Curvature acceleration
In today's increasingly technologically advanced level, our travel methods are becoming more and more diversified, and the fastest mode of transportation by land transportation, high-speed rail, even from Beijing to Shanghai, takes less than five hours. Not to mention the plane, which can span the north and south of China in less than three hours. But in any case, this ordinary traffic speed must have physical constraints. Why?
Leaving aside the world of difference between low speed and high speed environment, we can analyze what is the most extreme speed in nature, of course, the speed of light, in the real world, only the speed of one thing can approach it, that is, microscopic particles, such as atoms, electrons, etc., and through the hadron accelerator, it may be possible to reach its 99.99....%, but in any case, it is impossible to reach 100%, because through physical calculations, this will consume all the energy of the universe.
Spatial curvature
Ignoring the energy constraint, suppose we have a vehicle with unlimited energy, how much acceleration should we take to enable us to reach the speed of light in our lifetime? What material can withstand such a large acceleration? How can our flesh not be crushed into a meatloaf under such great inertia? These are all questions worth considering. After analyzing this, it is almost impossible to develop a vehicle that travels at the speed of light.
But don't be discouraged, the great Albert Einstein mentioned in his theory of relativity that space and time can expand and contract, although the theory of relativity can not be confirmed by experiments, but what cannot be confirmed is not necessarily false. In 1994, a god-man, Michael Akuberi, proposed to build an Akuberi engine that uses curvature drive, but how do we understand such a driving method? How does it solve the problems mentioned above?
Collapse space
First of all, as the name suggests, the curvature drive is of course related to the curvature of an object, and the curvature of the pot used for cooking at home is certainly not the same as the bed that lies down and sleeps every day, based on this idea, we imagine the space as a net, and the mass object can bend it. Such curvature space produces gravitational differences, so it can be said that the curvature drive relies on gravity to accelerate.
So if we continuously change the curvature of a certain space, so that its curvature is always in flux, then there is no endless power? And this kind of thing is called a space bubble, if we can put the spacecraft as a whole in it, because its internal space has not been changed, the gravitational mass is normal, so that we will not be destroyed by huge inertia.
Make wormholes
The above is the general idea of curvature drive, don't look at the curvature drive does seem to solve the first problem of human life, in fact, it is similar to the first ideal state we mentioned at the beginning, the former accelerates to the speed of light requires infinite energy, and the latter needs to maintain the energy required to maintain the space bubble is also infinite.
Because the maintenance of space bubbles requires negative energy, the "negative energy" here is naturally not a psychological concept, but a physical concept, which exists in the space between two parallel vacuum metal plates. And if we want to get enough negative energy, yes, we have to burn the whole universe again, and the problem is almost back to the original point. Therefore, the negative energy cannot be used, or it is necessary to find another way to find another substance to maintain the space bubble.
Article summary
After talking about the principle of curvature acceleration, I believe that everyone has a certain understanding of it, we may wish to change our thinking, not necessarily have to have a head iron through movement to achieve teleportation, in Einstein's theory of relativity, space is equivalent to a large net, it can be bent, and when its curvature is large to a certain extent, large enough to be different two sides are almost pasted together.
So why do we go along the plane? Therefore, Einstein predicted that there should be such a channel, which connects two two spaces, as long as you pass through it, you can reach the destination, and the name of such a channel is called wormhole.
The above two ways of acceleration and acceleration, one is pure by changing the speed of motion to achieve displacement, and the other is to find another way, directly to the challenge of space, I don't know which way of moving do you think is better? Feel free to leave a message in the comments section.