Wormholes, a shortcut to space and time, have long been the main content of science fiction. But some scientists believe that we will soon be able to show that they are real parts of the universe, as real as the sun and stars or you and me. The scientific term for this strange object is the Einstein Rosen Bridge, which is a clue to the origin of this idea.
Wormholes have their roots in Albert Einstein’s general theory of relativity, his pioneering masterpiece, which subverts our view of gravity. For centuries, thanks to Isaac Newton, we thought we knew how gravity works. The apple fell to the ground and the earth remained in its orbit around the sun due to the gravitational force between the objects. However, Einstein had a different view: He believed that the gravity we experience is just the bending of space and time. Under this new system, the earth revolves around the sun because the mass of our star will distort the space around it, just as a bowling ball will distort the sheet if it is placed in the center of the sheet. Our planet only follows the local curvature of this structure, which Einstein called “space-time.
Such a crazy idea urgently needs experimental evidence to back it up. Fundamentally, the solar eclipse of 1919 provided such an opportunity. When the moon blocked the sun, the sky was dark enough to see nearby stars. However, we cannot see the true position of these stars because the sun’s gravity deflects their light towards us. Newton’s and Einstein’s competitive gravitational images predict varying degrees of bending, letting us know who is right. Einstein is among the best: huge objects actually bend the space-time around them.
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What is a wormhole? Time Tunnel Explanation
Imagine space as a huge sheet of paper. You live at one extreme and you want to travel to the other extreme. Usually you have to go through the entire page to get there. But what if you fold the paper in half? Suddenly, where you are and where you want to go are next to each other. You just need to skip that small gap. We call these objects a wormhole because it is like a worm trying to get around a block. To go from top to bottom, you have two options: crawl outside or take a shortcut in the middle.
Until recently, our chances of finding these celestial bodies, if they exist at all, are slim at best. But in February 2016, when the scientists behind the LIGO (Laser Interferometer Gravitational Wave Observatory) experiment announced the first detection of gravitational waves, the situation changed. These are the tiny ripples in the structure of space-time predicted by general relativity, and they spread through the universe like ripples in a pond. “It changed the rules of the game,” said Vitor Cardoso, a physicist at the University of Lisbon in Portugal.
Two black holes (each black hole is approximately 30 times the mass of the sun) collided with each other 1.3 billion years ago. Their violent collision triggered a roaring tsunami of gravitational waves, which finally reached the LIGO instrument in September 2015.
Cardoso’s research shows that two colliding wormholes will produce similar bursts of gravitational waves. However, what is exciting is that he said that the resulting waves will be slightly different, allowing us to distinguish between black holes and wormholes.
Computer simulation of black hole collision.
Computer simulation of black hole collision. (Image source: SXS, Simulated Limit Space-Time (SXS) Project (http://www.blackholes.org))
The key here is the so-called “decay”, the way gravitational waves die. After the initial collision. It is similar to the way the bells fade over time. “When two wormholes collide, you will see the falling ring, just like the black hole you see, but if your detector is very sensitive, a few or tens of seconds after the main explosion, you will see To different things,” he said. This is due to the nature of black holes: gravitational giants will swallow anything that gets too close. The sound of black hole collision always becomes quieter and disappears quickly. But with the collision of the wormhole, you will get an echo after silence. When the gravitational wave bounces off the surface of the wormhole, it is a sudden and late signal. You can’t do this with black holes, because they swallow everything.
Unfortunately, LIGO is currently not sensitive enough to detect these late changes. However, researchers are updating LIGO’s instruments, which may be achieved in “about ten years,” Cardoso said. Another interesting upcoming project is the Laser Interferometer Space Antenna (LISA) of the European Space Agency (ESA). This is a space gravitational wave observatory with a tentative launch date of 2034. However, ESA launched the LISA Pathfinder in 2015 as a test mission to develop certain key technologies that are critical to the success of LISA. In April 2016, ESA announced that LISA Pathfinder has proven that LISA is feasible.
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But hitting the phone may not be the only way to find a wormhole. Diego Rubiera Garcia, Cardoso’s former colleague at the University of Lisbon, has another idea. You have been studying what happens inside the black hole. As described by the general theory of relativity, the traditional image of a black hole compresses all the falling mass into an infinitely small and infinitely dense point: a singularity. “Any observer close to this point will be destroyed,” Rubiera Garcia said. “After that, you will disappear from time and space… with nowhere to go.” It was at this singularity that general relativity collapsed: its equations no longer make sense. This makes many physicists believe that in such an extreme environment, we need a new set of rules to replace general relativity. Chapter
This is where the wormhole comes in

By Peter

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