There are endless documentaries that explain the clever technology that allowed World War I fighter planes to fire their machine guns through their propellers without hitting the blades. But The Slow Mo Guys use their high-speed cameras so you can finally see exactly what’s happening.
It was 100 years ago this very night that something miraculous happened along the Western Front. After months of bitter fighting, soldiers on both sides gathered in no-man's-land in a spontaneous show of peace and goodwill. Here's what happened on that historic day — and why it marked the end of an era.