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madness
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If I push a rigid object at one end, the whole rod should move instantaneously. Would this mean that a signal has been transmitted from the end which is pushed to the the far end faster than the speed of light?
A faster than light signal is a hypothetical signal that travels faster than the speed of light, which is considered the ultimate speed limit in the universe according to the theory of relativity.
According to our current understanding of physics, faster than light travel is not possible. The theory of relativity states that as an object approaches the speed of light, its mass increases infinitely and it would require an infinite amount of energy to accelerate it further.
If a faster than light signal was sent, it would violate the principles of causality and time travel. This would lead to paradoxes and contradictions in our understanding of the universe.
No, there are no observed instances of faster than light signals. All known signals, including electromagnetic waves and gravitational waves, travel at the speed of light.
There is ongoing research and theories on faster than light signals, including the concept of wormholes and the theoretical existence of particles called tachyons that could travel faster than light. However, these theories are not yet proven and remain speculative.