Crash Course Pods: The Universe Ep. 6: The Story of Dark Matter
Jul 3, 2024
Dr. Katie Mack and John Green delve into the mysterious realm of dark matter, discussing its gravitational properties and lack of interaction with visible light. They explore the impact of dark matter on the formation of galaxies and share insights on the challenges in detecting this elusive component of the universe.
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Electromagnetism in Daily Life
- Physical interactions, like touch and smell, are fundamentally electromagnetic.
- Electrons repelling each other prevent our hands from passing through objects.
Neutrinos: Ghostly Particles
- Neutrinos, neutral particles, exemplify matter that doesn't interact electromagnetically.
- Trillions pass through us every second undetected, showcasing their ghostly nature.
Detecting Neutrinos
- Neutrinos are detected through rare weak force interactions in large, shielded water tanks.
- This method allows for creating neutrino images of the sun, showing nuclear interactions.