Here is perhaps the perfect example, brought to us by physicist Brian Cox. He checked out NASA's Space Simulation Chamber located at the Space Power Facility in Ohio. With a volume of 22,653 cubic meters, it's the largest vacuum chamber in the world.
In this hypnotizing clip from the BBC, Cox drops a bowling ball and a feather together, first in normal conditions, and then after virtually all the air has been sucked out of the chamber. We know what happens, but that doesn't stop it from being awesome, especially with the team's ecstatic faces.
Programme website: http://www.bbc.co.uk/programmes/p0276q28
Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.