Книга: Herbert Thomas Ernest «The telephone system of the British post office. A practical handbook»

Другие книги автора:

См. также в других словарях:

• motion picture, history of the — Introduction       history of the medium from the 19th century to the present. Early years, 1830–1910 Origins       The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first …   Universalium

• Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

• American and British English differences — For the Wikipedia editing policy on use of regional variants in Wikipedia, see Wikipedia:Manual of style#National varieties of English. This is one of a series of articles about the differences between British English and American English, which …   Wikipedia

• political system — Introduction       the set of formal legal institutions that constitute a “government” or a “ state.” This is the definition adopted by many studies of the legal or constitutional arrangements of advanced political orders. More broadly defined,… …   Universalium

• Ship gun fire-control system — Mk 37 Director c1944 with Mk 12 (rectangular antenna) and Mk 22 orange peel Ship gun fire control systems (GFCS) enable remote and automatic targeting of guns against ships, aircraft, and shore targets, with or without the aid of radar or optical …   Wikipedia

• Human rights in the United States — In 1776, Thomas Jefferson proposed a philosophy of human rights inherent to all people in the Declaration of Independence, asserting that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that… …   Wikipedia