Clock Wallpaper

Clock Wallpaper

lucas17
27/03/2020
  • 5.7 MB

    Размер файла

  • Android 4.0+

    Android OS

Oписание Clock Wallpaper

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A clock is an instrument to measure keep and indicate time. The word clock is derived from the Celtic words clagan and clocca meaning bell. A silent instrument missing such a striking mechanism has traditionally been known as a timepiece. In general usage today refers to any device for measuring and displaying the time. Watches and other timepieces that can be carried on one's person are often distinguished from clocks.

The clock is one of the oldest human inventions meeting the need to consistently measure intervals of time shorter than the natural units: the day the lunar month and the year. Devices operating on several physical processes have been used over the millennia. A sundial shows the time by displaying the position of a shadow on a flat surface. There is a range of duration timers a well-known example being the hourglass. Water along with the sundials are possibly the oldest time-measuring instruments. A major advance occurred with the invention of the verge escapement which made possible the first mechanical clocks around 1300 in Europe which kept time with oscillating timekeepers like balance wheels. Spring-driven clocks appeared during the 15th century. During the 15th and 16th centuries, clockmaking flourished. The next development in accuracy occurred after 1656 with the invention of the pendulum clock. A major stimulus to improving the accuracy and reliability of clocks was the importance of precise time-keeping for navigation. The electric clock was patented in 1840. The development of electronics in the 20th century led to clocks with no clockwork parts at all.

The timekeeping element in every modern clock is a harmonic oscillator a physical object that vibrates or oscillates at a particular frequency. This object can be a pendulum a tuning fork a quartz crystal or the vibration of electrons in atoms as they emit microwaves. Analog clocks usually indicate time using angles. Digital display a numeric representation of time. Two numeric display formats are commonly used on digital clocks: 24-hour notation and 12-hour notation. Most digital use electronic mechanisms and LCD LED or VFD displays. For convenience distance telephony or blindness auditory present the time as sounds. There are also clocks for the blind that have displays that can be read by using the sense of touch. Some of these are similar to normal analog displays but are constructed so the hands can be felt without damaging them. The evolution of the technology of clocks continues today. The study of timekeeping is known as horology.

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Что нового в последней версии 3.0

Last updated on 2020-03-27
Update latest support Andriod version 9.
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Видео и Скриншоты

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Информация Clock Wallpaper APK

Последняя Версия
3.0
Категория
Развлечения
Android OS
Android 4.0+
Размер файла
5.7 MB
Разработчик
lucas17
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