Speed of Light

# Will light speed travel be possible in our lifetime?

567 ###### 2012-04-11 22:51:41

Probably not in five lifetimes! Light speed travel is a work of fiction, like in sci fi movies. No human will ever travel at the speed of light.

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## Related Questions The speed of light in water is less than the speed of light in space. Only light can travel at the speed of light. You can't travel at the speed of light. It might be possible, in theory, to approach it, but not quite to reach it. The only way to travel at the speed of light is to not have any mass. It's not possible for any particle with a non-zero invariant mass to travel at the speed of light in a vacuum. It must always travel more slowly than that.It is possible for particles to travel faster than the speed of light in some other material. It is not possible for any object with any mass to travel at the speed of light. It is possible to travel at 99.9999999999999999999999999999999999999% the speed of light, you could even travel at "99.9 followed by a trillion trillion 9s"% of the speed of light but never quite 100%.According to our current mathematical theories, for an object with any mass to travel at the speed of light it would take infinite energy to attain that speed. In theory, time travel can be accomplished by traveling the speed of light. However, the theory also states that travel at that speed is not possible. No. By travelling FASTER than the speed of light, this might in theory let you travel back in time. However, it seems likely that neither travelling faster than the speed of light nor time travel is possible. Also note that a human being cannot travel at the speed of light; with a super-spaceship, we might in theory approach this speed, but not quite reach it. Only particles with "zero rest mass" (such as photons or gravitons) can travel at the speed of light (and, in a vacuum, they can ONLY travel at the speed of light). An object (like us) whose common situation is to be below the speed of light, can never quite reach the speed of light. In theory, such an object can get quite close to the speed of light, though. There are particles - such as photons - that can only travel at the speed of light. Not if you have any mass when you're not moving. It is currently believed that this is not possible. It isn't clear at all what you mean. In any case, it isn't possible to travel at the speed of light - except for specific particles, such as photons (pieces of light), which can ONLY travel at the speed of light. That statement is neither fact nor opinion.The fact is that no 'thing' can travel at the speed of light, so the fastestspeed possible for any 'thing' is less than the speed of light.That's the fact. A man can't travel at the speed of light.A man can't travel at the speed of light.A man can't travel at the speed of light.A man can't travel at the speed of light. At nearly the speed of light? Yes. There's no practical way to do it, but it's obviously possible, neutrinos do so. Speed of light is possible within a sphere.whereas controlled properties of the sphere can be introduced with technoligy in the year 2027. Yes. Light particles travel at the speed of light, hf = mc^2; m=hf/c^2 = h/cw = 7.40E-51f. Not by our current understanding of physics or technology. The universal speed limit for material objects is c : the speed of light in a vacuum. There is no way to travel at the speed of light. With current technology, it is not possible to even come anywhere close to the speed of light. For example, traveling at 1/10 the speed of light is still science fiction. On the other hand, for anything that does NOT travel at the speed of light, it is impossible to actually attain the speed of light. In theory you might get close. There are some particles, such as photons and the hypothetical gravitons, which ONLY travel at the speed of light. As far as is known nothing with mass can travel at the speed of light. There are 'things' that exceed light speed, such as wave guides, but mass or information cannot do so. What is the speed of light? About 300,000,000 meters per second - enough to travel all around the Earth 7.5 times in one second. Can anything travel nearly as fast? - Yes, in particle accelerators particles are regularly accelerated to over 99% of the speed of light. According to current scientific understanding: (a) it is not possible to transfer matter, energy, or information faster than the speed of light. (b) An object that regularly travels at a slower speed can't be made to travel at the speed of light - it can only approach it. (A photon, that is, a speed of light, can only travel at the speed of light.) No. Nothing with mass can travel at the speed of light. It is believed that the speed of light is the highest possible speed. ###### PhysicsSpeed of LightAstronomyGeneral and Special RelativityScienceSpace Travel and Exploration Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.