{"product_id":"coin-and-feather-with-plastic-tube-and-valve","title":"Coin and Feather with Plastic Tube and Valve","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.","brand":"GSC International","offers":[{"title":"Default Title","offer_id":49956256678165,"sku":"GSC4-7801","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/4-7801_507e50d8-2ed2-46d4-8857-5a79e3b5ce66.jpg?v=1780892743","url":"https:\/\/unitedsupplycorp.com\/products\/coin-and-feather-with-plastic-tube-and-valve","provider":"United Supply Corp.","version":"1.0","type":"link"}