RVFM Magdeburg Pressure Disks
Description
Magdeburg-Pressure-Disks-RVFM-PH12184-P-A-practical-vacuum-pressure-demonstration-set-consisting-of-two-plastic-10cm-diameter-hemispheres-P-P-Each-hemisphere-has-a-wooden-handle-firmly-attached-to-it-One-of-the-hemispheres-has-a-raised-edge-to-hold-a-rubber-seal-while-the-other-hemisphere-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-Get-2-students-to-pull-then-open-the-stopcock
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