• ⚜EASY OPERATION- Placing the engine on top of a freshly made tea, coffee or boiled water,wait for 20 seconds,give the flywheels a gently turn, it will be smooth-running quietly and slowly for around 30 minutes. Power piston goes with faint sounds when the flywheels is rotating, which even quieter than the tick tock sounds of your clock. Enjoy physical powertrain mechanism display, It will definitely be a great conversation piece on your desk.
• ⚜UPGRADED DESIGN: Aluminum and brass are combined to form a gleaming stirling engine with no screws protruding, featuring hollow brass struts for enhanced high insulation, flywheel with skeleton design brass rim for smooth and fast operation, micron precision borosilicate glass cylinder and graphite power piston for ultra-low friction, the entire stirling engine runs quietly and noiselessly, and every metal part is specially anodized to ensure this engine always shines
• ⚜EXCELLENT ARTWORK FOR ENGINEERING PHYSICS ENTHUSIASTS-It will be a great conversation starter for everyone around you; a cool desktop piece amazing your friends and colleagues; a great gadget to kill time when boring; a relaxing stress relief physics toy for people in the office; an impressive gift for your families, friends, especially for engineering/physics lovers. It can be used for teaching physics, great to display basic principles of a Stirling engine and to show the art of design.
• ⚜MORE WAYS TO PLAY HZZ92-Stirling Engine converts small temperature differences into motion. As long as one plate is warmer than the other, then the engine will run. It does not matter which plate is hotter as long as the other plate is colder. It is possible to run on a variety of heat sources, including boiling water, hot tea or coffee, placing the engine on a bowl of ice, heating the top plate, and then the engine will run in reverse.
• ⚜PFCKE'S BRAND QUALITY ASSURANCE - We provide 12-Month Warranty for any quality issues. If you're not 100% completely satisfied with your stirling engine, just simply contact us and we will refund or replace your product immediately. Please contact us first if you have any question about our products, our support team will try our best to help you solve all the issues. email reply within 24hs.