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Perfect for hobbyists, science lovers, and students interested in studying energy transformation.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/cd62225d8fb82470d1aaba67ed75dfef.jpg?v=1777026634\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"External-combustion engine model 🔥\" src=\"https:\/\/www.youtube.com\/embed\/CqaCwNLQpz0\" height=\"827\" width=\"465\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611144507553,"sku":null,"price":49.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/8_e25839a9-9c56-4d5a-b868-74edca87e455.jpg?v=1782356415"},{"product_id":"aircraft-model-stirling-engine-model","title":"Aircraft Model Stirling Engine Model","description":"\u003cp\u003e\u003cstrong\u003eWe have a production patent for this product, and selling it through any other channel is not our genuine product\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis Aircraft model Stirling engine model is the perfect choice for children looking to learn about thermodynamics. Its dynamic design and impressive features are great for learning and entertaining. It also makes a great display piece.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_2045-1_cd70e63b-3992-4434-8b0d-fa779377059a.jpg?v=1777027185\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ciframe title=\"DIY16 cylinder Stirling engine engine\" src=\"https:\/\/www.youtube.com\/embed\/UV2pXSQbf4w\" height=\"841\" width=\"473\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eUsage:\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0670\/5119\/2614\/files\/111_acd77980-8f4e-47d9-978f-69ebe2604263_480x480.jpg?v=1685908083\"\u003e\u003c\/p\u003e\n\u003cp\u003eIf you want to extinguish the flames\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0670\/5119\/2614\/files\/2222_480x480.jpg?v=1685908124\"\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Quartz (Hot sales)","offer_id":46611144409249,"sku":null,"price":285.0,"currency_code":"USD","in_stock":true},{"title":"Metal","offer_id":46611144442017,"sku":null,"price":275.0,"currency_code":"USD","in_stock":true},{"title":"Enhanced version (dual gas tank)","offer_id":46611144474785,"sku":null,"price":295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/1_d2dd36af-5d40-4af0-a7c5-983005fef621.png?v=1782356415"},{"product_id":"stirling-engine-upgraded-model-aircraft","title":"Stirling Engine - Upgraded Model Aircraft","description":"\u003cp\u003eIts heart is:\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/nikolatoy.com\/products\/mini-aircraft-model-stirling-engine-model\" data-mce-href=\"https:\/\/nikolatoy.com\/products\/mini-aircraft-model-stirling-engine-model\"\u003eMini Aircraft model Stirling engine model\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003eWe have customized a complete set of Model aircraft on the basis of its original, making it look even more cool!!\u003cbr\u003e\u003cbr\u003eAll the accessories are made of steel, very hard\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eThis product only sells 100 sets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"455\" height=\"808\" src=\"https:\/\/www.youtube.com\/embed\/glAwxAMApgo\" title=\"Stirling Engine - Upgraded Model aircraft\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly video:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"Stirling Engine - Upgraded Model aircraft Assembly video\" src=\"https:\/\/www.youtube.com\/embed\/VaH0Fw3YdVc\" height=\"753\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611144376481,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/13_629d7664-a7b4-4f41-ac3b-6aa86663f835.png?v=1782356415"},{"product_id":"new-stirling-helicopter-model","title":"New Stirling Helicopter Model","description":"\u003cp\u003eIntroducing the New Stirling helicopter model, crafted from anodized aluminum with precision-cut blades and rotating tail and rotor. 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title=\"Stirling engine model\" src=\"https:\/\/www.youtube.com\/embed\/_IyfGepDmMQ\" height=\"827\" width=\"465\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0670\/5119\/2614\/files\/3_06144f3b-0e0c-4523-acde-ceb93a719a6c.jpg?v=1709991725\"\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611145392289,"sku":null,"price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/1_852e0b89-bb61-4f9d-8b5c-fb322534f16f.jpg?v=1782356417"},{"product_id":"bamboo-based-twin-cylinder-stirling-engine","title":"Bamboo Based Twin Cylinder Stirling Engine","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_1936-1.jpg?v=1777027183\" alt=\"\"\u003e\u003ciframe title=\"New bamboo and wood base twin cylinder Stirling engine\" 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It also makes a great display piece.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_2018-1_7a6d5bcd-8dc6-4dd4-903c-a577c9a01705.jpg?v=1777027184\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ciframe title=\"The Best Gift for a Boy\" src=\"https:\/\/www.youtube.com\/embed\/qEJ2FS4l_Vs\" height=\"841\" width=\"473\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611145523361,"sku":null,"price":58.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/19_278c9044-e573-48b5-afbb-063233480ef1.jpg?v=1782356418"},{"product_id":"steam-engine-model","title":"Temperature Difference Stirling Engine","description":"\u003cp\u003e\u003cstrong\u003eA cup of boiling water can make it move\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_2037-1_e6555830-c536-4c66-b37a-a8d6e96246ce.jpg?v=1777027180\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"The simplest Stirling dynamic model\" src=\"https:\/\/www.youtube.com\/embed\/Vs44Z2BWo-E\" height=\"841\" width=\"473\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611145425057,"sku":null,"price":29.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/16_b0b067b3-3ae6-4270-a04e-d1de55c64dcd.jpg?v=1782356418"},{"product_id":"stirling-engine-model-power-generation-windmill","title":"Stirling Engine Model - Power Generation+Windmill","description":"\u003cp\u003eThis Stirling engine model is an ideal tool for scientific experimentation and education. 