Question

who invented a pump to extract air out of a vessel ​

Answer 1

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Otto von Guericke

Otto von Guericke invented a pump to extract air out of a vessel

Answer 2

hey dear

In 1650 von Guericke invented the vacuum pump. His model consisting of a piston and an air gun cylinder with two-way flaps designed to pull air out of whatever vessel it was connected to, and used it to investigate the properties of the vacuum in many experiments.

Explanation:

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