Smithsonian Perpetual Motion Machine

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Build a Perpetual Motion Machine powered by an invisible magnetic field! Ever wonder why scientists, engineers, and mathematicians have never been able to create such a machine wit hout an external energy source like batteries? Explore different kinds of motion machines and understand why they didn’t work. Learn about magnets and the First and Second Laws of Thermodynamics. • Understand how batteries create the magnetic force to keep the machine operating. • Learn the First and Second Laws of Thermodynamics. • Requires 4 (1.5V) AA batteries (not included) • Ages 8+ Show more