In fact, bending space-time is one theory of how superluminal – faster-than-light - speeds in space travel might be reached. Other researchers are trying to bend the rules rather than break them. So no rewriting of Einstein's theories turned out to be necessary. Finally, equipment issues, including a loose cable, were discovered as likely culprits, and the results were declared erroneous. Ideas as to either how these neutrinos could have actually broken the speed of light, or as to what errors could have caused the impossible results, abounded. In September 2011, physicists working on the Oscillation Project with Emulsion-tRacking Apparatus (OPERA) created a frenzy in the scientific community when they announced that their experiments resulted in subatomic particles called neutrinos traveling from the European Organization for Nuclear Research (CERN) near Geneva, Switzerland to the Gran Sasso National Laboratory near L'Aquila, Italy and arriving around 60 nanoseconds earlier than a beam of light. Light, in a vacuum, travels at approximately 299,792 kilometers per second (186,282 miles per second). But in science, if you make a hard-and-fast rule, someone will try to disprove it, or at least find a loophole. Light speed is considered the universal speed limit of everything, and this is widely accepted by the scientific community. A few cerenkov experiments were conducted in a vacuum and no radiation was found, so it is generally accepted that tachyons do no exist.Ĭhristina L.One of the tenets of Einstein's Theory of Special Relativity is that nothing can travel faster than the speed of light in a vacuum. If tachyons existed you would be able to see cerenkov radiation in a vacuum. This is analogous to the sonic boom produced when an airplane travels faster than the speed of sound in air or the shock wave at the bow of a ship. If a particle travels though a medium at a speed that is greater than light for that medium cerenkov radiation occurs. Photons travel at a slower speed inside a medium. This detector is able to measure the speed of a particle traveling through a medium. There have been a few experiments to find tachyons using a detector called a cerenkov detector. As a particle travels faster than the speed of light the denominator of mass=rest_mass*1/sqrt(1-v^2/c^2) becomes imaginary, the imaginary mass would counteract this and we (in the rest frame) would see something that had real mass in the rest frame but something that always traveled faster than the speed of light. An imaginary number is a number that is a multiple of the square root of a negative number. In order for something to travel at the speed of light it would have to have an imaginary number for its mass. Photons can travel at the speed of light because they have no mass and their energy is E=planck's constant * nu(frequency of the photon). These objects are sometimes called tardyons. So, it would take an infinite amount of energy for a massive particle to reach the speed of light. At the speed of light the mass becomes infinite. As is it can be seen by the following formula mass=rest_mass*1/sqrt(1-v^2/c^2). As a consequence of this theory, as a objects velocity increases its mass increases. As you probably know, objects with a real number for mass can never travel at the speed of light because of Einstein's theory of relativity. Tachyons are hypothetical particles that can only travel faster than the speed of light. I'm an italian student and I'd like to know if there are any proofs of the existence of the tachyons. Science of matter, energy, space and time.Fermilab Accelerator Science and Technology Facility.
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