Period

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Two boys trying to pull apart two Magdeburg hemispheres
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Two boys trying to pull apart two Magdeburg hemisp...

The two parts of a Magdeburg hemispheres
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The two parts of a Magdeburg hemispheres

The evacuating of a bell jar by means of a portable air pump in order to examine the effect on the creatures imprisoned in it
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The evacuating of a bell jar by means of a portabl...

Colvin'S hydraulic milking machine: corrugated rubber suction cups were placed over the teats
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Colvin'S hydraulic milking machine: corrugated rub...

A milking machine invented by Edward M
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A milking machine invented by Edward M

Hermann Sprengel's vacuum pump
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Hermann Sprengel's vacuum pump

Painting titled "An Experiment on a Bird in the Air Pump"
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Painting titled "An Experiment on a Bird in the Ai...

Demonstration that sound cannot travel in a vacuum.
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Demonstration that sound cannot travel in a vacuum...

Von Guericke's first air pump
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Von Guericke's first air pump

Otto von Guericke's improvement on Robert Boyle's air pump
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Otto von Guericke's improvement on Robert Boyle's ...

Otto von Guericke's air pump
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Otto von Guericke's air pump

Equilibrium and the movement of the air
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Equilibrium and the movement of the air

Milking parlour equipped with Thistle suction
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Milking parlour equipped with Thistle suction

Von Guericke's demonstration of the strength of a vacuum
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Von Guericke's demonstration of the strength of a ...

Mercury vacuum pump being used to evacuate light bulbs on commercial scale c1883
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Mercury vacuum pump being used to evacuate light b...