Why can the spacecraft in science fiction movies hover and move instantaneously? Today we will talk about anti-gravity .
If human beings master anti-gravity technology, what will the world be like?
The force that an object receives due to the attraction of the earth is called gravity. The degree of gravity of an object depends on its mass. The greater the mass, the greater the gravity, and the greater the gravity, the stronger the gravitational force. Simply put, gravity is the gravitational force between any two objects in the universe. Everything in the material world has gravity, whether it's celestial bodies or particles. Gravity is also the four basic forces of the universe, the others are electromagnetic force, weak interaction and strong interaction.
The term anti-gravity first appeared in a British science fiction novel. As the name suggests, it is to use certain technological means to make the gravitational field disappear in a certain area, or to make a mass object no longer suffer. The influence of the gravitational field, the most typical representatives of anti-gravity are those floating houses, cars and spaceships in science fiction films.
And Newton’s third law states that the suspension of any object must be subjected to the reaction force of by applying a force to another object. In this way, if there is an anti-gravity operation, Newton’s Is the coffin board unable to hold down?
In the 1920s, an American inventor named Townsend Brown claimed to have invented an electronic device that can control gravity. These technologies were later classified as changes in airflow caused by electrostatic force to float object. In the 1990s, a Russian researcher Eugene Podkrenov also claimed that rotating superconductors can reduce the gravitational effect, but his experiment has never been successfully replicated.
Many people think that the U.S. Air Force, U.S. Navy, and NASA have secretly mastered anti-gravity technology,And some UFO sightings are attributed to the so-called anti-gravity device, but these are only rumors, and there is no actual evidence.
So, is anti-gravity really possible?
Einstein 's general theory of relativity believes that gravity is a kind of space-time distortion, which is manifested in the contraction of space-time. On the other hand, if space-time is expansion, will the universe be an anti-gravity space-time? The American astronomer Hubble observed that all the nebulae are moving away from each other, and the farther away they are, the faster they leave, which proves that the universe itself is expanding at an accelerating rate. This shows that the entire universe is anti-gravity. . This contradicts our cognition. Does this prove that anti-gravity does exist?
If the anti-gravity is really controlled, what can we do?
The most intuitive thing is that our houses and cars can be floated, and even floating cities can be built. Controlling anti-gravity may also mean controlling the potential energy of gravity and obtaining unlimited energy. Anti-gravity may also have another advantage, that is, you can control what you want without touching it, just like what we usually call fetching objects from the air.
The real anti-gravity is ignoring gravity and mass. It is different from things like magnetic levitation. Although the maglev train has no friction, it also requires a lot of force to pull the train up and let It generates speed, and it also requires a strong force to stop the train when stopping.
In other words, anti-gravity makes the inertia disappear. Without inertia, in theory, there is no traffic accident. Using anti-gravity, we can also avoid some devastating disasters, such as asteroids hitting the earth.
But in the final analysis, no one can explain the principle of "anti-gravity".
The EM engine born in Minke
The EM engine is closer to the anti-gravity technology. Its real name is Electromagnetic Drive ,Literally translated into Chinese, it should be called "electromagnetic drive", sometimes called "electromagnetic injection engine" or "fuel-free EM engine". Or "no working substance microwave thruster".
Compared with the traditional flame-jet engine, the EM engine relies on electromagnetic waves to generate propulsion. Its working principle is to make the photon microwave bounce inside the closed cone, thereby at the thinner end of the cone. Generate thrust to propel the spacecraft forward.
But from Newton’s third law of kinematics, this is impossible to achieve, because any movement will produce equal reaction force, and the EM engine is not designed to inject any waste, so in EM After the engine was proposed, many people regarded it as a funny folk science.
But a NASA research team focused on thrusters conducted an 8-day experiment. The experimental data showed that under the stimulation of 28 watts of electricity, a thrust of 30-50 micronewtons was generated, although the thrust was very It was small, but it did exist. This result was shocking and far beyond people's expectations.
Up to now, no one has been able to give a correct explanation of the principle behind it. NASA also made it clear in the 2014 paper that it does not elaborate on the principle of this machine and only provides experimental data.
There are also many people who associate the EM engine with the "warp engine" in science fiction works such as "Star Trek". The more mainstream reliable guess is that the EM engine is actually propelled by virtual particles from the quantum vacuum. Virtual particles exist for a short period of time, are constantly produced and then quickly disappear, so the vacuum is not really a vacuum.
If the EM engine becomes a reality, it will have an unprecedented impact on the entire aerospace industry, because at this stage spacecraft need to carry a large amount of heavy fuel to fly into outer space. Fuel If it is gone, the spacecraft can no longer operate.
And the EM engine does not need any fuel, it only needs solar energy, it can slowly accumulate speed in outer space, and finally reach the limit speed and fly to the outer planet.
According to estimates,If the EM engine is used as the core thruster of the spacecraft, it will only take 4 hours for to fly to the moon, 10 weeks for Mars, and 100 years for Centauri. Don’t be too long, you know, According to our current technology, it will take tens of thousands of years to fly to the Centaur.
Do you think the EM engine is reliable? In other words, can we really conquer anti-gravity technology one day?
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