{"product_id":"tantalus-cup-demonstration","title":"Tantalus Cup Demonstration","description":"A Tantalus cup is a glass cup with a U-tube attached. When water reaches the top of the inverted U-tube, a siphon action begins which drains the water until the end of the U-tube is exposed. When the cup is filled with water, the water is forced up the inverted U-tube so that equilibrium is maintained in the cup. As the water level reaches the top of the U-tube it begins to fall through the siphon. As the water falls, it creates a vacuum which causes more water to be forced into the tube.","brand":"GSC International","offers":[{"title":"Default Title","offer_id":49507451666709,"sku":"GSC2001","price":34.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/2001.jpg?v=1761838095","url":"https:\/\/unitedsupplycorp.com\/products\/tantalus-cup-demonstration","provider":"United Supply Corp.","version":"1.0","type":"link"}