Cosmological Constant facts
While investigating facts about Cosmological Constant, I found out little known, but curios details like:
Stephen Hawking once sent his PhD student away with a very hard problem – finding exact rotating black hole solutions of Einstein’s equations with a cosmological constant – and was stunned when he came back a few days later with the solution
Einstein did not believe in black holes and created the cosmological constant to contrast the idea of an expanding universe because he thought it was static
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 4 of the best facts about Cosmological Constant I managed to collect.
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Einstein inserted a cosmological constant into his theory of general relativity to force the equations to agree with the thinking of physicists at the time that the Universe was static. He called this the greatest blunder of his life. It may have been correct after all.
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Albert Einstein in 1917 realized that his theory of general relativity predicted an expanding universe when he was certain it was static in size, so he added a "cosmological constant" to his calculations to account for this. In 1929, Hubble discovered that the universe is in fact expanding.
