That is Nasa’s house power facility close Cleveland, Ohio, and it’s the world’s greatest vacuum chamber it is used to scan spacecraft in the conditions of outer house and It does that by using pumping out the 30 tons of air on this chamber until they may be about 2 grams left This I’ve acquired an eccentric construction. Which is a component of this historical past it used to be constructed within the Sixties as a nuclear scan facility to experiment nuclear Propulsion methods and That supposed that they developed it out of our [mininum] to make the radiation less difficult to take care of aluminium just isn’t the exceptional factor the strongest material to build a vacuum chamber out of so they developed out a Concrete skin which is part radiation protecting and section an external strain vessel so this factor can take The drive that’s present on the outside when it can be pumped out to the conditions of outer space Galileo’s test used to be easy he took a heavy [object] and the sunshine one And drop them at the same time to peer which fell quickest Now in this case the feathers fell to the bottom at a slower rate [than] the bowling ball considering that of air resistance So to be able to see the actual nature of gravity we have to cast off the air It takes three hours to pump out the 800 thousand cubic ft of air from the chamber We drop to millet or in the final half-hour, however as soon as it is complete.There may be a near-perfect vacuum inside of 6104 manual 10 percent [orbit] Station One go for [Drive] PCB 30-1 strain set point at 240 PSI. We are go for drop and 9 eight seven six five four cameras on two one release Yeah, look at that. They came down precisely this precisely, no longer gonna silent precisely only a feathers. Don’t move nothing look at that. That is just splendid Isaac Newton would say that the ball and the feather fall seeing that there is a force pulling them down gravity What einstein imagined the scene very otherwise? The happiest notion of his existence was once this: the intent the bowling ball feather fall together is due to the fact they are not…..Falling they’re standing still there is not any drive performing on them at all He reasoned that when you could not see the back gravity There’d be no manner of realizing that the ball and the feathers had been being accelerated closer to the Earth So he concluded: They weren’t.