Question

Can u seperate two hemispheres if all the air is sucked out from them.explain

Answer 1

Otto Von Guericke was a German scientist who lived in the 17th century. He had invented a pump which he could use to suck out the air from a closed container. He conducted an experiment in which he joined together two hallow metal hemispheres of diameter 51cm to from a sphere. Using the pump he removed the air from inside this hollow sphere. Then he tried very hard to pull the two hemispheres apart but couldn’t do so due to atmospheric pressure. Even when he used eight horses to pull at each of the hemispheres, he could not separate them. The strength of so many horses was found wanting when compared to atmospheric pressure.