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SGT
An Israeli scientist proposed a time machine that does not need exotic materials. See here
A time machine is a hypothetical device that can travel through time, allowing a person or object to move either forwards or backwards in time.
At this time, time travel is not possible according to current scientific understanding. However, there are theories and ongoing research in the field of physics that explore the possibility of time travel.
The concept of a time machine is based on the theory of relativity, which states that time can be dilated or stretched depending on an object's speed and gravitational field. A time machine would need to manipulate these factors in order to travel through time.
The consequences of time travel are unknown and highly debated. Some theories suggest that even a small change in the past could have major ripple effects on the future, potentially leading to paradoxes or altering the course of history.
No, there is no evidence that a time machine has been created or successfully used. However, there have been reported instances of people claiming to have built or used a time machine, but these claims have not been scientifically verified.