is it possible for mankind , to travel , someday , with the speed of light ?

Answer 1

Unless an exotic form of energy is discovered, we will never be able to travel "with the speed of light."

One of the answers above says that we can't travel that fast because that is faster than "12g"s. This explanation is incorrect. G's are a measure of acceleration (where the unit of measure is the Earth's gravity, 9.81 m/s). The speed of light is a measure of velocity, not acceleration. Consequently, the speed of light is neither "greater than 12 Gs" nor less. It is "comparing apples and oranges," so to speak.

As far as we know now, we can never achieve or exceed the speed of light, at 3x10^8 m/s. We can not match this speed because this is the speed of energy unencumbered by matter. In other words, consider how fast you could push a car (i.e., matter) as you add more and more people (i.e., energy) pushing. No matter how many people you add to help push the car, the people will never be able to push the car at a speed as fast as they could achieve if they were running and pushing nothing. So, too, with energy, every extra bit helps - - but as the matter it is pushing moves faster and faster, it helps less and less.

Of course, just as you could always push a car faster if you could find people who could run faster. So, too, with energy, you might theoretically be able to move an object faster than the speed of light if you found an exotic form of energy that travelled faster than the speed of light. However, we have no reason for believing that such novel forms of energy exist. They have never been observed, and are, at this time, purely the product of science fiction.

For this reason, it is not realistic to expect that we could ever travel "with the speed of light."

Nor is it realistic to expect that we will ever be able to travel via wormholes. Most known solutions of general relativity which allow for traversable wormholes require the existence of exotic matter, a theoretical substance which has negative energy density. Like "exotic energy," this "exotic matter" has never been observed.

@ Even if we could travel faster than the speed of light, we would still observe the oncoming light from a destination before we would reach the destination. It does not explain the speed limitations of relativity to say that you "can't arrive somewhere before you can see it." That argument is not valid.

@Butterscotch gives a fun answer: "Of course it will be possible some day. Many UFOs already have this capacity. One day our technology will catch up." Unfortunately, there is no credible evidence that space aliens have ever visited Earth.

@DrAnders_pHd gives an unusual answer: "Yes. Easily and energy efficient too. And without breaking any laws of physics. We are maybe 20 years from it becoming a reality but it will happen. Wish I could tell you more but I am writing a book on the subject. " This answer is either a joke, or the poor man is delusional. His answer is nonsense. It is akin to the countless frauds who have claimed to constructed perpetual energy devices.

Answer 2

It all depends on whether relativity is an absolute law of the universe or whether there are exceptions. As we currently understand physics, as an object approaches the speed of light its mass increases toward infinity and therefore the energy needed to accelerate the object to greater speeds increases towards infinity. It is therefore impossible to accelerate an object that has mass to the speed of light. However, what we think we know about science is not always the final word on the subject. It was believed not so long ago that the atom was the smallest unit of matter. Then protons, neutrons and electrons were discovered. Then Quarks, leptons and so on. The point is that what we consider to be absolute laws of physics can change as new discoveries are made. I cannot say whether or not faster than light travel will ever be possible, only that it is not possible with the current understanding we have of the way the universe works.

Answer 3

Relativity says no. The amount of energy needed to accelerate a object with non-zero mass up to the speed of light is...infinity. We cannot generate an infinite amount of energy; it's simply impossible.

However, it is possible for us to get close to the speed of light. 99% the speed of light is not out of reach, given the right technology. And it may be possible for an extremely advanced civilization to "travel" without moving at all, using "wormholes".

Answer 4

No because to accelerate a person to the speed of light would require infinite energy which is not avaiable.

Bramble

Answer 5

you are able to return and forth to the previous of the destiny. you may desire to return and forth to an merchandise that has a very extreme mass, which incorporates a black hollow, and orbit around it for 5 years. meanwhile, Earth and this is inhabitants will age 200 years. So in case you left in 2010 you may return in 2015, even yet it could be 2210 in the international. to bypass forward in time you merely might desire to get to ninety 9.8% the fee of sunshine and return and forth at that velocity for some years to get exceedingly into the destiny.

Answer 6

Yes. Easily and energy efficient too. And without breaking any laws of physics. We are maybe 20 years from it becoming a reality but it will happen. Wish I could tell you more but I am writing a book on the subject.

Answer 7

Never dude. Might be close but never at the speed of light.

Answer 8

Is it too simplistic to suggest you can't travel at light speed because you can't arrive somewhere before you can see it?

Answer 9

Actualy it will never be posible because the speed of light is faster than 12G's and above 12G's you passout then usually die.


Sooooo....no

Answer 10

Of course it will be possible some day. Many UFOs already have this capacity. One day our technology will catch up.