Hmm, so tachyons is also figment of someone's imagination.
First they say nothing can be faster than light.
Faster speed more energy.
Then they say Techyon can be faster than light.
Then they say Techyon cant ever go SLOWER than light.
Energy reduces, Techyon speed increases!
Techyon can help to communicate with past!
And then this theory is used to counter my question
It can be proved that however energy you supply to a particle it cannot be accelerated to super-light speeds.
if say a person I is stationary, person II is moving at a particular direction with a velocity 0.5c and a light pulse is there which they both record speed of, moving in the same direction as the second person. Contrary to the moving person recording the speed of the pulse to be 0.5c , both the persons record the same speed c. You are trying to apply the Newton's laws to particles with speeds comparable to c, which is absurd. The tachyons will be particles which do not obey Newton's laws, and so do normal particles which are moving at the speeds more than 0.01c. For them the postulates of relativity hold true and not Newton's laws of motion.
One more thing is that if you do manage to go faster than light, then you'll go in the past. So whenever you die, you'll die before you were born. In such a frame, if we fire a bullet and it hits a bird, then the bird will be dead before the bullet is fired from the gun. As you'll agree this can never happen, the 'effect' cannot exceed the 'cause', so instead of obtaining particles moving with a speed greater than c by applying energy, we found out that c is the ultimate speed for any material particle or information, no matter how light the particle is.
Nobody here said that tachyons slow down when we supply them energy, so how did you come to know of it?
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It is just a forum! where is the proof?
Read it for god's sake!
First they say nothing can be faster than light.
Faster speed more energy.
Then they say Techyon can be faster than light.
Then they say Techyon cant ever go SLOWER than light.
Energy reduces, Techyon speed increases!
Techyon can help to communicate with past!
And then this theory is used to counter my question
It can be proved that however energy you supply to a particle it cannot be accelerated to super-light speeds.
if say a person I is stationary, person II is moving at a particular direction with a velocity 0.5c and a light pulse is there which they both record speed of, moving in the same direction as the second person. Contrary to the moving person recording the speed of the pulse to be 0.5c , both the persons record the same speed c. You are trying to apply the Newton's laws to particles with speeds comparable to c, which is absurd. The tachyons will be particles which do not obey Newton's laws, and so do normal particles which are moving at the speeds more than 0.01c. For them the postulates of relativity hold true and not Newton's laws of motion.
One more thing is that if you do manage to go faster than light, then you'll go in the past. So whenever you die, you'll die before you were born. In such a frame, if we fire a bullet and it hits a bird, then the bird will be dead before the bullet is fired from the gun. As you'll agree this can never happen, the 'effect' cannot exceed the 'cause', so instead of obtaining particles moving with a speed greater than c by applying energy, we found out that c is the ultimate speed for any material particle or information, no matter how light the particle is.
Nobody here said that tachyons slow down when we supply them energy, so how did you come to know of it?
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It is just a forum! where is the proof?
Read it for god's sake!