I found some formulas from my physics class.. I found these extremly interesting because they explains what will happen if a objects with mass travel as fast a lightspeed, and why it can't travel faster..
This formula shows how much a object weight will be (m2) if the object had a starting weight of (m1).
m2 = m1 / √ (1 – (v^2 / c^2))
So: v = speed, c = lightspeed, m1 = starting mass, m2 = mass when reched the speed (v) with the starting mass (m1).
Speed of light (c) = 299 792 458 m/s.
Making a stone of 1 kg reach a speed of 99% of lightspeed will result in:
m2 = 1,0 / √ (1 - (296 794 533 ^ 2 / 299 792 458 ^ 2)) = A stone with the mass 7,09 kg.
Making a stone of 1 kg reach a speed of 99,99% of lightspeed will result in:
m2 = 1,0 / √ (1 - (299 762 479 ^ 2 / 299 792 458 ^ 2)) = A stone with the mass 70,71 kg.
But what if we reach a speed equal to lightspeed then?
m2 = 1,0 / √ (1 - (299 792 458 ^ 2 / 299 792 458 ^ 2)) = 1,0 / √ (1 - 1) = 1,0 / 0,0 = Endless mass!!
This formula also work for how time is relative to the traveler and the observer.. At 99,99% lightspeed the observer can look at a clock at travelers hand and see that it goes 70,71 times slower than the clock at the observers hand. Also the traveler will get streched out and look 70,71 times longer at the direction in which he is traveling..
So here is a funny fact, what if the traveler reaches speed of light?
Remember that before he is able to reach the speed of light everything around him that are standing still relative to his startingpoint will have a time that moves faster and faster.
- So the traveler can't really reach the speed of light without letting a infinitive of time pass by around him..
- And if and when he ever will reach the speed of light he will be so massive that the whole universe collected mass would be infintive low relative to the travelers mass..
- Also he will get streched out to such a infinitive that he will be everywhere at once.
An electron that have a mass of 9 * 10^-31 kg will also behaive in the same way..
Here comes some effects of the above calculations (may be incorrect

):
As a observer we can see something that go faster and faster will have a clock that moves slower and slower, so if he reaches more than the speed of light his clock should move backwards instead. The biggest problem here is that something with a mass can never reach the speed of light by accelerating without taking a eternity relative to observer (that in fact want him to go back in time, not forward).
So what is needed here is a spaceship that can move from 0 to above the speed of light by "jumping" to this speed instead of accelerating.
Imagen standing on the pole star (that is about 400 lightyears away) and having a telescope in the hand looking at earth. Then we can see what happened on earth 400 years ago.. Now imagen having a spaceship that can "jump" this distance without accelerating at all. Then we would be able to travel 400 years back in time.
That is why a wormhole would come in handy

But a wormhole that would fit a standard size human can only be created if we had a machine that was powerfull enough to take the size of Jupiter and compress it into a black hole.. But even then it would be imposible to get thru without getting ripped apart..
The answrr would maybe be to send massless particles like photons.. But the problem here is that because they are massless they are forced to travel in the speed of light.
Here is where I present a theory that I am having

So then we may need a particle with negative mass. An antiparticle.
A particle with negative mass will be forced to travel backwards in time, and as a observer they will look at is as a normal particle, but infact when it is moving backwards in time it will seem to have a normal mass and a straight movement but infact it is all negative..
These are created in nature all the time, even if they get aniliated at almost the same moment as they are created, this is because everytime a antiparticle is created from nothing a normal particle is also created from nothing, and when they hit eachother they dissapere again.
But if it is posible to isolate the antiparticles with a magnetic feild I think it would be possible to send information in form of these backwards in time..
Sorry about the essay, but I find this incredibly interesting and can keep talking about it for hours

I can present more of my theories if anyone is interested
