ocr: PRINCIPLES OF SCIENCE ELECTRICITY LECTRICITY is the most TELEVISION versatile andconvenient CLOCK. source of power we have. It LIGHT- makes things move, from the hands on an electric clock to a train full of commuters. Telephones, faxes, and modems all use electricity to carry POWER. - information almost instant tai neously SUPPLY from one place to another: In computers, electricity is used to. store and process huge HEATER quantities ofdata at incredible speed. Lo - - - - What is Electricity? TELEPHONE Related Machines
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