Two objects have struck the earth with enough force to destroy a whole city. Each object, one in 1908 and again in 1947, struck regions of Siberia. Not one human being was hurt either time.

Over 8 years, this happened 284 times: "Cosmo" Kramer went through Jerry Seinfeld's apartment door.

When you crack a whip, it makes a loud noise because the tip is actually moving faster then the speed of sound!

AMAZING FACTS