Nothing can exceed the speed of light - Einstein called it the "cosmic speed limit".
Yes, it can. Right now, a team of scientist just discovered an atom that is faster than the speed of light. Meaning if we go faster than light, it is possible to time travel. Just think, in a few decades from now people could time tavel!
albert einstein stated e=mc2 which means nothing is faster than light and time travel isn't possible. but albert einstein might be wrong and his theory might be garbage. because we have found a new particle in an atom called nutreno which in tests is faster than light. but the awser still remains that what if their using wormholes. it has also proven time travel to be possible. because some mad man says he is from the future and he told us not to travel faster than the speed of light.
No. Anything EXCEPT for light that travels as fast or faster than light would need a near infinite amount of energy, and I expect that near all of us know that near infinite energy is and was only available when the universe was compacted to smaller-than-atom size, as it contained all the energy that's ever existed. Even if we did manage to travel at or faster than light-speed, we would travel back in time. That means the faster than light we travel, the farther back in time we would go. Knowing that, so far, we know for a fact that faster-than-light travel has not been achieved, as we would've had impacts on this time period. Some believe that the pyramids were built by alien's, but I believe that we were the ones who built it, but us from the future. Does this answer your question?
A photon travels fastest through a medium, followed by sound, then electrons. Photons travel at the speed of light in a vacuum, which is faster than the speed of sound or electrons in a medium. Sound travels at a much slower speed than light, while electrons generally move at speeds that are significantly slower than both photons and sound waves.
Short Answer:The speed of light in a material depends on the type of medium. The speed of light in a medium is the speed of light in a vacuum divided by the index of refraction of the material.The index of refraction of glass is almost 1.5, so the speed of light in glass is about 66% of the speed of light in vacuum.More:Light passing through a material meets the constituent atoms and molecules.The atoms of different kinds of matter are different, so the interaction of light with different kinds of matter are different. The speed of light in each different kind of matter is different.There is a very sophisticated scientific explanation on how the process works, i.e. how the light disturbs the atom and then how the atoms re-radiate the light in a collective manner. It is a bit too technical for a question which is just a yes or no question.See related links for more detailed information.
Perhaps you mean the "radiative" zone. Not exactly. Well, the photons are emitted by an atom, and travel at the speed of light... but then, they are absorbed quite soon by some other atom. The end result is that it takes the energy over a hundred thousand years to get out of the radiative zone.
speed of light
Sound waves are the atoms in air vibrating and colliding in a pressure wave. If they are in a denser medium, like steel, they will travel faster, because there is less distance for each atom to travel. However, it will not slow down in air that's the same temperature because the atoms aren't getting farther apart. Therefore, it takes the same amount of time for one atom to be hit and to hit another. Therefore, the speed of sound remains the same.
bro, just do your physics homework
A photon is a sub atomic particle is a single enery packet of light As it has no mass it can travel at the speed of light (since it is light) and are created when an electron makes a quantum leap inside an atom.
electrons
No. There is no "normal" speed for electrons: they move at a wide range of speeds. When carrying electricity in a domestic wire, the actual speed of individual electrons is less than 1 millimetre per second! On the other hand, electrons in an atom can travel around the nucleus at over a million metres per second - though this motion is not like planetary orbits around the sun. However, this is nowhere near the speed of light which is appox 300 million metres per second.