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Clocks
Find information on a variety of clocks including on water, pendulum, quartz, mechanical, and sundials. SundialsWater ClocksAccurate Mechanical ClocksCalendarsCalendar & HolidaysSeasons…clock
(Encyclopedia) CE5 A pendulum clock: Weight-driven clock mechanism clock, instrument for measuring and indicating time. Predecessors of the clock were the sundial, the hourglass, and the…Brewer's: Clock
So church bells were once called (German glocke, French, cloche Mediæval Latin, cloca) Wel sikerer [surer] was his crowyng in his logge Than is a clok [bell] or abbay orologge Chaucer The…Water Clocks
Source: National Institute of Standards and Technology Physics Laboratory Water clocks were among the earliest timekeepers that didn't depend on the observation of celestial bodies. One of…Pendulum Clocks
In 1656, Christiaan Huygens, a Dutch scientist, made the first pendulum clock, regulated by a mechanism with a “natural” period of oscillation. Although Galileo Galilei, sometimes credited…Quartz Clocks
The Shortt clock was replaced as the standard by quartz crystal clocks in the 1930s and 1940s. Quartz clock operation is based on a property of quartz crystals. If you apply an electric…Thomas, Seth
(Encyclopedia) Thomas, Seth, 1785–1859, American clock manufacturer, b. Wolcott, Conn. In 1812 he sold his partnership in a clock business established by Eli Terry and set up a factory to make metal-…atomic clock
(Encyclopedia) atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that…Clocks Tick a Century
ContentsNightmare: A Tale for an Autumn EveningThe Paper WindmillThe Red Lacquer Music-StandSpring DayBathBreakfast TableWalkMidday and AfternoonNight and SleepThe Dinner-PartyStravinsky's…The Clock Will Not Be Turned Back
by Roy Wilkins As executive secretary of the National Association for the Advancement of Colored People, Roy Wilkins addressed the Commonwealth Club of California five weeks after…Trending
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