CHAPTER 4
Robots, Drones, and Other Things That Move
Robots have intrigued people long before it was possible to build one. Joan can remember reading Isaac Asimov’s I, Robot when she was little, but low-cost electronics were not available to make them. Now, however, it is entirely possible to build fairly capable robots for a reasonable cost, based on the technologies discussed in Chapters 2 and 3.
We use the term robot in this chapter pretty loosely, more or less thinking of it as a mechanical device that moves, driven by a combination of one or more microprocessors and computer code. Typically we think of “a robot” as something anthropomorphic—it ...
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