{"product_id":"coin-and-feather-with-plastic-tube-and-valve-case-of-10","title":"Coin and Feather with Plastic Tube and Valve, Case of 10","description":"This experiment demonstrates the fact that objects of different masses fall at the same rate in a vacuum. The plastic cylinder has rubber stopper closures on both ends, with one end having a hose connection that is used to evacuate air. When air in the tube is pumped out via a vacuum pump (not included), the coin and feather will fall simultaneously because there is nothing causing resistance in the tube.\u003cbr\u003e\u003cbr\u003eSold in a case of 10 Coin and Feather Apparatuses.","brand":"GSC International","offers":[{"title":"Default Title","offer_id":49956256743701,"sku":"GSC4-7801-CS","price":543.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/4-7801-cs-photoroom.jpg?v=1780892747","url":"https:\/\/unitedsupplycorp.com\/products\/coin-and-feather-with-plastic-tube-and-valve-case-of-10","provider":"United Supply Corp.","version":"1.0","type":"link"}