Stirling Engine Coffee Mug Lid

by Next Deal Shop
$49.99 compare at $83.99



Coffee still too hot to drink? Place this beautiful little engine on top of your cup and watch it go! 


This fully functional Stirling engine model operates solely from the power provided by the heat (or cold) of the surface on which it is placed.  The model is designed with coffee cups in mind; place it on top of the rim when the mug is full of piping-hot liquid and the heat from the steam given off by the liquid will power the engine, causing the wheel to move faster or slower depending on the temperature of the steam.


Main Features:

  • As long as the difference in temperature is enough, it won't stop going
  • Great to look at, even when not in action
  • Safe for kids (think science project!)
  • Wheel spins slower or faster depending on heat temperature
  • Works with coffee mugs filled with hot liquid, hot plates, or suspended over a candle flame
  • Lasts up to 30-40 minutes when using boiling water



Product Size Diameter:
10.3 cm / 4.06 inch
12.5 cm / 4.92 inch
Product Weight 238g/8.4oz
Package Components 1 x Stirling Engine Coffee Mug Lid
Product Color Silver and Bronze
The term "compare at" means the price at which a comparable item may be sold on an everyday basis at retail stores. All prices shown in US Dollars.

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