Who invented 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.
Are there 4 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.
Why was the air pump used?
Examples include a bicycle pump, pumps that are used to aerate an aquarium or a pond via an airstone; a gas compressor used to power a pneumatic tool, air horn or pipe organ; a bellows used to encourage a fire; a vacuum cleaner and a vacuum pump….References.
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What declaration by Aristotle did von Guericke help prove wrong?
Even Aristotle argued against its existence. When he began his research, von Guericke studied the role of air in respiration and combustion and attempted to disprove the idea that a vacuum could not exist in nature.
What did von Guericke do?
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.
What did Otto von Guericke invent that produce static electricity?
electric generator
In 1663 Otto van Guericke invented the first electric generator, which produced static electricity by applying friction in the machine. The generator was made of a large sulfur ball cast inside a glass globe, mounted on a shaft.
How did the first air pump work?
The first rudimentary air pump—a sort of syringe—was developed c. 1650 by Otto von Guericke (1602-1686). He used it in his celebrated “Madgeburg hemispheres” experiment to demonstrate that two metal hemispheres, when joined together and evacuated, required the force of at least sixteen horses to be pulled apart.
Who are the children of Margarethe von Guericke?
Before Margarethe’s death in 1645, they had three children together: Anna Catherine, Hans Otto, and Jacob Christopher. Anna Catherine and Jacob Christopher both died in infancy. Von Guericke later remarried to Dorotha Lentke in 1652.
Who was the emperor when Guericke invented the vacuum pump?
In 1654, Guericke demonstrated his vacuum pumps to Emperor Ferdinand III, who was thoroughly impressed. The emperor asked Guericke to repeat his demonstrations for university professors, who were likewise impressed. Guericke showed them how his pumps allowed him to find the weight of air in a vessel.
What was von Guericke inspired by in the theory of relativity?
Inspired by Copernican cosmology and the idea of vast, endless, empty space where light could propagate, bodies could move about unhindered, and sound cannot be detected, von Guericke set about replicating this phenomena on Earth.