Who invented Magdeburg hemispheres?
Otto von Guericke
The Magdeburg hemispheres were invented by German scientist and mayor of Magdeburg, Otto von Guericke, to demonstrate the air pump that he had invented, and the concept of atmospheric pressure.
What is Magdeburg hemisphere experiment?
The Magdeburg Hemispheres is a classic physics experiment that demonstrates the incredible pressure the atmosphere around us exerts on our bodies and everything else. The apparatus of the experiment consist of two brass hemispheres that fit together to form an air-tight seal.
How do you use a Magdeburg hemisphere?
Procedure:
- Place the two Magdeburg hemispheres together tightly and close off the valve.
- Attach one spring scale to each hemisphere, then use the spring scales to pull the hemispheres apart.As you pull, the scales will show the small force you use to pull them apart.
How did Otto von Guericke change the world?
After surviving the worst massacre of the Thirty Years’ War, Otto von Guericke made several historic scientific discoveries. Self-funded, he invented the vacuum pump, pioneered the concept of the absolute vacuum of space, measured the weight of air and used air pressure to make weather forecasts.
How many horses were there on each side of the two hemispheres?
von Guericke usually used eight horses on each side and hemispheres of 20 in. in diameter. The shape of the chambers is, of course, immaterial.
Why did Otto von Guericke invent the vacuum pump?
Otto von Guericke was a German scientist born in the town of Magdeburg, Germany. He is best remembered for founding the physics of vacuums. In 1650, Otto invented a vacuum pump that was designed to pull air out of whatever vessel to which it was connected.
Why do Magdeburg hemispheres stick to each other?
So how do the spheres stay together? Simply put: atmospheric pressure! A suction cup gets its sticking force by the same action as the Magdeburg hemispheres: when one pushes the cup against a smooth wall, one forces the air out of the cup, allowing atmospheric pressure to hold it to the wall.