Sci-fi novels and movies are full of many more ideas as a starting point for action-packed adventures, rather than a serious attempt to predict future trends in science and technology. Some of the most common metaphors, like accelerating a spaceship to high speed in seconds without crushing its crew, are, in our opinion, totally impossible under the laws of physics. Yet those same laws seem to allow other seemingly distant sci-fi concepts, from wormholes to parallel universes. This is a summary of a few sci-fi ideas that you can actually implement, at least in theory.
The idea of a wormhole, a shortcut through space that allows you to move almost instantly between distant parts of the universe, sounds like it was created as a fictional story pilot. But under the more formal name of the Einstein-Rosen Bridge, this concept existed as a serious theoretical concept long before science fiction writers got it. Albert Einstein‘NS General theory of relativity, What a view gravity Like a space-time distortion caused by a huge object. Einstein, in collaboration with the physicist Nathan Rosen, theorized in 1935 the following points of very strong gravity: Black hole, Can directly connect to each other. And the idea of a wormhole was born.
The idea of actually walking through a wormhole was taken seriously until the 1980s, when astrophysicist Carl Sagan set out to write a science fiction novel, because the forces around the black hole would destroy anyone s ‘approaching the black hole. Not considered. BBCSagan advised fellow physicist Kip Thorne to find a viable way to shift interstellar distances in an instant. Thorn formally devised a means by which humans can travel interstellar through intact wormholes – theoretically possible, but highly unlikely in practice. The result has found its place in Sagan’s novel.contact“(Simon & Schuster: 1985) Later, Jodie Foster appeared in the first film.
Wormholes are unlikely to be the simple and convenient form of transportation depicted in the film, but scientists have now come up with more. A viable way to build a wormhole From Thorn’s first proposition. If the wormhole already exists in space, it may be possible to identify it using a new generation of gravitational wave detectors.
An essential prerequisite for most space adventure tales is the ability to get from point A to point B much faster than today. Aside from wormholes, there are many obstacles to achieving this with traditional spacecraft. It requires a huge amount of fuel, has the destructive effect of acceleration, and in space Strictly enforced speed limit.. This is the speed at which light travels. Exactly one. Light year Every year it’s not at all fast in the context of the universe. Proxima Centauri, the second closest star to Earth, is 4.2 light years from the Sun, and the galactic center is 27,000 light years away.
Fortunately, there are loopholes in the speed limit of the universe. It only determines the maximum speed at which we can move. Across the universe.. As Einstein explained, space itself can be warped, so it’s probably possible to manipulate the space around the ship in a way that flips the speed limit. Spacecraft always move through surrounding space at a speed slower than the speed of light, but space itself is moving faster.
This is what the author of Star Trek had in mind when he proposed the concept of “warp drive” in the 1960s. But to them, it was only a plausible phrase, not real physics. . It was in 1994 that theorist Miguel Al-Kubier found a solution to Einstein’s equations that produced the true distortion effect, a sister site of living science. Space.com reported, Reduce the space in front of the spaceship and extend it to the rear. In the first place, Alcubierre’s solution was as designed as Thorne’s passable wormhole, but scientists are trying to improve it in the hopes that it will someday be practical.
The concept of the time machine is one of the best sci-fi plot devices that allow characters to go back and change the course of the story – for better or for worse. However, this inevitably raises a logical paradox. For example, in “Back to the Future”, would Doc build a time machine if the same machine was not visited by the future Marty? Due to this paradox, many believe that time travel must be impossible in the real world, but according to the laws of physics, Can really happen..
Like wormholes and spatial distortions, the physics that tell us it’s possible to go back in time comes from Einstein’s general theory of relativity. It treats space and time as part of the same “space-time” continuum, and the two are closely related. Just like we talk about warping space with wormholes and warp drives, time can be warped. Scientists sayClosed time curve“Although it could be called a time machine to be exact.
The conceptual design for such a time machine was published in 1974 by physicist Frank Tipler, according to physicist David Lewis Anderson. Anderson Institute, Private research institute. This cylinder, called the Tiplar Cylinder, must be large (at least 60 miles (97 km) long, according to Humble), very dense, and has a total mass comparable to the mass of the Sun. To function as a time machine, the cylinder must spin fast enough to warp space-time so that time rolls up. It might not seem as simple as installing a flux capacitor in DeLorean, but it has the advantage of actually working, at least on paper.
A typical example of science fiction teleportation is “Star Trek”.“” Carriers, as the name suggests, are simply described as a convenient way to transport personnel from one location to another. However, teleportation is quite different from other means of transport. Instead of the traveler moving through space from the starting point to the destination, teleportation creates an exact replica at the destination while the original location is destroyed. Teleportation is certainly possible in these terms, and at the level of subatomic particles rather than humans. IBM..
The real world process is called quantum teleportation. This process copies the exact quantum state of a particle, such as a photon, to another particle hundreds of miles away. Quantum teleportation destroys the quantum state of the first photon, so it appears that the photon was magically transported from one place to another. This trick is based on what Einstein called “remote action”, but is officially known as: Quantum entanglement.. If the “teleported” photon comes into contact with one of the pairs of entangled photons and a measurement of the resulting state is sent to the receiver (where the other entangled photon is located), that last photon is the following. It went into the same state as the teleported photons.
Even a single photon is a complex process and there is no way to adapt it to an instant transport system like in Star Trek. Always for quantum teleportation Important applications In the real world, like anti-piracy communications and super-fast quantum computing.
The universe is everything our telescope reveals to us – every billion galaxies big Bang.. But is that all? The theory may not say: there can be a whole Multiverse From the universe there. The idea of a “parallel universe” is another familiar sci-fi theme, but when it appears on screen the details are usually slightly different from our universe. But the reality is perhaps much stranger than that. The basic parameters of the physics of parallel universes, such as gravity and the strength of nuclear forces, are different from ours. A classic portrayal of this truly different kind of universe and the creatures that call it home is Isaac Asimov’s novel The Gods Themselves.“((Double day: 1972)..
The key to a modern understanding of the parallel universe is the concept of “eternal inflation”. It depicts the structure of infinite space in a state of permanent and incredibly rapid expansion. Every now and then the local spots in this space, the autonomous big bang, give up the general expansion and begin to grow at a more moderate rate, forming material objects such as stars and galaxies within. Makes possible. According to this theory, our universe is one of these regions, but there can be countless other regions.
Like Asimov’s story, these parallel universes can have completely different physical parameters from ours. Scientists once believed that only a universe with much the same parameters as us could support life, but recent research has shown that the situation may not be so restrictive. Suggest, Previously reported live science.. So even though you probably won’t come into contact with Asimov’s aliens, as happens in the novel, there is still hope for Asimov’s aliens. Nevertheless, traces of other universes can be detected by us by other means. According to Ivan Baldley, professor of astrophysics at the University of Liverpool John Moore in the UK, the mysterious “cold spot” of microwave cosmic background radiation has even been suggested as a scar from a collision with a parallel universe. . It is written as. conversation..
Originally posted in Live Science..