<p><br/></p><p>Stirling engine is a nice education model for students and teachers. It can help to better understand the working principle.<br/><br/><strong>Features:<br/>How it Works</strong><br/>A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that there is a net conversion of heat energy to mechanical work.<br/><br/><strong>A Great Explanation</strong><br/>Teacher can make the explaining process much straightforward and students can better understand its principle.<br/><br/><strong>Safe Opeartion</strong><br/>Run freely on the top of a cup of hot water, no need to fire a alcohol lamp,safer for children.<br/><br/><strong>Operating Requirement</strong><br/>Start temperature difference between the product bottom contact and circumstance should be greater than 25℃. <br/><br/><strong>Easy to Use</strong><br/>Gently flip the wheel, then it can run itself.<br/><br/><strong>Considerate Design</strong><br/>Exquisite frosted plunger can avoid steam leakage and the reduce abrasion.<br/><br/><strong>Note:</strong>If the friction between flywheel and support is big, please use a little graphite dry lube quiet it down nicely. Don't use oil, because it will lead to oil-dirt.<br/><br/><strong>Specifications:</strong><br/>Model: LL-001<br/>Wheel Color: Gold / Purple (Optional)<br/>Material: Stainless Steel + Spray Paint Carbon Steel + <br/>Principle of Operation: Heating Expansion / Cold Compression<br/>Speed: 180rpm (max.)<br/>Item Size: 12.2 * 10.2 * 10.2cm / 4.8 * 4 * 4"<br/>Item Weight: 250g / 8.8oz<br/>Package Size: 17.3 * 9.5 * 11cm / 6.8 * 3.7 * 4.3"<br/>Package Weight: 333g / 11.7oz<br/><br/><strong>Package List:</strong><br/>1 * Low Temperature Stirling Engine Model DIY Kit<br/>1 * User Manual(English)<br/><br/><strong>Note:</strong><br/>1. Children under 12-year-old should be accompanied by adult when playing this product.</p><div style="border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:block;overflow:hidden;width:0px;height:0px;left:-9999px;position:absolute;top:0px"><br/></div><p></p>