People have suspected that Earth rotates for thousands of years, but how did we first prove it?
How We Proved Earth Rotates Using a Giant Swinging Ball
Checkout these cool gadgets...
Related Posts
Full Tour Of The Space Station in HD
The Race to Sequence the Human Genome
Most hurricanes that hit the US come from the same exact spot in the world
How Much the Earth’s Vegetation Fades Away in a Year
How Ocean Currents Work (and How We Are Breaking Them)
