{"product_id":"nsi-smithsonian-perpetual-motion-machine","title":"NSI Smithsonian Perpetual Motion Machine","description":"\u003cp\u003eCurious kids learn about properties of physics and the capabilities of electromagnets by building their own perpetual motion machine powered by an invisible magnetic field. Includes a color poster and full instructions.\u003c\/p\u003e","brand":"Toysmith","offers":[{"title":"Default Title","offer_id":47151576187036,"sku":"WBTOYB0CZ9CQ8SJ","price":28.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/9904\/0668\/files\/71PyuVoUm7L.jpg?v=1783070584","url":"https:\/\/toytooth.com\/products\/nsi-smithsonian-perpetual-motion-machine","provider":"Toytooth","version":"1.0","type":"link"}