- published: 07 Sep 2012
- views: 1126737
Faster-than-light (also superluminal or FTL) communications and travel refer to the propagation of information or matter faster than the speed of light. Under the special theory of relativity, a particle (that has rest mass) with subluminal velocity needs infinite energy to accelerate to the speed of light, although special relativity does not forbid the existence of particles that travel faster than light at all times (tachyons).
On the other hand, what some physicists refer to as "apparent" or "effective" FTL depends on the hypothesis that unusually distorted regions of spacetime might permit matter to reach distant locations in less time than light could in normal or undistorted spacetime. Although according to current theories matter is still required to travel subluminally with respect to the locally distorted spacetime region, apparent FTL is not excluded by general relativity.
Examples of FTL proposals are changing the "frequency" of mass to a higher state by applying high-frequency waves of energy, the Alcubierre drive, and the traversable wormhole, although the physical plausibility of some of these solutions is uncertain.
Close your eyes go to sleep
Close your eyes get so dizzy
World is spinning in your bed
I know where the sun goes
It's waking up the sparrows
In England it's morning
In time you'll see that some things
Travel faster than light
In time you'll recognise
That love is larger than life
Now you know what you're missing
Now you've seen that I'm willing
If you're looking for the message
Close your eyes
Do you hear what I'm thinking?
Is it how you imagined?
In time you'll see that some things
Travel faster than light
In time you'll recognise
That love is larger than life
And praise will come to those whose kindness
Leaves you without debt
And bends the shape of things
That haven't happened yet
Close your eyes
Colours changing like a lizard
Close your eyes
I know where the sun goes
I have seen the world turning
In time you'll find that some things
Travel faster than light
In time you'll recognise that love is larger than life
And praise will come to those whose kindness
Leaves you without debt
And bends the shape of things to come