This "toy" is a mechanical version of electronics. We call it, "Spintronics". Instead of electrons flowing through wires, it uses chain running between sprockets. You can actually *feel* the pull of voltage and *watch* the current flow. Everyday circuits become fun, mesmerizing contraptions. Spintronics comes in a kit with a beautiful graphic novel that leads players through 159 fun puzzles to discover the tricks of electronic circuitry, and they do it in the way that brains learn best: through

Watch: Media Lab Professor Deblina Sarkar explains "spintronics," which broadly refers to the use of magnetic materials and the "spin" of electrons to perform computation. This technology offers a path to making computers much more energy efficient, a vital need as computation demands related to big data, artificial intelligence, and the Internet of Things (IoT) increase worldwide. In Nature Communications (Nature Portfolio), Professor Sarkar, researchers in the Nano-Cybernetic Biotrek Research

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