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i mean, the only light could travel as fast as it self, so is there any other particles(not light) could travel faster than the speed of light???

thx

2007-07-19 17:16:49 · 13 answers · asked by Anonymous in Science & Mathematics Physics

13 answers

Not that we know of. Light is the cosmic speed limit. However, the idea of non-locality is quite interesting and deep. It posits that two virtual pairs of subatomic particles will communicate a change in their spin state instantly, even if those particles are light years apart.

2007-07-19 17:20:20 · answer #1 · answered by Anonymous · 0 0

Some theories allow for (or require) the existence of particles called tachyons which travel faster than the speed of light (supposedly). The less energy they have the faster they travel. If they had absolutely zero energy they'd be instantaneous and with infinite energy they would "just" travel at the speed of light. Just theoretical. None of these theories are "in fashion" at the moment. So these theories aren't (currently) attractive stories of "Why?".
One way to view anitparticles is to think of them traveling backwards in time. IF i consider a particle that passes the finish line BEFORE it starts then I'd say thats pretty darn fast, faster than instantaneous even. So in some ways of looking at it, there are particles that travel faster than light (in a vacuum).
In some medium (like air, water or glass - or really anything) CHerenkov (sorry about spelling) radiation is given off by particles traveling faster than light. What this means is that the speed of light in that material is not as fast as light in a vacuum and particles traveling fster than that are possible and in fact aren't all that rare. See wikipedia.

2007-07-19 17:34:09 · answer #2 · answered by Anonymous · 0 0

No, A hypothetical subatomic particle that always travels faster than the speed of light. TAYCHON IS ONLY IN A THEORY CANNPT ACTUALY BE PROVWN TO BE A LAW. THE LAW STATES: NO THING CAN TRAVEL FASTER THAN LIGHT BESIDES LIGHT OR ENERGY.
GRAVITY IS INSTANT FOR MOST PEOPLE AND WIDLEY ACCEPTED BY THE PUBLIC. BUT I THINK ENSTEIN SAYS THAT GRAVITY TRAVELS THE SAME AS ENERGY.
LIGHT IS 300KM/Sec
Formula
Rate=d/t
S=d/t

2007-07-19 17:18:22 · answer #3 · answered by Anonymous · 0 0

no nothing travels faster than the speed of light. the reason for this is because the faster you travel the slower time becomes till you reach the speed of light. at that point time stops for the particle or wavelength. since time cant slow down more than that that is the fastest speed there is, nothing is faster than instantaneous.

2007-07-19 18:18:45 · answer #4 · answered by Dennis P 2 · 0 0

No. The only thing I can think of are entangled particles, which can apparently transmit information about the state they are in instantaneously - not limited to light speed. But it's not really them traveling.

2007-07-19 17:28:53 · answer #5 · answered by eri 7 · 0 0

According to Einstein's theory this is not possible. It would require infinite amounts of energy to accelerate a particle to reach the speed of light. Funny enough, light can be measured in form of particles (photons) which do have mass, since you can bend light around a large mass and it cannot escape a black hole.

2007-07-19 17:22:18 · answer #6 · answered by Fast Eddie 2 · 0 1

Only the theoretical particles called tachyons... they travel faster then light or backward in time depending on how you look at it.

2007-07-19 17:23:57 · answer #7 · answered by bluecuriosity 2 · 0 0

I know nothing of about the tacyon that they are speaking about. However, according to Einsteins's Theory of Relativity, then no object can succeed the speed of light. Yet, about a two years ago, I do remember reading a article on livescience.com talking about how scientist managed to increase the speed of light using fiberoptics.

2007-07-19 17:48:53 · answer #8 · answered by kdl2584 2 · 0 0

Not in this universe. It is possible, according to Einstein that in another universe all matter must travel above the speed of light, they are called tachyons.

2007-07-23 15:33:43 · answer #9 · answered by johnandeileen2000 7 · 0 0

Particles that have mass cannot exceed or even reach the speed of light due to relativity effects. However research has indicated that megnetic fields may exceed the light velocity barrier.

2007-07-19 17:26:33 · answer #10 · answered by Foxfire 4 · 0 1

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