{"product_id":"hanging-blown-glass-light-mill","title":"Hanging 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. Encased in a hand-blown teardrop-shaped glass vessel, it brings gentle movement and quiet fascination to a sunny window, making a thoughtful gift for anyone with a curious mind.\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":52030041522497,"sku":"HANG-LG 1006 T, LG 2074","price":98.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/5824\/1345\/files\/German_Hanging_Glass_Light_Mill_4276.jpg?v=1786717096","url":"https:\/\/gardenheir.com\/products\/hanging-blown-glass-light-mill","provider":"Gardenheir","version":"1.0","type":"link"}