An electric clock is a clock that is powered by electricity, as opposed to a mechanical clock which is powered by a hanging weight or a mainspring. The...
21 KB (2,647 words) - 00:46, 9 August 2024
similar mechanism not used in a timepiece. The electric clock was patented in 1840, and electronic clocks were introduced in the 20th century, becoming...
96 KB (11,230 words) - 12:40, 23 September 2024
History of timekeeping devices (redirect from History of clocks)
introducing the term chronometer. The electric clock, invented in 1840, was used to control the most accurate pendulum clocks until the 1940s, when quartz timers...
100 KB (11,277 words) - 16:20, 2 October 2024
623 The home pendulum clock was replaced by less-expensive synchronous electric clocks in the 1930s and '40s. Pendulum clocks are now kept mostly for...
39 KB (4,722 words) - 19:06, 20 June 2024
Scottish inventor and engineer who was first to invent and patent the electric clock. He installed the railway telegraph lines between Edinburgh and Glasgow...
19 KB (2,161 words) - 13:40, 20 August 2024
pulse-per-second output can be used to drive many kinds of clocks. In analog quartz clocks and wristwatches, the electric pulse-per-second output is nearly always transferred...
51 KB (5,420 words) - 23:10, 30 September 2024
astronomical clock was carried out from January to September 2018, following a reconstruction of the Old Town Tower. During the renovation, an electric clock mechanism...
23 KB (2,510 words) - 22:42, 7 September 2024
Standard tire size was 7.00 (178) by 15 inches (381 millimetres). An electric clock was standard in 1947. A record 37,140 98s were sold in 1947. 1947 Oldsmobile...
93 KB (9,227 words) - 03:02, 26 August 2024
Henry E. Warren (section Examples of Telechron clocks)
known as the inventor of the first synchronous electric clock. He has been called the "father of electric time". Warren was born in Boston in 1872 and attended...
5 KB (410 words) - 03:45, 31 July 2024
palette - and the Italian "orologio a palette" - Italian for "flip clock"). An electric motor (often synchronous, if directly connected to the AC line) turns...
5 KB (617 words) - 00:11, 4 September 2024