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PBS Space Time

Planck's Constant and The Origin of Quantum Mechanics

Planck's Length is the length below which the concept of length loses its meaning. What exactly does that mean and what are the incredible implications this fact has upon our reality? To find out check out this episode of Space Time where Matt digs into the early history of quantum mechanics.

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Sound Waves from the Beginning of Time
12:48
Sound Waves from the Beginning of Time
Perpetual Motion From Negative Mass?
14:28
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples?
The Crisis in Cosmology
13:17
The hubble constant--the rate of expansion of our universe--has consumed astronomers.
Our Antimatter, Mirrored, Time-Reversed Universe
13:50
The foundations of quantum theory rests on its symmetries.
Are Dark Matter And Dark Energy The Same?
13:08
Astronomers are the worst at naming things. Dark energy AND dark matter?
Why String Theory is Wrong
15:07
Why String Theory is Wrong
Quantum Physics in a Mirror Universe
12:18
What you think is a perfect reflection might be universe that is fundamentally different.
Did Life on Earth Come from Space?
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'Oumuamua Is Not Aliens
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It’s never aliens … until it is. So let’s talk about ‘oumuamua.
Are Virtual Particles A New Layer of Reality?
13:43
Let me tell you a story about virtual particles. It may or may not be true.
Why String Theory is Right
13:37
Some see string theory as the one great hope for a theory of everything.
Supersymmetric Particle Found?
12:07
Supersymmetric Particle Found?
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