# Videos

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### Math’s Famous Map Problem: The Four-Color Theorem

David Richeson discusses the history and significance of the four color theorem.

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### P vs. NP – The Greatest Unsolved Problem in Computer Science

### Math’s Famous Map Problem: The Four-Color Theorem

### Could One Physics Theory Unlock the Mysteries of the Brain?

### The Biggest Project in Modern Mathematics

### How NASA’s Webb Telescope Will Transform Our Place in the Universe

### The Standard Model: The Most Successful Scientific Theory Ever

### Quantum Computers, Explained With Quantum Physics

### Black Hole Jets: Unraveling One of the Biggest Mysteries in the Universe

### Iceland Is a Portal to Mars

### Why COVID-19 Models Don’t Predict the Future

## Explore All Videos

### P vs. NP – The Greatest Unsolved Problem in Computer Science

Is it possible to invent a computer that computes anything in a flash? Or could some problems stump even the most powerful of computers? Computational complexity theorists study these questions and others in the hopes of determining the limits of a computer’s powers.

### How AI Learns to ‘See’

Alexei Efros describes how he combines massive online data sets with machine learning algorithms to understand, model and re-create the visual world.

### Unlocking the Secrets of Our Circadian Rhythms

The trailblazing work of the biochemist Carrie Partch has revealed crucial details about how clock proteins in our cells produce our daily circadian rhythm.

### How to Build a Telescope to See the Early Universe

Cynthia Chiang describes the experiments she hopes will illuminate the early universe.

### When Computers Write Proofs, What’s the Point of Mathematicians?

Andrew Granville muses on how artificial intelligence could profoundly change math.

### Math’s Famous Map Problem: The Four-Color Theorem

David Richeson discusses the history and significance of the four color theorem.

### The Cryptographer Working to Protect Computations

Kalai discusses the meaning of cryptography and how essential it is to our daily lives.

### A Bet Against Quantum Gravity

Oppenheim describes why he thinks gravity can’t be squeezed into the same quantum box as the other fundamental forces — and what he’s proposing as an alternative.

### Can a New Law of Physics Explain a Black Hole Paradox?

Leonard Susskind and collaborators set out to understand why black hole interiors grow forever. They ended up proposing a new law of physics.