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Walkie-Talkie
2010-12-03 23:12:19

A walkie-talkie, hand-held and portable, is a two-way radio transceiver. Its development has been credited to Donald L. Hings, Alfred J. Gross, and engineering teams at Motorola. Other armed forces were developing similar designs. Walkie-talkies were commonly used in public safety, commercial and industrial job sites after the war. The walkie-talkies include a half-duplex channel as well as...

Word of the Day
cassation
  • The abrogation of a law by a higher authority; annulment.
  • In music, during the eighteenth century, a song or an instrumental piece similar to the serenade, intended for performance in the open air.
The word 'cassation' comes from the French 'cassation', from Latin 'casso' ("destroy, annul").
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