{"product_id":"jollys-bulb-and-gauge","title":"Jolly's Bulb and Gauge","description":"Palm-sized, hollow metallic ball with a manometer connected to it for demonstrating change of pressure in a closed volume of air when heated or cooled (Gay-Lussac law). Immersing the ball in a water bath at a specific temperature allows the relationship between pressure and temperature of the enclosed air to be investigated in order to demonstrate the behaviour of an ideal gas.\u003cbr\u003eHollow ball: 60 mm diam.\u003cbr\u003eManometer: 840 - 1240 hPa","brand":"3B Scientific","offers":[{"title":"Default Title","offer_id":49419131093269,"sku":"3BS1012870","price":423.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/U10710_01_Jollys-Bulb-and-Gauge.jpg?v=1761028348","url":"https:\/\/unitedsupplycorp.com\/products\/jollys-bulb-and-gauge","provider":"United Supply Corp.","version":"1.0","type":"link"}