Perpetual motion—it’s fun to say that. For some people, perpetual motion machines hold the secret to everlasting free energy that will save the world. To them, it’s a machine that is just beyond our grasp. If only we could tweak our design just a little bit, it would work. To others (like me), perpetual motion machines are impossible—they don’t fit with our well-tested ideas of the conservation of energy. However, they can still make a fun puzzle, as you see above.
OK, so exactly what is a perpetual motion machine? The basic idea is that these machines can operate in some manner (say with a spinning wheel) forever without an energy source. That’s not so impossible, just not very easy (since machines always lose energy to friction). A better perpetual motion machine not only works forever, but also has a positive energy output (even if just a small amount) so that it can save the world—but like I said, these don’t exist.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.