In this video excerpt from NOVA’s "Making Stuff: Smaller", host and New York Times technology columnist David Pogue visits the Institute of Robotics at ETH Zurich, where materials scientists are designing a microbot—about the width of a strand of hair—that can travel into a human eye to treat a type of blindness. The microbot is controlled by an externally generated electromagnetic field, eliminating the need for bulky mechanical parts. In a related activity, students learn about magnets and their properties while designing their own model of a small magnet-powered robot. Students also see how materials scientists use design ideas from nature to overcome weird forces that microbots encounter.
This video is available in both English and Spanish audio, along with corresponding closed captions.
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