what happens if u go faster than the speed of light?
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This was accepted in classical physics, and the special theory of relativity took pains to preserve the rule, despite the relativity of an object's motion. But if something can travel faster than light, it can travel backward in time, according to the theory.
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So will it ever be possible for us to travel at light speed? Based on our current understanding of physics and the limits of the natural world, the answer, sadly, is no. ... So, light-speed travel and faster-than-light travel are physical impossibilities, especially for anything with mass, such as spacecraft and humans.
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There is no limit to how fast the universe can expand, says physicist Charles Bennett of Johns Hopkins University. Einstein's theory that nothing can travel faster than the speed of light in a vacuum still holds true, because space itself is stretching, and space is nothing.
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Tachyons are particles that have mass, but travel faster than light. As most of us have heard from a fellow named Albert, nothing travels faster than light. In fact, only massless particles, like photons, travel at light speed at all.
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Particles Found to Travel Faster Than Speed of Light. An Italian experiment has unveiled evidence that fundamental particles known as neutrinos can travel faster than light.
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However, faster-than-light communication (which includes travel) breaks something very fundamental about physics, something that is often ignored by sci-fi, and difficult for non-physicists to understand. If you allow faster-than-light (FTL), then you break causality: you are allowing time-travel.
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The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
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The faster the relative velocity, the greater the time dilation between one another, with the rate of time reaching zero as one approaches the speed of light (299,792,458 m/s). This causes massless particles that travel at the speed of light to be unaffected by the passage of time.
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“There is no real practical limit to how fast we can travel, other than the speed of light,” says Bray. Light zips along at about a billion kilometres per hour. ... Therefore, humans should – in theory – be able to travel at rates just short of the “Universe's speed limit”: the speed of light.
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Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum. We call this the "speed of light"; nothing can move faster than the speed of light.
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Going through a wormhole doesn't mean you travel faster than light. ... It's just that the spaceship going through a wormhole had to travel a shorter distance to get to its destination compared to another spaceship traveling in normal space.
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That velocity can exceed the speed of light in a vacuum, although under typical circumstances it does not. On the other hand, a pulse of electromagnetic radiation can never move faster than the vacuum speed of light.
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Is it possible that dark energy could travel faster than light? Yes! Dark energy consists of neutrinos and neutrino-like symmetric particles that travel at (infinitesimally) greater than the speed of light.
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Gamma Rays May Move Faster Than Light, Causing Them To Go 'Backwards In Time,' Say Researchers. Two years ago, researchers made the amazing discovery that in some specific instances in space, gamma-ray burst pulses repeated themselves in a way that made it seem as if they were going backwards in time.
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But when light is sent out, as a photon, it has to accelerate from speed 0 m/s to 3,0*10^8 m/s. ... Light can't just suddenly move at its maximum speed, it has to accelerate like every other object in motion has to.
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Because light travels at 45 degrees, anything traveling slower than light from this t=0 event is closer to the time axis than the light rays, and anything faster than light is further away from the time axis. The light rays define the future lightcone.
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Electromagnetic waves are waves that can travel through matter or through empty space. spaceship travels faster than the speed of light? In reality, noth- ing travels faster than the speed of light. In empty space, light travels at a speed of about 300,000 km/s.