Bell in vacuum jar sound physics demonstration demo water boil air pressure New

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Seller: changbio (17,031) 98.6%, Location: Fremont, California, Ships to: Worldwide, Item: 383178964377 Bell Jar Vacuum Suction Unit * Vacuum suction base * Polycarbonate (PC) bell jar * Electric bell (2 AA battery required, battery not included) * Sound barrier sponge The bell jar can be used for the following demonstrations: (1) Bell-in-a-vacuum-jar sound experiment. (2) Boiling water in a vacuum. (3) Air pressure. (4) Cool air compression. (5) Water fountain. Bell jar dimensions: 5 1/2" (ID) x 8" Sold by Chang Bioscience Inc. Ship in 1-3 days after receiving payment. Check out my other items! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items. Condition: New, Brand: CB, MPN: CM1202016

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