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805 Magdeburg Hemisphere, Rubber
Magdeburg Hemisphere A classic in the field of teaching about vacuums! In a modern application of the famous17th-Century experiment, you can demonstrate the force of air pressure without a vacuum pump. When the two cups are pressed together, the air is evacuated and a vacuum is created, separating the discs will be an interesting challenge for your students. Made from rubber 3-1/4" diameter(set of 2). With instructions.(3-1/4" x 3-1/4" x1/4"; 0.5Ibs).
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806 Magdeburg Hemisphere, Cast Iron
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