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The acceleration of the expansion of the universe is one of the fundamental questions in cosmology.
Scientists believe that dark energy is driving and accelerating the expansion; however, there is a discrepancy between the predicted amount of dark energy in the universe and our theoretical calculations based on the properties of fundamental particles.
To get to the bottom of this, today's guest, Professor Claudia de Rham, proposed a new theory of "massive gravity" that could solve this āimpossibleā riddle.
Claudia de Rham is a Swiss theoretical physicist at Imperial College London. She is known for her work at the intersection of gravity, cosmology, and particle physics. She won the 2020 Blavatnik Young Scientist Award for reviving the theory of massive gravity and has made significant contributions to understanding dark energy, dark matter, and gravity. Her research focuses on modified theories of gravity, including massive gravity and Galileon gravity.
Join us as we explore the true nature of gravity and the beauty of falling!
Key Takeaways:
- 00:00:00 Intro
- 00:01:19 Mass of the graviton
- 00:08:20 Judging a book by its cover
- 00:15:20 Could AI experience the joy of falling?
- 00:20:07 The speed of gravity
- 00:22:55 How would a breathing mode manifest itself?
- 00:34:08 Extra dimensions
- 00:40:00 Do we need a quantum theory of gravity?
- 00:45:00 Nothing happens at the Planck length
- 00:50:27 Quantum nature of gravity
- 00:55:34 Outro
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Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known.
Make sure to subscribe so you never miss an episode!
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