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Pair of two hollow cups is term as​
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Pair of two hollow cups is term as​

User Adarsh Wase
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Magdeburg hemispheres
User Jackalope
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Answer:

Magdeburg hemispheres are a pair of large copper hemispheres, with mating rims.

Step-by-step explanation:

They were used to demonstrate the power of atmospheric pressure. When the rims were sealed with grease and the air was pumped out, the sphere contained a vacuum and could not be pulled apart by teams of horses.

User Kristin
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