Mini Hot Model Cylinder Piston Motor DIY Educational Toy

Store Home | Home & Garden | Sporting Goods | Crafts | Clothing, Shoes & Accessories | Pet Supplies | Others Mini Hot Model Cylinder Piston Motor DIY Educational Toy Description: A engine is a heat engine that operated by cyclic compression and expansion of air or other gas at different temperatures, such that there will be a net conversion of heat energy to mechanical work. Hot air engine motor model kit physics teaching aids educational toys Burnning the alcohol lamp for a while, the expansion of air will work as a medium to run the pistons and flywheel, then the expanding air will be cooled in cold chamber. As this process will be repeatedly circulating, the flywheel will continuously work. The hotter the tube gets, the faster the flywheel goes. Very interesting! Great for cultivating students’ interest in physics, more intuitive and easy to understand how heat engergy is converted into mechanical work. Specification: Item name: engine cylinder piston Materials: Metal + glass Size Chart: Hot cylinder piston: Diameter 1.5cm/0.59inch, connecting rod length 4.5cm/1.77inch, total length 10.5cm/4.13inch; Cold cylinder piston: Diameter 1.5cm/0.59inch, Glass tube length 2.8cm/1.1inch, connecting rod length 6.5cm/2.56inch; Flared end piston: Diameter 1.5cm/0.59inch, cylinder length 4cm/1.57inch, connecting rod length 5.8cm/2.28inch. Package Includes: 1 Piece Engine Cylinder Piston Note: Color might be slightly different due to the color calibration of each individual . Please allow slightly measuring deviation due to manual measurement. Payment Shipping Returns If you are bidding or ordering more than one item, the items will be combined into one order automatically thus you can pay altogether. If you want not to combine, please buy one and immediately pay one separately. Please pay what you win in 7 days. Unpaid Dispute will be automatically open if payment is not received after 7 days. If you pay the bill after received unpaid dispute, please email us to close the unpaid dispute. Because the unpaid dispute will not be closed automatically, and we may ignore it. The buyer is responsible for any applicable import duties and local taxes. Please verify with your customs before making your purchase. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses. We are committed to give you the best customer service possible. If for any reason you are unsatisfied with a purchase, please contact us and we’ll assist you with a prompt solution. Please let us work on the issues. We’d like to settle any problem in a friendly manner. Please do not open a case on eBay or PayPal, or leave any negative or neutral feedbacks directly! We always reply to messages within 2 business days (off-duty at weekend). Due to the difference of time zone between Hong Kong and your location, sometimes the answer will be delayed. If you do not get a response from us after 2 business days, please check your junk or spam mailbox. Unsatisfied product can be returned within 30 days from the delivery date . We can offer a full refund or exchange, but we are not responsible for return shipping cost. Please contact us to get a RMA number before sending out your return. Feedback: 1. Since your feedback is very important to our business’s development, we sincerely invite you to leave positive feedback with four 5-Detailed Selling Rating (DSR) to us basing on your satisfaction with our commodity and service. It’s just take you 1 minute. 2. Unfortunately, If you are planning to give us a neutral/negative feedback because of your bad buying experience with us, please contact us at any time so as to clear up your discontent and resolve the problem. Featured Products People always bought together with