Magdeburg Hemispheres - Cups
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Product Number: SB16578M Price: $8.30In Stock. Usually ships in 24-48 hours. |
PRODUCT DETAILS
Two rubber vacuum cups with handles can be used as a simple but effective demonstration of the great force of air pressure. When the edges are placed together and the cups compressed to expel the trapped air, they cannot be easily separated by a straight pull. Cups are approximately 3" in diameter.
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