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Meteorites, human beings' terrible alien visitors

author:hm Hongming

Meteorites are extraterrestrial, for many people have only heard of meteorites, and very few people have actually seen meteorites, but in Canada, a woman almost hit her head by a meteorite, which is very lucky.

Meteorites, human beings' terrible alien visitors

Last Tuesday night, Ruth Hamilton, a woman from British Columbia, Canada, was awakened by a stone that broke through the roof while she was asleep in bed, ruth jumped out of bed, turned on the light, and was surprised to see a falling stone on the pillow, just a few centimeters from her head, and she immediately called the police. After the police investigation ruled out the possibility of stones flying from the construction site, according to the surrounding residents, there was a bright light flashing in the night, followed by a loud noise, like fireworks. Eventually, police confirmed that it was a meteorite flying from the sky. According to the New York Times, the meteorite weighed 1.3 kilograms in size as a fist, and now Ruth said she would keep the lucky meteorite that almost hit her.

Meteorites, human beings' terrible alien visitors

A meteorite that hit Ruth's bed

So, how often do meteorites hit humans? It is understood that about 4 billion meteoroids and meteorites are captured by the gravitational pull of the earth and fall into the earth, but the vast majority of meteoroids are completely burned when they enter the atmosphere, according to the scientists' speculation and analysis, there are still about 500 meteorites every year, as small as marbles as basketball meteorites fall to the earth, but usually only 5 to 10 meteorites will be found and found by scientists every year.

Meteorites fell and hit people, the earliest record is in the Ottoman Empire in 1888, a meteorite directly hit people, causing instant death. The most famous meteorite injury in modern history occurred in 1954, in the United States, a meteorite weighing 3.8 kilograms landed at Sirako's home, hit the radio, and the bouncing meteorite hit Sirako's back, causing a third of her back to be bruised, and she recovered after several months of treatment. In 1992, a "meteorite rain" was cast over the city of Mbale in Uganda, Africa, with a total weight of 108 kilograms, and if the meteorites had not been broken down into many small pieces in the atmosphere, the city of Mbale would have suffered heavy losses. This "meteorite rain" caused only a slight abrasion of a young man: meteorite flakes hit the banana tree and bounced on him. In New York that same year, the trunk of a Chevrolet Maribao was hit by a meteorite, but the owner was not injured, and he sold the car that had been hit by the meteorite to a collector for 25 times more than the new car. The 2013 meteorite fall in Russia's Chelyabinsk Oblast was the largest human loss in recent decades. At 12:30 p.m. on February 15, 2013, a meteorite weighing 10 – 30 tons rubbed and burned as it crossed the atmosphere, exploding, producing a large number of tiny fragments, forming a "meteorite rain", in which the windows of nearly 300 houses were smashed or shattered, more than 1,200 people were directly or indirectly injured, and the meteorite fall caused direct economic losses in Russia of 1 billion rubles (about 30 million US dollars).

Meteorites, human beings' terrible alien visitors

The famous Russian Chelyabinsk meteorite in the museum

Meteorites that fall to earth are generally divided into three categories: stony meteorites, iron meteorites, and stony iron meteorites. 95% of the meteorites that fell to the ground are stony meteorites, the main component is silicate minerals; 3% are iron meteorites, mainly iron-nickel metals, and the facets of iron meteorites are very bright; and 1.2% of the total number of falling meteorites are stony iron meteorites, which are very rare and are the most commercially valuable meteorites.

Meteorites, human beings' terrible alien visitors

According to statistics, human space telescopes have found a diameter greater than 140 meters, the number of asteroids that threaten the earth is nearly 10,000, they are small in size, the brightness is very low, the difficulty of observation and tracking is large, and various countries are trying to cope with the impact of asteroids on the earth, such as blowing up asteroids with nuclear bombs, changing the orbit of asteroids through boosting and impact, etc., but at the current level of human aerospace technology, it is basically impossible to fully cope with meteorites, which are full of unknown alien visitors.

Wu Hongming compiled from Russian UCRAZY

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