{"product_id":"roller-coaster-engineer","title":"Roller Coaster Engineer","description":"\u003cp\u003eBuild and experiment with dozens of roller coaster models to make learning the physics of force, motion, and energy as fun as a day at the amusement park. Experiment by varying the weight of the cars and varying the slope, length, and direction of the track. Get a practical introduction to many physics principles including gravitation, potential energy, kinetic energy, free fall, projectile motion, friction, centripetal force, velocity, acceleration, and more. Ages 6+. 20 Experiments. Contains 330 pieces.\u003c\/p\u003e","brand":"Thames \u0026 Kosmos","offers":[{"title":"Default Title","offer_id":49267206422755,"sku":"TKM625417","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5956\/2723\/files\/tmp71x6V5gmxrL._AC_SX522.jpg?v=1781592347","url":"https:\/\/woodlands.learningexpress.com\/products\/roller-coaster-engineer","provider":"Learning Express Toys \u0026 Gifts - The Woodlands TX","version":"1.0","type":"link"}