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Ghost Particles Are Exposing Hidden Black Holes. They Just Won a Nobel Prize.
Season 12
Episode 2
17:28
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PBS Space Time
How the Quantum Eraser Rewrites the Past
Causality is meant to move in one direction: forward. But the Quantum Eraser experiment seems to reverse causality. How and why can this happen and what are the implications of this experiment on how we understand Quantum Mechanics and our greater universe?
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14:28
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples?
13:17
The hubble constant--the rate of expansion of our universe--has consumed astronomers.
13:50
The foundations of quantum theory rests on its symmetries.
13:08
Astronomers are the worst at naming things. Dark energy AND dark matter?
12:18
What you think is a perfect reflection might be universe that is fundamentally different.
13:43
Let me tell you a story about virtual particles. It may or may not be true.
