Brian Greene Introduces the Theory of General Relativity | Summary and Q&A

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December 15, 2014
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World Science Festival
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Brian Greene Introduces the Theory of General Relativity

TL;DR

Einstein challenged the conventional understanding of gravity and spent 10 years developing his general theory of relativity to explain how gravity works through the curvature of space.

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Questions & Answers

Q: How did Einstein approach the problem of understanding gravity?

Einstein challenged the conventional understanding of gravity and sought to explain how it works through a fresh perspective. He questioned Newton's laws and spent 10 years developing his own general theory of relativity.

Q: What did Newton's laws of gravity provide?

Newton's laws of gravity provided an equation that described the effects of gravity. However, they did not provide an explanation for the mechanism behind how gravity actually works.

Q: How did Einstein's general theory of relativity explain gravity?

According to Einstein, gravity is the result of the curvature of space. Objects like the Sun and Earth create valleys in the fabric of space, causing other objects to move along curved paths or orbit them.

Q: How did Einstein's theory differ from Newton's understanding of gravity?

While Newton provided an equation for gravity's effects, he admitted he did not know how gravity operates. In contrast, Einstein's general theory of relativity provided an explanation for the mechanism of gravity as the curvature of space.

Summary & Key Takeaways

  • Einstein set out to understand how gravity works and questioned the traditional understanding of Isaac Newton's laws of gravity.

  • Newton's laws provided an equation for gravity but did not explain the mechanism behind its operation.

  • Einstein developed the general theory of relativity, which described gravity as the curvature of the fabric of space, with objects like the Sun and Earth creating valleys that cause other objects to orbit them.

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