Did you know? oto von Guericke, a German scientist of the 17 century, invented a pump toextract air out of a vessel With the help of this pump. he demonstrateddramatically the force of the air pressure. He joined two hollow metallebers of 51 cm diameter each and pumped out of them. Then heemployed the horses on each bem bere to pull them apart11.2015peat is the one of dr pressure that the beers could not be pulled apart

Did you know? oto von Guericke, a German scientist of the 17 century

1.	Did you know? oto von Guericke, a German scientist of the 17 century, invented a pump toextract air out of a vessel With the help of this pump. he demonstrateddramatically the force of the air pressure. He joined two hollow metallebers of 51 cm diameter each and pumped out of them. Then heemployed the horses on each bem bere to pull them apart11.2015peat is the one of dr pressure that the beers could not be pulled apart
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