{"product_id":"standing-blown-glass-light-mill","title":"Standing Blown Glass Light Mill","description":"\u003cp\u003eA simple demonstration of physics that never seems to lose its magic. Handmade in Germany, this glass light mill, or radiometer, spins when placed in bright sunlight or near a strong light source. Set on an elegant blown glass pedestal, it makes a fascinating addition to a desk, bookshelf, or windowsill—an object that invites curiosity with every turn.\u003c\/p\u003e\n\u003cp\u003eInvented in the 19th century, the radiometer contains four lightweight vanes with black and reflective sides inside a partial vacuum. As light warms the dark surfaces more than the reflective ones, the remaining gas molecules transfer energy unevenly, causing the vanes to rotate.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Gardenheir","offers":[{"title":"Default Title","offer_id":52030102372673,"sku":"STANDLIGHTMILL-LG1004","price":98.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/5824\/1345\/files\/German_Standing_Glass_Light_Mill_4291.jpg?v=1786717135","url":"https:\/\/gardenheir.com\/products\/standing-blown-glass-light-mill","provider":"Gardenheir","version":"1.0","type":"link"}