Free fall of bowling ball and a feather in world’s biggest vacuum chamber
Brian Cox visits NASA’s Space Power Facility in Cleveland, Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
World’s biggest Vacuum chamber, built in 1960s.
Experiment: Take a heavy object and a light one and drop them at the same time.
Which one will fall fastest, bowling ball or the feather ?
Bowling ball will fall first because of air resistance. What if there is no air ?
In order to see the nature of the gravity we need to remove the air.
It takes 3 hours to remove the air…
Programme website: http://www.bbc.co.uk/programmes/p0276q28