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The overall appearance adopts this year's popular retro style design, powered by a vacuum ignition Stirling machine. The appearance and the sound of the engine during operation are both quite authentic and restore the characteristics of retro machinery. The four wheels are made of fiery red Tomahawk wheels, with aluminum alloy CNC precision carving.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eModular design of the entire machine, divided into three major assemblies: front axle, power, and rear axle, with a total of over 100 parts, all of which are manufactured through mechanical processing rather than mold opening to ensure the quality of the model. Equipped with over 100 stainless steel screws, the gearbox is the first manual all copper gear gearbox in China, with tight mechanisms and precise machining.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe steering gear structure adopts a fully simulated automotive rack and pinion steering mechanism, with manual steering and manual transmission, which greatly enhances the mechanical pleasure.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eGear combination transmission mode: two gears (D\/N), shift lever backward to neutral, forward to forward gear\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eMain material: aluminum alloy, brass\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eStainless steel surface treatment: anodizing\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eWeight: Net weight 1.2KG\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eSize: 22CM in length, 110CM in width, and 12CM in height\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePackaging size: 29CM long, 19CM high, 17CM wide\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eEngine no-load speed range: 500-2500r\/min\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFuel: anhydrous ethanol or 95% medical alcohol\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCylinder lubricating oil: 3000 mesh graphite lubrication\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611145785505,"sku":null,"price":289.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/20_70a8e311-6961-4568-833f-6ec9cae1f6d6.jpg?v=1782356419"},{"product_id":"double-cylinder-stirling-model-voltmeter","title":"Double Cylinder Stirling Model+Voltmeter","description":"\u003cp data-mce-fragment=\"1\"\u003eThis double cylinder Stirling model is a great choice for children’s study and research. The motor is powered by two cylinders, and it comes with a voltmeter for easy visualization of the output electricity. 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Its well-crafted construction and bearing elements are designed for durability and ease-of-use. Perfect for hobbyists, science lovers, and students interested in studying energy transformation.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ciframe title=\"Single cylinder Stirling engine External combustion engine\" src=\"https:\/\/www.youtube.com\/embed\/-WU0Q1UIlVQ\" height=\"841\" width=\"473\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611145982113,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/28_1_97385a3e-05ac-47cb-9c0e-131db7a567bb.jpg?v=1782356419"},{"product_id":"stirling-engine-v4-model","title":"Stirling Engine V4 Model","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThese exquisite models are not only ornaments, but also toys for children to study thermal dynamics well\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stirling engine V4 model provides reliable and powerful performance with 4 outputs running simultaneously, enabling maximum power output. \u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611146145953,"sku":null,"price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/29_1ec27f06-3865-44d6-915f-bbe388b7707c.jpg?v=1782356419"},{"product_id":"stirling-engine-with-adjustable-speed","title":"Stirling Engine With Adjustable Speed","description":"\u003cp\u003e\u003cstrong\u003eClockwise rotation accelerates speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis Stirling engine is an ideal desk ornament for adults and a great toy for kids for learning about thermodynamics. Featuring an adjustable speed and 95% alcohol fuel, it runs quietly and smoothly, making it a great educational tool and conversation starter.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_1966-1_15c0b2b5-528c-4a46-aeec-854e46c01c0c.jpg?v=1777027183\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Stirling engine with adjustable speed\" src=\"https:\/\/www.youtube.com\/embed\/CYIcZyTPmRc\" height=\"841\" width=\"473\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Horizontal","offer_id":46611145818273,"sku":null,"price":92.5,"currency_code":"USD","in_stock":true},{"title":"Vertical","offer_id":46611145851041,"sku":null,"price":92.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/21_aa4515b4-849f-4548-adb4-f1c00528054d.jpg?v=1782356419"},{"product_id":"stirling-engine-cupids-arrow","title":"Stirling Engine - Cupid's Arrow","description":"\u003cp data-mce-fragment=\"1\"\u003eExplore the power of thermodynamics with the Stirling Engine - Cupid's Arrow. 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It features a voltage meter and LED light to provide a more intuitive understanding of current output. Beautifully crafted for both educational and aesthetic purposes.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0625\/9294\/2135\/files\/DSC_2025-1_39aaeaa1-6169-4f1f-9151-3a92416c0387.jpg?v=1777027179\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Twin cylinder Stirling engine\" src=\"https:\/\/www.youtube.com\/embed\/w0FxkDlE_4U\" height=\"841\" width=\"473\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Nikola Toy","offers":[{"title":"Default Title","offer_id":46611146178721,"sku":null,"price":88.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0519\/8033\/7313\/files\/20260430162610_591_740_997f3d29-3028-4e93-8d65-6a39e13f5c2b.jpg?v=1782356420"},{"product_id":"stirling-engine-ufo","title":"Steam turbine - UFO","description":"\u003cp data-mce-fragment=\"1\"\u003eThis Steam engine is made in the shape of a UFO and is powered by an external jet of steam. 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