We could build a wormhole if the universe has extra dimensions.

The wormholes can revolutionize information technology, space travel, and energy production. If they are possible to create.  Even if we cannot travel through wormholes we can send qubits through them. Or we can at least bring energy from higher dimensions to us. And that thing could solve the energy problems of the human race. 

When we are saying that the extra dimensions are tiny we might call them like that because they are in our third dimension. Those hypothetical dimensions are looking small if we stand outside them. But if we are jumping into those dimensions they are changing. And turning the space into what is almost like our third dimension. 

The size of the dimension depends on the position of the observer. If the observer is an inside dimension. That thing means that this character observes things. Like we are observing our universe. But the problem with the extra dimensions is that they are invisible to us. There is the possibility that inside the black hole is the fourth dimension. The fourth dimension is the energy layer. 

That is above the third dimension where we are living. So we can think the dimension is like the floor in the house. The higher dimensions are at the higher energy level. And that makes particles difficult to travel to the fourth dimension. 

The energy falls to the lower dimensions. And that makes the particle that travels to the higher dimension should travel against the energy flow from the higher dimensions. 

So the dimension is the certain energy level or certain series of energy levels where the observer sees an object. If the energy level between observer and object is between certain layers that make the object visible to an observer. 

The universe and things like extra dimensions are interesting things. When we are thinking about the dimensions. We should say that we are living in the third dimension. The third dimension is the energy limit where we can see the object. 

And the fourth dimension is the energy level that is too high that we can see the material. The thing that makes the material invisible is that it will be pushed to a smaller size when its energy level rises. And that thing makes the extra dimensions invisible to us. 

When we are thinking of higher dimensions like the fourth dimension we must remember that the energy flows to the lower energy level. So the higher dimension would be at the higher energy level. When the material comes out from the fourth dimension to the third dimension it must just lose its energy. But the main problem is how to get to the fourth dimension? 

When we are thinking that we can send particles to the fourth dimension we must just increase their energy level. If the energy level is high enough the particle jumps out from the third dimension. If we are thinking that the particle is acting as a water droplet we should turn the film around. 

When the energy level of the particle will increase, that thing rises the particle out from our third dimension. So the dimension is the area between energy limits where we can see particles and other objects. And if the energy level of the object is too high or too low we cannot see that thing. 

The thing that makes a wormhole interesting is that it can transport energy to our dimension. So if there is the possibility to make a wormhole where just one particle travels to a higher dimension that thing solves energy problems for the entire human race. But the problem is how to get to the fourth dimension? The fact is that there is the possibility to make the black hole that is the channel between dimensions. But that kind of thing is dangerous. 

Another idea is to make the particle with an extremely high energy field that makes it almost jump to the fourth dimension. And then. Just at the moment when the particle is jumping out from the universe or turns into a back hole particles with a low-energy level will be put under it. 

This extremely low-energetic particle will put to resonate with the particle at the higher energy level. This thing makes energy cannel between those particles and then it causes the fourth dimension falls to the lower dimension causing an energy flow. 

That thing will increase the energy flow. And that thing causes the energy channel between dimensions can open. If that kind of energy channel is possible it offers us an endless energy source, even if we cannot ever travel through that channel. 

https://www.space.com/build-wormhole-using-extra-tiny-dimensions

Brane theory

Extra dimensions

Wormhole

https://miraclesofthequantumworld.blogspot.com/

Why cannot we see other universes?

There are many arguments against the multiverse theory. And one of them is that we cannot see other universes. 

If we think that the universe where we live is unique we might be the luckiest civilization in the history of time. We would be the only intelligent species in the entire universe. That is the only universe in the dimension. 

When we are looking at the history of those "certainly they have not existed". We might remember that in history Earth was the only known planet. Until Galileo Galilei, Johannes Kepler, and Nicolaus Copernicus proved that Earth was only one planet in the group of planets. 

Then we must remember that Edwin Hubble proved that the Milky Way was only one of the galaxies in a large group of similar galaxies in 1924. He proved. That Andromeda Nebula along with some other disk-shaped nebula. Were too far from us that they could not be inside the Milky Way. So Hubble proved that the Milky Way is not the only galaxy in the universe. 

There is the possibility that light pollution is covering the other universes under them. 

There is the theory that in space are billions of universes. This is called multiverse theory. The theory is that the universe is the bubble that formed after the Big Bang. The Big Bang theory is not closing other universes away, and there is the possibility that in space or our third dimension happens new Big Bangs all the time. But the question is why we cannot see those hypothetical other universes. Sometimes people think that maybe we are living in a black hole. But there is another answer to that question. 

The answer might be found in the image about the highway at the night. When we are looking at that image. We see how so-called light pollution or the light that comes from bright street lights. Cover all other light sources under the bright light. That thing makes the illusion that there is only darkness around that road. So the stars and other radiation sources in the universe are covering the radiation sources in other hypothetical universes under them.

Radio signals that come from the other universes are covered by the radio "noise" that comes from the radio objects in our universe. The pulsars that are in our universe cover those radio signals under their noise. And if a plasma bubble surrounds our universe. There is a possibility that those distant radio sources are too weak that their radio impulses can penetrate our universe. 

In the multiverse theory, the universes are not copies of each other. The energy that forms those universes is a little bit different. And that means the particles of the other universes are a little bit different. That means the particles are sending the radiation with a little bit different frequencies. And that thing causes the effect that the other universes would be very hard to detect. 

There is also a time in hypothetical higher-dimensional universes. 

The dimension is sometimes described as the "floor" between two energy levels. If the energy level of the particle is at a certain slot we can see that particle. But if the energy level is too high or too low we cannot see the particle because it sends radiation the energy level is too high or too low that we cannot see that radiation. 

The difference between the multiverse and parallel universe theory is that the parallel universe theory introduces that the other universes are in different dimensions. That means that the energy level of the particles that are in the fourth dimension is higher. Then the particles that are in our universe. When the energy level of the particle is too high it would jump out from our third dimension. 

The oscillation of the extremely high-energy particles is so different than the oscillation in three-dimensional material that they cannot interact. But even in a hypothetical parallel universe time is like in our universe. That parallel universe expands and those particles will lose their energy. So sooner or later those particles will drop to the third dimension. 

The thing is that particles are also aging in the higher dimensions. The thing that makes those particles young is the energy load that increases the energy loss that causes because by the expansion of the universe. The thing that makes the time will stop in the particle that moves with the speed of light is that the particle cannot remove its wave movement. Because wave movement is traveling at the same speed as the particle that thing causes the particle remains young all the time. 

https://en.wikipedia.org/wiki/Edwin_Hubble

https://en.wikipedia.org/wiki/Four-dimensional_space

https://en.wikipedia.org/wiki/Multiverse

https://en.wikipedia.org/wiki/Spacetime