When it comes to speed, I believe many people will first think of high-speed rail, airplanes, rockets and other objects. After all, the speed of these objects is extremely fast, and the speed of the rocket is the fastest. After all, the rocket is the smallest. The speed of the rocket must reach 7.9 kilometers per second, because this is the first speed in the universe. If the rocket cannot reach this speed, then it cannot leave the earth. Therefore, in order to successfully send a rocket to space, scientists will set its speed above 7.9 kilometers per second, and the faster the better.
Since the speed of the rocket is so fast, is it the fastest of the artificial objects? But in fact, it's not!
In fact, human beings have created the fastest objects, not rockets or spaceships, but a small object that can be seen everywhere in our daily lives, and this is what we are familiar with and can no longer be familiar with Sewer manhole cover. I believe many people will wonder, isn't the sewer manhole cover placed on the ground? It can't even move, so how does it become the fastest moving object on the earth?
In fact, this matter has to start with an accident in 1957.
It is understood that in 1957, due to a calculation error by a scientific researcher, a manhole cover exceeded 260 times the speed of sound and became the fastest moving man-made object on the earth. As for its final destination No one knows where it went, because it is like the world has evaporated, no trace can be found, and some people even think it flew into space.
It is understood that this manhole cover was a scientific experiment at the Los Alamos Laboratory in the United States at that time, and its experimental process was to dig a depth of up to 150 meters , A deep pit with a diameter of 1.5 meters, and then place the nuclear explosive device at the bottom of the pit. In fact, the purpose of this experiment is still a mystery. No one knows why these scientists did such an experiment? It is said to be to collect relevant data on nuclear explosive devices for scientific research.
For safety reasons, after burying the nuclear explosion device, the scientists also installed a sewer manhole cover at the entrance of the cave. This manhole cover is made of steel plate. These scientists believe that this nuclear explosion experiment will only release a small part of the energy. For such a huge deep pit and such a heavy manhole cover, it is completely capable of withstanding the energy impact of a nuclear explosion.
However, during the experiment, a scientific researcher made a calculation error to help the nuclear explosive device immediately released more than their original calculation after detonation. 50,000 times the energy. Such a huge energy burst out from the deep pit and went straight to the manhole cover. As a result, the manhole cover soared into the sky and disappeared from people's sight in an instant. Although the scientists used high-speed camera to record, the speed of the manhole cover is so fast that even high-speed cameras are difficult to capture. Scientists estimate that the speed of the manhole cover at that time may have reached more than 70 kilometers per second, equivalent to 206 times the speed of sound.
So far, the fastest man-made object on the earth was born. As for where it ended up, some people think that it ran into space while moving at high speed; others think it was burned by friction with the atmosphere in the high altitude. What is your opinion on this?
