Posts Tagged ‘Electromagnetism’

Spanish Scientists Create First Ever Magnetic Wormhole

September 13, 2022

Here’s another video about weird and very cool science of the type that just might one day take us to the stars. This video from Tech Space on YouTube discusses wormholes and the invention of a magnetic wormhole by researchers in Spain. Wormholes are the holes in spacetime which can act as short cuts from one part of the universe to another. They were first thought up in the 1930s by Albert Einstein and Nathan Rosen, hence they are sometimes called Einstein-Rosen bridges. The idea is that they are created by Black Holes and extend across a higher dimension to an exit elsewhere in the universe, a White Hole. No-one has yet discovered a wormhole in space, despite them frequently being used in Science Fiction. The video here shows a clip from Star Trek among others. There is a problem with using wormholes as such cosmic subways. Their energy state is so precarious, that the passage of a single photon down one would disrupt and destroy. Also, if a spaceship fell into a Black Hole, it would never be able to escape and would continue falling forever.

Scientists have suggested ways round these problems. For example, the mouth of the wormhole could be extended beyond the Black Hole’s event horizon and kept open using exotic matter. Exotic matter is a theoretical kind of matter, different from antimatter, that has negative mass. This means that if it was placed next to a similar mass of ordinary matter, it would accelerate away with no means of propulsion.

The view inside a wormhole would be extremely strange. The wormhole mouth would appear as a globe, and the sides of the wormhole would show distorted views of the region of space the travellers had just left and to which they were travelling to. It would also be possible to create a time machine using these wormholes. One end could be accelerated to the speed of light so that it whipped back on itself and went backward in time. At least, that’s how I understood this part of the video, but I may have misunderstood. The video also states that scientists have speculated there are tiny wormholes opening up at the atomic level, at 10-33 cm. They’ve got their figures wrong there, as 10 to 33 centimetres is clearly well above the atomic scale. I think they mean 10-33.

While the Spanish scientists haven’t created one of these wormholes, they have created a magnetic wormhole using rare and exotic materials which already exist. This wormhole device is circular. There are magnetic mouths at both ends of the device, but the magnetic field linking them cannot be indetectable and so moves through another dimension. The scientists suggest that uses for the technology may include magnetic resonance scanners for medicine, so that the patient doesn’t have to be jammed so close to the scanning apparatus.

The video is wrong about this being the first wormhole to be discovered. In fact, the wonderful space and science vlogger Anton Petrov put up a video a little while ago reporting that scientists had created a subatomic wormhole. There are also problems with exotic matter, as this would allow for antigravity and thus break the laws of physics, as shown in a Beeb documentary about the real search for antigravity propulsion. But this is a fascinating invention. One of the pieces of evidence for there being more than three dimensions, four if you count time, is that if you write the equations governing electromagnetism for four dimensions, they come out as the laws of gravity.

Now if only there was a way to transform magnetism into gravity, such a wormhole created by the Spanish scientists might start giving us a way to open up the universe.