In this very cool video, physicist Richard Feynman explains how a train is able to stay on the tracks without derailing. It’s very interesting and intriguing and something I’m sure many of us have never even given a second thought to.
This is supposedly the largest bomb ever detonated. According to the notes on the video it was set off in the Arctic Sea and was about 57 megatons.
Amazing blind kid can “see” using echolocation through clicks he makes.
Police camera catches a meteor in the skies over Edmonton, Canada.