Stirlingkit
SEMTO ENGINE ST-NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs- FS-L200AC
- 정가
- $199.99에서
- 판매가
- $199.99에서
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- 단가
- per
stirlingkit
Stirling Engine Kit Hot Air Engine Motor Model Educational Toy Electricity Generator Colorful LED
- 정가
- $69.99
- 판매가
- $69.99
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- 단가
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stirlingkit
Low Temperature Stirling Engine Motor Steam Heat Education Model Toy
- 정가
- $39.99
- 판매가
- $39.99
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- 단가
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판매
Stirlingkit
MAD RC DIY V8 Engine Model Kit for Capra VS4-10 Pro - Build Your Own V8 Engine That Works
- 정가
- $59.99에서
- 판매가
- $59.99에서
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$79.99
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stirlingkit
V4 Car Engine Model Full Metal Assembling Four-cylinder Building Kits for Researching Industry Studying/Toy/Gift
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- $469.99
- 판매가
- $469.99
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Stirlingkit
Vinyl Record Shape Bluetooth Musical Tesla Coil with Long Arc & Dual Mode - US Plug
- 정가
- $69.99
- 판매가
- $69.99
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stirlingkit
Stark Solar Motor Toy Magnetic Suspension Fan Blade Creative Decoration Science Gift
- 정가
- $39.99
- 판매가
- $39.99
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매진
stirlingkit
V8 Combustion Engine Model Building Kit STEM Toy Science Experiment
- 정가
- $89.99
- 판매가
- $89.99
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stirlingkit
VISIBLE V8 Internal Combustion OHC Engine Motor Working Model Haynes Kit
- 정가
- $149.99
- 판매가
- $149.99
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저장 <span class=trans-money>$60.00</span>
Stirlingkit
700PCS+ Bengal Tiger 3D Assembly Metal Model Kits
- 정가
- $99.99
- 판매가
- $99.99
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$159.99
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- per
The best science gift is one a child can watch working. Stirling engines turn the heat of an alcohol lamp or hot water into motion, solar motors spin in sunlight, and magnetic levitation makes objects float, all without screens.
Younger kids do best with heat-powered or solar models; older kids can tackle a car engine kit with an adult. Fuel-powered engines are best left to grown-ups.