Science By KKmoon

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• 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. Teacher can make the explaining process much straightforward and students can better understand its principle.
• Run freely on the top of a cup of hot water, no need to fire a alcohol lamp,safer for children.
• Start temperature difference between the product bottom contact and circumstance should be greater than 25?.
• Gently flip the wheel, then it can run itself. Exquisite frosted plunger can avoid steam leakage and the reduce abrasion.
• 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.
• Warranty not applicable for this product

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