Models & Model Kits

Joytopiaminds Gamma Type Alcohol-Powered Hot-Air Stirling External Combustion Engine Model with LED Generator & Voltage Display for Physical Science Experiment Display & Decoration Dynamic Energy Visualization: Features real-time voltage display and LED illumination - watch heat conversion to electricity as the engine runs. Quartz glass heating tube provides clear visibility of internal workings during operation Premium... Joytopiaminds Gamma Type Alcohol-Powered Hot-Air Stirling External Combustion Engine Model with LED Generator & Voltage Display for Physical Science Experiment Display & Decoration