The Collatz Conjecture is easy enough for almost anyone to understand but notoriously difficult to solve.

Why are bicycles stable? The most common answer is gyroscopic effects, but this is not right.

Lenz's Law states that the direction of the induced current will oppose the change in flux that created it. Here's how that looks in practice. For more videos like this, subscribe to @veritasium.

The number 37 is on your mind more than you think. Head to https://brilliant.org/veritasium to start your free 30-day trial and get 20% off an annual premium subscription. Huge thanks to Tom Magliery for sharing his 37 collection with us. Support http://thirty-seven.org by sharing your own 37 sightings to tom@thirty-seven.org! Thanks to Dr. Todd...