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From hovering cars to cities in the sky, anti-gravity has always been a staple in science fiction film and television dramas, will anti-gravity really exist? Nothing could be more certain than gravity.
Gravity, like the electromagnetic force, is one of the four basic natural forces of the universe.
Gravity allows us to stand on the ground with our feet on the ground, allowing the Earth and we to revolve around the Sun, allowing the Solar System to be in our Milky Way.
Although gravity is often thought of as a force, the reality is much more complicated. As Albert Einstein explained in his book General Relativity, gravity is actually the result of mass bending space-time.
When the mass of the object is greater, its gravitational pull will be greater. "Anti-gravity" is a hypothetical way to counteract the effects of gravity, and for now, most scientists believe that anti-gravity does not exist and is impossible.
Most scientists believe that gravity acts in the same direction as on ordinary matter, but there is no experimental evidence to deny the possibility of "antigravity" that is opposite to gravity.
In layman's terms, antimatter is almost identical to ordinary matter, but antimatter is different from ordinary matter in that antimatter has opposite basic properties such as charge, spin and quantum number.
They can annihilate each other, producing extremely high-energy photons, so they are considered to be an extremely rare and precious substance in the universe.
In fact, even a tiny clump of antimatter has amazing destructive power, known as the "strongest bomb", which can easily destroy a city, and it is also ridiculously expensive, just one gram of antimatter is worth as much as 62$5 trillion,** far more than nuclear and oil.
Antimatter refers to the substance with the same mass but opposite charge as ordinary matter, which can be divided into antielectron and antiproton, among them, antielectron is the antiparticle of the negative charge quantum, usually called the representative of antimatter - antimatter electron, it has the same mass as normal electron, but with the opposite charge, antiproton is the antiparticle of proton, with the same mass as ordinary proton and the opposite charge of the charge, is a negative charge, and the antiproton is usually called the antiproton proton.
The properties of antimatter have some unique characteristics because antielectrons and electrons have the same properties but the charges are opposite, so they cancel each other out.
Therefore, when an anti-electron encounters an ordinary electron, the two will annihilate each other and release energy, a process called anti-electron annihilation. This phenomenon can often be used to detect energy conversion and antimatter.
The controlled nuclear fusion that mankind dreams of is only 0. after the reaction7 of matter is converted into energy, and because of the annihilation reaction that occurs between the meeting of antimatter, such a reaction converts 100% of the matter into energy, so antimatter is called one of the ultimate energy sources in the universe by scientists.
Many of the science fiction works about the spaceship are used for propulsion, so that the spacecraft can reach extremely fast moving speed, if antimatter is applied to **, the power will definitely be much more terrifying than nuclear**.
So does antimatter have an anti-gravity phenomenon? Anti-gravity is just a physical guess, and anti-gravity speculation is a concept derived from Newton's theory of gravitation.
Theoretically, if matter has anti-gravity or anti-gravitational properties, then it can be unaffected by gravity and can be suspended in the air without the support of any energy and any external force.
However, in fact, the scientific community has long believed that antimatter does not have antigravity, but it has not been reliably verified by experiments.
However, according to the latest news released by CERN, scientists have observed for the first time the phenomenon of antiparticles falling downward under the action of the earth's gravity, and the experimental results have clearly ruled out the possibility of gravity repelling antimatter upward.
This report was published in the British journal "Nature", CERN observed the gravitational effect of antihydrogen atoms in the laboratory for the first time, proving that both positive matter and antimatter also have gravitational effects, in line with Einstein's general theory of relativity.
Albert Einstein once predicted the existence of antimatter in his theory of relativity: "For a matter with a mass m and an electric charge of e, there must be a substance of mass m and an electric charge of e." ”
Scientists previously guessed that at the beginning of the universe, positive and antimatter were equal, but for some reason, antimatter seemed to disappear, and there was also a conjecture that antimatter had antigravity, which made interstellar travel and even time reversal possible, and became a common setting in many science fiction and science fiction movies.
Thanks to the experimental publication of the journal Nature, all this conjecture became hypothetical.
The "Alpha" experimental international research team on the "anti-hydrogen" substance used the "Alpha-G" experimental device to measure the direction and intensity of gravity acting on anti-hydrogen, and found that the direction and intensity of gravity used for anti-hydrogen were consistent with ordinary matter, thus ruling out the possibility of anti-gravity in anti-matter, a result that can be expressed in the framework of modern physics as "anti-gravity does not exist." ”
To sum up, all the conclusions show that antimatter does not produce anti-gravity, and anti-gravity does not exist, and various effects such as spaceships and time lapse in many sci-fi and sci-fi movies do not exist in reality and do not occur.