This is just neat. Anyone who’s taken a physics class knows that a bowling ball and a feather are supposed to fall at the same speed due to the effects of gravity, but air resistance prevents that from happening in real life.
In a neat video from BBC Two, Physicist Brian Cox went to NASA’s Space Power Facility in Ohio and they conducted the same experiment in a vacuum chamber (where air resistance is no longer a factor).
You know how the experiment will end, but it’s still really cool to see it in action:
(via io9. Thanks to William for the link)