Coffee Cup Stirling Engine - Sterling Engine Kit

by American Stirling Co.

Product Features

• Ready to assemble - you need only a few common hand tools and supplies.
• Needs only a 40 degree differential (either up or down) to run
• Perfect for science fair experiments.
• Runs about 250 rpm on hot coffee or 100 rpm on ice.

Product Details

• Shipping Information: View shipping rates and policies
• ASIN: B000VS920K
• Amazon Best Sellers Rank: #205,738 in Toys & Games (See Top 100 in Toys & Games)

Product Description

Imagine the worlds most efficient engine design running off the heat of your coffee mug. -- When the heat expands the air, the air pushes up on the piston. When the air cools, it contracts, pulling the piston down. This heating and cooling moves the piston, making the propeller turn. -- Made of metal parts with wood propeller.