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PBS Space Time

Season 2018 · Episode 5

What is Energy?

0.015mFebruary 14, 2018

Energy is the most powerful and useful concept in all of physics, but what exactly is it?

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Episode 1What Do Stars Sound Like?
Episode 2Horizon Radiation
Episode 3The End of the Habitable Zone
Episode 4Kronos: Devourer Of Worlds
Episode 5What is Energy?
Episode 6The Death of the Sun
Episode 7The Trebuchet Challenge
Episode 8Should Space be Privatized?

Episode 9

Hawking Radiation

Episode 10Scientists Have Detected the First Stars

Episode 11The Andromeda-Milky Way Collision

Episode 12The Unruh Effect

Episode 13Physics of Life

Episode 14Using Stars to See Gravitational Waves

Episode 15Black Hole Swarms

Episode 16The Star at the End of Time

Episode 17How Gaia Changed Astronomy Forever

Episode 18Noether's Theorem and The Symmetries of Reality

Episode 19Why Quantum Information is Never Destroyed

Episode 20What Survives Inside A Black Hole?

Episode 21The Black Hole Information Paradox

Episode 22How Asteroid Mining Will Save Earth

Episode 23Will A New Neutrino Change The Standard Model?

Episode 24Quantum Invariance & The Origin of The Standard Model

Episode 25The Misunderstood Nature of Entropy

Episode 26Reversing Entropy with Maxwell's Demon

Episode 27How Close To The Sun Can Humanity Get?

Episode 28Quantum Theory's Most Incredible Prediction

Episode 29How Will the Universe End?

Episode 30Is There Life on Mars?

Episode 31The Black Hole Entropy Enigma

Episode 32How Much Information is in the Universe?

Episode 33Quantum Gravity and the Hardest Problem in Physics

Episode 34How to Detect Extra Dimensions

Episode 35Computing a Universe Simulation

Episode 36What are the Strings in String Theory?

Episode 37Will We Ever Find Alien Life?

Episode 38Are Virtual Particles A New Layer of Reality?

Episode 39Why String Theory is Right

Episode 40Supersymmetric Particle Found?

Episode 41'Oumuamua Is Not Alien

Episode 42Did Life on Earth Come from Space?

Episode 43Quantum Physics in a Mirror Universe

Episode 44Why String Theory is Wrong