title: List of solar engines
text: # List of solar engines
  
  Solar engines include:
  
  * Crookes radiometer, a light mill composed of an airtight glass bulb containing a partial vacuum
  * Solar engine, a circuit which stores energy from solar cells in a capacitor and releases it in pulses to animate toys
  * Stirling engine, a heat engine of the external combustion piston engine type whose heat-exchange process allows for near-ideal efficiency in conversion of heat into mechanical movement
  * Stellar engine, hypothetical megastructures that work on the scale of entire stars
  