Why Does Everything in the Universe Spin?

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Liza
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Why is everything in the universe spinning? From the smallest atoms to the largest galaxies, nothing in the cosmos is ever truly still.
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In this deep-dive exploration of cosmic rotation, Bedtime Science journeys 13.8 billion years into the past to uncover the "The Story of Spin." We explore the fundamental physics of angular momentum, the violent birth of our own Earth, and the mind-bending way rotating black holes warp the fabric of space-time itself.

If you've ever wondered why planets don't just sit still or how a figure skater’s spin explains the birth of a star, this journey into astrophysics is for you.

In this episode, we explore:
Conservation of Angular Momentum: The simple law of physics that dictates the shape of our universe.
The Cosmic Web: How massive "rivers of gas" feed the rotation of entire galaxies.
Earth’s Violent Origin: The massive collision with "Theia" that set our world in motion.
Extreme Physics: The terrifying speed of Pulsars and the Frame-Dragging effect of Black Holes.
The Dark Matter Secret: How Vera Rubin used rotation curves to prove the existence of an invisible ocean of matter.

TIMESTAMPS:
0:00 The Sickening Truth: Nothing is Stationary
00:32 The Story of Spin: 14 Billion Years Ago
02:34 The Conservation of Angular Momentum
05:26 Protoplanetary Discs: Where Planets are Born
09:53 The Cosmic Web: Rivers of Gas & Dark Matter
12:18 Why Does Earth Spin? (The Theia Collision)
14:15 Why the Earth is Slowing Down Right Now
17:28 Pulsars: The Fastest Spinners in the Cosmos
19:00 Rotating Black Holes & Frame-Dragging
22:36 The Milky Way’s Galactic Year
23:48 Vera Rubin & The Dark Matter Mystery
34:18 Retrograde Rebels: Why Venus Spins Backward
41:42 Earth's Dynamo: How Rotation Protects Life
57:10 Artificial Gravity & The Future of Space Travel
1:12:00 The End of Spin: Hawking Radiation

#spacescience #astrophysics #cosmology #bedtimescience #universe #physics #sciencefacts #astronomy
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