Product Number: SB51130
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Grades 7-12. Invented in 1816 by Robert Stirling, the Stirling Engine Model is a unique heat engine to show students how thermal expansion and cold shrinkage can create energy. The compact, easy-to-use engine model uses a closed-cycle thermodynamic system in which air is compressed and expanded at different temperatures to create heat energy. You see it working as the generator gains speed and begins to power LED lights.