Tuesday, November 22, 2011

So far, Einstein has been right.

The Astronomy Cast podcast talks about Einstein's life and his work.

At least once a week we get an email claiming that Einstein was wrong. Well you know what, Einstein was right. In fact, as part of his theories of Special and General Relativity, Einstein made a series of predictions about what experiments should discover. Some explained existing puzzles in science, while others made predictions that were only recently proven true.



Albert Einstein is perhaps the most famous scientist in history, known for his groundbreaking theories of Special and General Relativity. While many people are quick to question his ideas, claiming that he must have been wrong about some things, the truth is that Einstein's predictions have held up remarkably well over time.
 
As the Astronomy Cast podcast points out, Einstein's theories made a series of predictions about what experiments should discover. Some of these predictions explained existing puzzles in science, while others made bold claims that were only recently proven true.
 
For example, one of Einstein's most famous predictions was the existence of black holes. While other scientists at the time dismissed the idea as impossible, Einstein's calculations showed that massive objects could warp space-time so much that nothing - not even light - could escape their gravitational pull. It wasn't until decades later that astronomers finally discovered evidence of these mysterious objects lurking in our universe.
 
Another prediction that Einstein made was related to the way gravity affects light. According to his theory of General Relativity, light should be bent by large gravitational fields - something that had never been observed before. In 1919, however, an expedition led by Sir Arthur Eddington set out to observe a solar eclipse and measure this effect. To everyone's amazement, they found that Einstein was right - the positions of stars near the sun appeared shifted due to its immense gravity.
 
Of course, there are still plenty of mysteries left to solve in physics and astronomy today. But when it comes to understanding some of the most fundamental aspects of our universe - from black holes to the very fabric of space and time itself - we can rest assured that Einstein got a lot more right than he got wrong

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