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Eisco Magdeburg Hemisphere

Eisco-75mm-Brass-Magdeburg-Hemisphere-Set-Eisco-PH0172-P-A-practical-vacuum-and-atmospheric-pressure-demonstration-set-consisting-of-two-75mm-diameter-brass-hemispheres-P-P-Each-hemisphere-has-a-handle-firmly-attached-to-it-One-of-the-hemispheres-has-a-stopcock-for-attaching-to-vacuum-tubing-When-the-hemispheres-are-pushed-together-and-evacuated-using-a-vacuum-pump-they-are-hard-to-pull-apart-P-P-Get-2-students-to-pull-then-open-the-stopcock-to-let-air-in-and-the-hemispheres-will-se

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