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stirlingkit
8-coil Circular Electromagnetic Accelerator with High Magnetic Beads Scientific Experiment
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- $349.99
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- $349.99
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매진
Stirlingkit
100PCS+ Metal Rhythm Kinetic Jellyfish Model Building Kits with Glass Cover
- 정가
- $369.99에서
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- $369.99에서
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Stirlingkit
Purple Low Temperature Difference Stirling Engine Coffee Cup Engine
- 정가
- $39.99
- 판매가
- $39.99
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stirlingkit
Brushless DC Electric Motor Radial Solenoid Engine Model Hall effect ScienceToys
- 정가
- $239.99
- 판매가
- $239.99
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매진
Stirlingkit
300+PCS DIY Fantasy Dragon Airship 3D Steampunk Wooden Puzzle Toy Model
- 정가
- $29.99
- 판매가
- $29.99
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Some gifts get a polite smile; these get a crowd. Each one does something surprising the moment it's switched on: an engine that runs on heat, a steam engine that spins, a magnet that holds an object in mid-air, a coil that plays music through lightning arcs.
Most work within minutes of unboxing, so they're ready to show off on the day rather than after a weekend of building.