How can a killer asteroid survive


In 1609, Galileo trained his telescope on the moon, and by discovering a completely circular debris dominated by its topography, astronomers began to wonder how they were formed. In the early nineteenth century, some astronomers, such as the German Franz von Grithuisen, suggested astronomical effects as the cause. The most misleading, however, was the rejection of this theory on a general basis: the lunar grooves are almost perfect circles. And, anyone who has thrown a rock into the dirt can tell you, it shouldn’t be like an impact stain. Instead, the mark will be bound, oval and irregular. (Gruthuisen probably couldn’t help but claim that he saw cows grazing on the moon’s grass in these holes.) By confusing any further theorists, astronomers could create little hills at the center of each depression. Thus, for 300 years, most astronomers and physicists believed that (1) cows could not graze on the moon and (2) the moon leaned against the face of the volcano rather than meteors.

Then, in the early 1900s, astronomers like Nikolai Morozov of Russia* Newly developed high explosives began to observe rather a startling discovery: large explosions differ from rocks thrown in various ways, but the most sinister – at least for the continuous existence of our species – they leave circular grooves regardless of the angle of impact. As Marijov wrote after a series of experiments in 1909, the effects of asteroids “will throw dust from all sides, regardless of their translation speed, in the same way as artillery grenades fall on a loose earth.”

Prior to Morozov’s discovery, astronomers were aware that asteroids could be destructive. In 1903, Nathan Schiller, dean of the Lawrence Scientific School at Harvard and a proponent of volcanic theory, wrote, “The fall of a ten-mile-diameter bolide was enough to destroy the Earth’s biological life,” but most believed it was a complete theoretical exercise. Mentioned as a defense, the existence of humanity proved that such effects could not occur.

Morozov’s calculations have changed that. Once you know the actual source of the spots on the moon, you don’t have to be an astronomer or even own a telescope to come to the conclusion that asteroids carry affordable potential and that their effects are inevitable.

Schiller was somehow, basically wrong. An asteroid about the size he described Did Impact the earth and Did Eliminate the dominant species on the planet. Instead of simply wiping out humans, it has cleared the evolutionary path to consider the end of a mole-shaped placental mammal to crawl, walk, and travel to a public camp.

You may think Your cunning ancestral survival proves that a big-brained mammal like you will stand a reasonable chance. Unfortunately, most omniscient-friendly adaptations of this myth have been lost. This attack can survive on top of the insects, move away from the heat, and leave the fur to warm itself after decades of freezing. You can copy a few of the treatment survival strategies. You can increase and expand your diet. But evolution has snatched you away from others, and when the opponent’s thumbs enter the Earth’s atmosphere at 12.5 miles per second, it’s not enough to save you.

Under the effects of this motion, the Earth’s atmosphere behaves like water. Smaller rocks – called meteorites – hit the gravel-like environment in a pond; They decrease rapidly at higher altitudes, either igniting their friction with the wind or reducing their low-altitude terminal speeds to 164 miles per hour. However, the mountain-shaped Cixulub asteroid rocks our atmosphere like a rock. It maintains its speed until impact, sinking the entire 60 miles into the atmosphere in less than three seconds. The asteroid screens across Central America, spreading a sonic boom that reverses across continents.

It falls so fast that the wind cannot escape on its own. Under intense compression, the air heats up to several thousand degrees almost instantly. Before the asteroid arrives, the compressed and superheated air evaporates into many shallow seas that cover the Yucatan in the late Cretaceous. After milliseconds, the rock sank with what was left, sinking more than 10 miles per second. Instantly, several close processes occur simultaneously.

First, the impacting meteors apply so much pressure on the soil and rocks that they do not break or break, but instead flow like a liquid. This radical effect actually makes it easier to imagine the formation of hooves, as the earth’s inductions replicate a double splash of a cannonball in the pool of a backyard almost exactly. When the cavity created by the impeller is returned to the surface, the initial splash in all directions is followed by a delayed, vertical splash.



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