Quantcast

33-centimeter band Reference Libraries

Page 1 of about 1 Articles
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
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.