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Gravitational Waves: Einstein Was Right! Video Lecture | Science & Technology for UPSC CSE
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FAQs on Gravitational Waves: Einstein Was Right! Video Lecture - Science & Technology for UPSC CSE
| 1. What are gravitational waves? |  |
Ans. Gravitational waves are ripples in the fabric of spacetime caused by the acceleration of massive objects. They were predicted by Albert Einstein's theory of general relativity and were recently observed for the first time in 2015.
| 2. How do gravitational waves confirm Einstein's theory? | |
Ans. Gravitational waves confirm Einstein's theory of general relativity by providing direct evidence of the existence of these waves, as predicted by his equations. The detection of gravitational waves aligns with the key predictions of general relativity and further supports the understanding of gravity as the curvature of spacetime.
| 3. How were gravitational waves detected? | |
Ans. Gravitational waves were detected using an instrument called the Laser Interferometer Gravitational-Wave Observatory (LIGO). LIGO consists of two observatories, each with two perpendicular arms equipped with laser beams. When a gravitational wave passes through the observatory, it causes minute changes in the length of the arms, which are measured by the interference of the laser beams.
| 4. What does the detection of gravitational waves mean for science and research? | |
Ans. The detection of gravitational waves opens up an entirely new way of observing and studying the universe. It provides a new tool for astronomers to explore phenomena such as black holes, neutron stars, and the early moments of the universe. It also offers the potential for further validating and refining our understanding of gravity and the laws of physics.
| 5. How does the discovery of gravitational waves impact our daily lives? | |
Ans. While the discovery of gravitational waves may not have an immediate impact on our daily lives, it represents a significant advancement in our understanding of the universe. It contributes to the collective knowledge of humanity and pushes the boundaries of scientific progress. Additionally, scientific discoveries often have indirect applications and may lead to technological advancements in the future.
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Nov 23, 2024 Last updated |
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