Einstein's Predictions and the Role of Thought Experiments in Relativity

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In summary, before evidence was available to support it, Einstein's predictions based on relativity included time-dilation and the bending of light by gravity. These were later confirmed through experiments and observations. Einstein also used thought experiments, such as a train traveling at the speed of light, to help develop his theories, but these are not considered predictions. The relationship between theory and evidence is that evidence can either support or disprove a theory.
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doc.madani
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hello, could you tell me Einstein's predictions based on relativity before evidence was available to support it. And what is the relationship between theory and evidence to support a theory?

thank you
 
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  • #2
One prediction was the time-dialation predicted by special relativity. This was confirmed when an experiment was made whereby two airplanes few in opposite directions (one west, and one east) and the time shown by the synchronized clocks differed by a small amount.

Another prediction was the bending of light by gravity (gravitational lensing), this was famously confirmed by the observation of distant stars and galaxies during a solar eclipse (the image showed those galaxies to be somewhere slightly different from where they were predicted to be, due to the curving of light around the Sun).
 
  • #3
thank you very much

could you mention Einstein's thought experiements such as, the train traveling at the speed of light?
would the thought experiements be considered as a prediction on relativity?
 

1. What were some of Einstein's famous predictions?

Einstein's most famous predictions include the theory of relativity, the concept of spacetime, the bending of light by gravity, and the equivalence of mass and energy (E=mc^2).

2. How did Einstein's predictions change our understanding of the universe?

Einstein's predictions fundamentally changed our understanding of the universe by introducing the concept of spacetime, which revolutionized our understanding of gravity and led to a more comprehensive theory of the universe.

3. Are Einstein's predictions still relevant today?

Yes, Einstein's predictions are still relevant today and continue to be tested and verified through experiments and observations. His theories have also formed the basis for modern concepts in physics, such as quantum mechanics and the Big Bang theory.

4. Did Einstein's predictions ever face any challenges or controversies?

Yes, Einstein's predictions have faced some challenges and controversies, particularly in the field of quantum mechanics. For example, his theory of general relativity and the concept of spacetime have been difficult to reconcile with the probabilistic nature of quantum mechanics.

5. What impact did Einstein's predictions have on the scientific community?

Einstein's predictions had a significant impact on the scientific community, as they challenged traditional beliefs and led to new discoveries and theories. His work has inspired generations of scientists and continues to shape our understanding of the universe today.

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