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Comment by vlisivka | Hacker News Reader

Wave cannot travel faster than speed of wave in medium.

Matter is form of electromagnetic wave, thus matter cannot travel faster that speed of electromagnetic wave in medium ("vacuum").

Everything that is not a form of electromagnetic wave, OR disconnected from electromagnetic medium, will be not bound to speed of light.

Imagine water and water waves. Water waves will never travel faster than speed of wave in water.

BUT, you can freeze water and push it faster than water wave just because it is not a part of water anymore.

I hope, super-cold vacuum (below 0K) or matter in cocoon of super-cold vacuum will be able to travel faster than speed of light.

PS.

Of course, I cannot even imagine, how we can freeze vacuum, because we cannot even interact with it.

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The entire point of relativity is that there is no medium. There are plenty of particles that do not interact electromagnetically - the neutrino for example.

The speed of light has to do with the nature of reality, not the method of transportation.

Relativity is theory. We are talking about real world.

We already know, that vacuum can generate particles, thus it is not completely empty:

http://scienceblog.com/40901/theoretical-breakthrough-genera...

You can find much more information about faster than speed traveling here: http://en.wikipedia.org/wiki/Faster_than_light_travel .

Relativity describes the real world.

You seem to want to talk about theoretical ideas that have no evidence.

You quite misunderstood that article, it's not the vacuum that produces the particles, it is the massive energy they are beaming that produces them.

The stuff in the wikipedia article is just ideas that may work mathematically but have little bearing on the real world. At least for now. Maybe someday we'll figure them out, but for now it's just ideas.

> Relativity describes the real world.

Any theory describes real world to some degree.

> You seem to want to talk about theoretical ideas that have no evidence.

:-/ We can test my ideas in your laboratory, of course.

> You quite misunderstood that article, it's not the vacuum that produces the particles, it is the massive energy they are beaming that produces them.

Do you really read article? Of course, energy is necessary, because two vacuum particles will cannot escape each other and will annihilate. But you cannot produce particle using just energy.

> The stuff in the wikipedia article is just ideas that may work mathematically but have little bearing on the real world. At least for now. Maybe someday we'll figure them out, but for now it's just ideas.

Some far galaxies are traveling from us much faster than speed of light because of space expanding. Thus theory of relativity will work correctly for distances less than 1B of light years, but it is not correct for larger distances. Are you agree?

"But you cannot produce particle using just energy."

Yes you can.

And no I don't agree with your last sentence.

No, you cannot.

Do you know about Big Bang?

What do you want to know about the Big Bang?

And why in the world do you think you can not produce particles using just energy? It happens all the time.

It is easier to just think of it as freezing ether.

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