StarTalk Radio The “Bang” in Big Bang with Charles Liu
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Feb 4, 2025 Astrophysicist Charles Liu joins Neil deGrasse Tyson and Paul Mecurio to tackle cosmic mysteries. They dive into whether slowing time can increase mass and discuss the nature of particles during the Big Bang. Liu humorously explores how cosmic inflation parallels economic inflation, and they highlight the significance of stellar generations in understanding our universe. The trio also debates scientific truths, combining serious science with relatable anecdotes, making the cosmos both enlightening and entertaining.
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Gravitational Waves as Probes
- Gravitational waves, like ripples in a pond, reveal information about the universe.
- By studying these waves, we can learn about spacetime, its structure, and the objects they interact with.
Gravitons and the Speed of Gravity
- Gravitational waves, like light waves, have a speed limit, suggesting the existence of gravitons.
- These particles, though not yet detected, offer insights into the speed of gravity and other information in the universe.
Wave-Particle Duality of Gravity
- Like light, gravity exhibits wave-particle duality.
- Gravitational waves have a theoretical particle counterpart, the graviton, analogous to light's photon.