Why do people think that there is nothing faster than the speed of light?

Question

Seriously, you know that this is not true right?

Answer 1

Speed of light is proof to be the faster speed.
Anyway, I do believe that speed of light isn't the fastest. The fastest speed in this universe is magnetic field. UFO which is the fastest vehicles using magnetic field to fly.

Answer 2

That's what I can't get through to these misinformed people either. As you would know, you can travel faster than light....otherwise how did you get here??:):)

I have explained time and time again on here that the ONLY things that Special Relativity precludes is travelling AT the speed of light AND accelerating an object IN space TO the speed of light. As a matter of fact, there are equations in SR that require objects to be travelling FASTER than the speed of light and NEVER as slow as the speed of light. Now whilst these equations stipulate that those objects have "imaginary" mass, that is nothing compared to some of the weird properties that are bandied around in physics for some ordinary day things. The mass is only imaginary when viewed from our own perspective.

It will take a lot of research and a bit of open minded thinking on the part of scientist, but given what I have found on the research already being done, I would say we will have the capability to produce a warp drive engine within the next 50-100 years. Our main hurdle isn't the theory behind it all, it's getting materials and engineering technology upto speed. Unfortunately, that sometimes lags behind theory rather a long way.

Answer 3

well ya because i beleive their is something faster, and its called a tachyon,read this: tachyon (from the Greek ταχύς takhús, meaning "swift") is any hypothetical particle that travels at superluminal velocity. The first description of tachyons is attributed to German physicist Arnold Sommerfeld, but it was George Sudarshan[1][2] and Gerald Feinberg[3] (who originally coined the term) in the 1960s who advanced a theoretical framework for their study. Tachyons have recurred in a variety of contexts, such as string theory, and in science fiction. In the language of special relativity, a tachyon is a particle with space-like four-momentum and imaginary proper time. A tachyon is constrained to the space-like portion of the energy-momentum graph. Therefore, it can never slow to light speed or below.

As mentioned above, a tachyon is a particle with space-like four-momentum. If its energy and momentum are real, its rest mass is imaginary. One curious effect is that, unlike ordinary particles, the speed of a tachyon increases as its energy decreases. This is a consequence of special relativity because the tachyon, in theory, has a negative squared mass. According to Einstein, the total energy of a particle contains a contribution from the rest mass (the "rest mass-energy") and a contribution from the body's motion, the kinetic energy. If m denotes the rest mass, then the total energy is given by the relation


We take this relation to be valid for either tachyons or regular particles ("tardyons"). For ordinary matter, this equation shows that E increases with increasing velocity, becoming arbitrarily large as v approaches c, the speed of light. If m is imaginary, on the other hand, the denominator of the fraction must also be imaginary to keep the energy a real number (since a pure imaginary divided by another pure imaginary is real). The denominator will be imaginary if the quantity inside the square root is negative, which only happens if v is larger than c. Therefore, just as tardyons are forbidden to break the light-speed barrier, so too are tachyons forbidden from slowing down to below light speed.

The existence of such particles would pose intriguing problems in modern physics. For example, taking the formalisms of electromagnetic radiation and supposing a tachyon had an electric charge—as there is no reason to suppose a priori that tachyons must be either neutral or charged— then an accelerating tachyon must radiate electromagnetic waves, just like ordinary charged particles do. However, as we have seen, reducing a tachyon's energy increases its speed, and so in this regime a small acceleration would produce a larger one, leading to a run-away effect similar to an ultraviolet catastrophe.

Some modern presentations of tachyon theory have demonstrated the possibility of a tachyon with a real mass. In 1973, Philip Crough and Roger Clay reported a superluminal particle apparently produced in a cosmic ray shower (an observation which has not been confirmed or repeated) [1]. This possibility has prompted some to propose that each particle in space has its own relative timeline, allowing particles to travel back in time without violating causality. Under this model, such a particle would be a "tachyon" by virtue of its apparent superluminal velocity, even though its rest mass is a real number.
theirs still more to if u wanna look

Answer 4

Darn it, they just can't prove Einstein wrong. Maybe some day. Sigh. Space can expand faster than the speed of light. If we peer back towards the beginning of time and see a galaxy 12 billion light years away, it is receding from us at quite a clip because of the expansion of space. Things beyond 14 billion LY could well be receding from us faster than light speed. The universe could be much, much bigger than 28 billion LY in diameter. According to Alan Guth, that's the $64,000 question.

Answer 5

Well there are speeds faster than the speed of light, but there isnt an object that can go faster than the speed of light without disspearing completely and then re appearing somewhere else which theoretically would require a load of energy according to that famous guy.

Answer 6

Because the closer you get to the speed of light, the more mass the object has. As the object aproaches the speed of light, more and more force is needed to accelerate the growing mass by the same amount, meaning no object with mass can ever travel faster than light.

Answer 7

Alien The Electric Field ( Not To B Confused With Electro Magnetic Field ) Travels At C^infinity

Answer 8

no...the speed of sound is faster in denser materials...in fact the speed of sound in a vacuum is zero. also...the speed of electrons is greatest in super-cold semi-conductors.

Einstein's theory only proves that matter can not travel as fast or faster than the speed of light. But data may be able to. And if that data is used to construct something...one might be able to "send" an object faster than the speed of light (i.e. teleport).

Answer 9

Do you mean under the natural laws of physics, or nothing can travel faster than the speed of light.?

Answer 10

The theory of relativity shows that the concepts of space and time depend on the observer. Two events that seem to be at the same time for me, may seem to happen at different times for you.
If something travels faster than light (tachyon), some observers would see it as travelling back in time. In fact, from the perspective of that tachyon, the rest of the universe would seem to run backward in time.
There are serious philosophical problems with the idea of travelling back in time!

Answer 11

I think (?) you could pull in general relativity, not just special relativity..... so you could sort of say that it's also because light travels along the "geodesics", which by definition are the shortest paths through the space-time continuum; hence by definition, its speed is the "fastest" that anything can travel through that same space-time.

(note that the speed of light is greatest in a vacuum, I think, and is slower through other materials... but then so is the speed of everything else!)