Low-temperature Stirling engine

Low-temperature Stirling engine   ★ EASY OPERATION: Install this motor over a mug of boiling water; wait 20 seconds; turn the flywheels smoothly; it will smoothly run quietly and slowly for about 20-30 minutes. The power piston moves with faint sounds when the flywheels rotate, which are even quieter than the ticking of your watch. This model needs a relatively high operating differential between the two panels (we will explain why in the description), so the use of BOILING WATER as a heat source is mandatory. ★ UNIQUE AND ELEGANT:The double flywheels are completely symmetrical on both sides of the beautifully curved lever and rotate simultaneously when you turn them slightly. Hollow details carved in the shape of a flower greatly beautify its appearance. 4 aluminum alloy legs and 4 gold fasteners on the top panel really give this silver engine a more attractive look. Special anodizing treatment guarantees the radiance of this engine for many years. It will be a great decoration for yo