{"product_id":"windbots-6-in-1-wind-powered-machine-kit-0814743016934","title":"Windbots: 6-In-1 Wind-Powered Machine Kit","description":"Build six awesome bots that move without any batteries or electricity. The secret behind these fascinating machines is one of the oldest power sources in the world: wind! A full-color manual guides you in assembling six models one at a time from over 130 pieces. Build a big-wheel tricycle, quadruped, soaring machine, drilling monster, walking robot, and even a wind-powered yacht. To make them all go, the kit also includes the pieces to build a hand-powered wind generator. As you build and experiment, you will learn about how gears transmit power and torque. Also learn about wind as a power-generating technology -- past, present, and future. Easy, snap-together assembly requires no glue Step-by-step, illustrated instructions 6-in-1 engineering kit: build six wind-powered models and a handheld wind generator. Start cranking the generator and watch them go! Learn about gear ratios and wind-power technology. No batteries or electricity required\u003cbr\u003e","brand":"Thames \u0026 Kosmos","offers":[{"title":"Default Title","offer_id":51253964898578,"sku":"0814743016934","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_dd590fd5-e885-4465-acea-36c3f3f57ba1.jpg?v=1746301318","url":"https:\/\/surprise-castle.myshopify.com\/products\/windbots-6-in-1-wind-powered-machine-kit-0814743016934","provider":"Surprise Castle","version":"1.0","type":"link"}