Models & Model Kits

Joytopiaminds Stirling Engine Model Kits, Adjustable Speed Alcohol-Powered Stirling Engine with Vertical Flywheel for Physical Science Experiment Display ️ Precision Speed Control - Unique top-mounted adjustment knob regulates airflow to vary RPM (200-800 range). Vertical flywheel design enables clear observation of piston dynamics in compact 10x10cm footprint Premium Multi-Material Build -... Joytopiaminds Stirling Engine Model Kits, Adjustable Speed Alcohol-Powered Stirling Engine with Vertical Flywheel for Physical Science Experiment Display