TECHNOLOGY
Hirschmann, Kris

HDTV: High Definition Television

(4) 4-6 Great Idea series. These volumes explore inventions that allow for invisibility, pilotless flight, high-definition television signals, and animal-behavior imitation by robots. "Did You Know?" facts and other sidebars, while interesting, often interrupt the flow of the texts. Captioned photographs support and clarify the science behind the inventions. Reading list, websites. Glos., ind. Review covers these Great Idea titles: Becoming Invisible, HDTV, Pilotless Planes, and SCRATCHBot.

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