by Tia Ghose, Senior Writer Ripped from the pages of a sci-fi novel, physicists have crafted a wormhole that tunnels a magnetic field through space. “This device can transmit the magnetic field from one point in space to another point, through a path that is magnetically invisible,” said study co-author Jordi Prat-Camps, a doctoral candidate in physics at the Autonomous University of Barcelona in Spain. “From a magnetic point of view, this device acts like a wormhole, as if the magnetic field was transferred through an extra special dimension.” The idea of a wormhole comes from Albert Einstein’s theories. In 1935, Einstein and colleague Nathan Rosen realized that the general theory of relativity allowed for the existence of bridges that could link two different […] Read More
Tag: Classical mechanics
According to a well-known theory in quantum physics, a particle’s behavior changes depending on whether there is an observer or not. It basically suggests thatreality is a kind of illusion and exists only when we are looking at it. Numerous quantum experiments were conducted in the past and showed that this indeed might be the case. Now, physicists at the Australian National Universityhave found further evidence for the illusory nature of reality. They recreated the John Wheeler’s delayed-choice experiment and confirmed that reality doesn’t exist until it is measured, at least on the atomic scale. Thought-provoking findings Some particles, such as photons or electrons, can behave both as particles and as waves. Here comes a question of what exactly makes a photon or an electron […] Read More