What was Otto von Guericke famous for?
A politician, physicist, engineer, and natural philosopher, von Guericke invented the world’s first air pump in 1650. By performing and interpreting some pioneering vacuum experiments, he made important contributions to the basic principles of the physics of fluids and gases.
Who performed the first experiment which dealing with the pressure?
Guericke demonstrated the force of air pressure with dramatic experiments. In 1657, he machined two 20-inch diameter hemispheres and pumped all the air out of them, locking them together with a vacuum seal.
What experiment did Otto von Guericke perform in front of Emperor 111?
In 1654, in a famous series of experiments that were performed before Emperor Ferdinand III at Regensburg, Guericke placed two copper bowls (Magdeburg hemispheres) together to form a hollow sphere about 35.5 cm (14 inches) in diameter.
Who invented the 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 did the Magdeburg experiment demonstrate about air pressure?
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 the Magdeburg hemispheres work?
The Magdeburg hemispheres are two metal cups that fit together. If most of the air is removed from inside them using a vacuum pump, it is almost impossible to pull them apart again. The pressure of the atmosphere acting on their outside surface pushes them tightly together.
What are the Magdeburg hemispheres and how do they work?
Magdeburg hemispheres are two half-spheres of equal size. Placing them together traps air between them. This air is merely trapped, and not compressed, so the pressure inside is the same as the pressure of the atmosphere outside the spheres. That is to say, the air is pushing equally strongly inside as it is outside.
Are there 4 hemispheres?
Powered by. Any circle drawn around the Earth divides it into two equal halves called hemispheres. There are generally considered to be four hemispheres: Northern, Southern, Eastern, and Western. The Equator, or line of 0 degrees latitude, divides the Earth into the Northern and Southern hemispheres.
Where do all 4 hemispheres meet?
Kiribati consists of 32 atolls and one solitary island (Banaba), extending into the eastern and western hemispheres, as well as the northern and southern hemispheres. It is the only country that is situated within all four hemispheres.