'Edison national historic site' diaporamas de présentation

8 An Interactive Life

8 An Interactive Life. It will put the world at your fingertips, changing the ways you shop, play and learn. But when will the future arrive?. from Newsweek. Objectives. To understand the text To learn the words and phrases about the interactive life

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AC / DC

AC / DC. The Current Hits. Electricity is produced through the induction of electric current. By moving a wire across the lines of a magnetic field, or moving the magnetic field across the wire, one can produce electricity. The direction of the current may be constant or may change direction.

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Thomas Alva Edison 1847 - 1931

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