plays the same role for the Chinese and Japanese as the number 13 for Europeans and Americans? Detailed answer

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What number plays the same role for the Chinese and Japanese as the number 13 for Europeans and Americans? Detailed answer

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What number plays the same role for the Chinese and Japanese as the number 13 for Europeans and Americans?

In these countries, the number 4 plays a similar role: it is widely believed among the Chinese and Japanese that the fourth day of each month is a bad day.

Indeed, after analyzing the death certificates for the years 1973-1998 of more than 200 Japanese and Chinese living in California, American researchers found that on the 4th of each month, the death rate increased. In particular, mortality from heart disease rose by 13 percent.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Do hyenas laugh?

There is a species of spotted hyena called the laughing hyena. She is the largest representative of this family. When the spotted hyena hunts for prey or is annoyed by something, it emits a growl that inspires superstitious fear, reminiscent of a giggle or laughter. But, of course, the word "laughter" does not have the meaning that human laughter has. It's just a high-pitched scream that reminds us of laughter.

The laughing hyena is a ferocious animal that reaches about 1 meter in height and 1,85 meters in length. Large hyenas can weigh up to 80 kilograms. During the day, the hyena sleeps in a burrow or cave. At nightfall, she crawls out in search of food. Hyenas often hunt alone. But sometimes they gather in flocks around a prey left by a lion or other predator. Their instinct leads them to the corpses of animals and they eat them without a trace.

The hyena is a cowardly and vile animal, preferring to eat what others have obtained and abandoned. But they roam around campgrounds and villages and sometimes attack people sleeping in the open. They constantly accompany herds of cattle and antelopes. Hyenas can attack sick, very young or, conversely, very old animals.

Spotted, or laughing, hyena of African origin, it lives from Ethiopia to the Cape of Good Hope. The peculiarity of the spotted hyena is that, unlike other animals, the female is larger than the male.

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mosquito tracking radar 31.03.2018

Chinese defense technology scientists are developing a device to track mosquitoes within two kilometers, which will "save millions of lives" from being bitten by the planet's "deadliest insects".

The new device will pick up the sound of mosquito wings flapping at a distance of about two kilometers.

Modern military radars are capable of picking up the echoes of small objects over long distances. For example, the American anti-missile system "X-band radar" can recognize an object the size of a baseball at a distance of 4 thousand kilometers.

China has similar devices in the defense sector, but some scientists believe that these military technologies can also be used in the fight against mosquitoes. So, at the end of last year, the central government of China allocated about 12,9 million dollars to create a full-fledged radar to track dangerous insects.

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