Youtuber Seals Himself in an Dangerous Air-Tight Jar Just to Prove a Point

Just His Bike

He was able to disprove the Flat Earth theory just by using his bike. Kurtis was able to make sundials with shadows from his bike that, together, depicted the curvature of the Earth. If that's not proof, we're not sure what is! It wasn't even that hard, too. This next project, however, wasn't going to be quite so easy...

The More You Know

Commercial flights were allowed to fly any course to their destination and would often detour over points of interest. This ended in 1956 when two planes crashed mid-flight over the Grand Canyon.
Sharks "smell in stereo."
Tennis was originally played with bare hands.
The Guinness brewery supported all of it's employees who chose to fight in WW1. They were paid half of their wages while away, and their jobs were guaranteed upon their return. The brewery also sent them care packages containing chocolate and condensed milk.

Post originally appeared on Upbeat News.