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When you lose weight where does it go?

Veritasium

What does it mean to lose weight? When you work out or eat less your overall size decreases. So where does this mass go?

Is there something faster than light?

The experiment that broke relativity. How an argument between Einstein and Bohr changed quantum mechanics forever.

The Insane Engineering of Fiber Optics

Why making glass fibers to send signals was almost impossible. Sponsored by Saily - 🌎 Get an exclusive 15% discount on Saily data plans! Download Saily app go to https://saily.com/veritasium Use code

We're trying something new...

Veritasium's mission has always been to get to the truth - to understand how and why things work the way they do. We love the variety of topics we're able to cover - from the real to the abstract - an

The Insane Real Engineering of the Nazi Enigma Machine

How did Bletchley Park's codebreakers crack the "unbreakable" enigma? Sponsored by Incogni - use code veritasium at https://incogni.com/veritasium to get an exclusive 60% off your annual subscription.

The Scariest Chart In Engineering

Why is the Smith Chart one of the scariest charts in electrical engineering? We printed the largest one in the world to explain how it works and why it's so terrifying (to engineers at least).

The Most Dangerous Escalator In Europe

In 2018 football fans were leaving a stadium in Rome. They boarded an escalator down to the metro. Suddenly the machine sprung a fault. Multiple safety systems were triggered. One after another. And t

A Physics Professor Bet Me $10,000 I'm Wrong...

A UCLA Physics Professor bet me $10,000 that my video (https://youtu.be/jyQwgBAaBag) about going downwind faster than the wind was wrong. Here's how we proved it...