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Many of us have fond childhood memories of a special cuckoo clock, perhaps at a grandparent's house, or even in our own. Who doesn't don't forget the feeling of delight when that sweet, beguiling small bird would appear and fill the room with its song? While a lot of people have cuckoo clocks as treasured keepsakes, the history of these great clocks is usually unknown. It's a wealthy and fascinating history and is worth exploring. "Time is gold" as the saying goes and so are clocks like the Quartz Clock Movement you can see on this page. The value of time imprinted on the clocks produced.
Cuckoo Clocks: A Brief History; Until the early 1600's, time telling devises in Germany consisted of sundials and hourglasses. All of that changed in 1630, when a man named Franz Kettler from Triberg, Germany went to what exactly is now the Czech Republic, and brought back the idea of a clock. It was a simple style, known as a wooden beam clock, and had wooden gears and stones as weights. Soon, clock making became a source of pride, and supplied occupation during winter months. A special group referred to as the Hauslers developed. These men were the younger sons of land owners, and employed clock creating as an additional source of income.
What makes an atomic clock more acurate than a quartz clock?
I can understand a 'traditional' movement clock fluctuates with temperature etc... But why is an atomic clock SO accurate and how does an atomic clock differ to a quartz clock - neither have movement
an atomic clock works somewhat like a geiger counter and is not very sensitive to changes in its environment. a quartz crystal is sensitive to changes in pressure and temperature, the crystal is enclosed in a metal "oven" to reduce its sensitivity, but the atomic clock is still much more accurate. The quartz clock does have movement it flexes when an electric charge is applied to it, and when this charge is removed the crystal relaxes and emits a charge. It is used as a frequency determining device in an oscillator circuit. The atomic clock detects the product of radioactive decay in cesium nuclei. The atomic clock was one of the tests of Einsteins proposal that gravitaional fields have the same relativistic effect as acceleration an atomic clock that is high in the atmospere and thus further from earths center of gravity runs slower.
On most Cuckoo Clocks, when the movement on the inside strikes to mark the hour, a cuckoo bird appears out of a door and returns behind the door when the gong or other sound stops. Some clocks may well have other animals, trains or individuals that appear to mark the time. Creating Cuckoo Clocks became such a well-known business that craftsmen would attempt to outdo each other by creating a additional lovely and elaborate clock than their neighbor. Not just the mechanisms of the clocks became more sophisticated, moving from wood to metal, but also the decorations, which progressed from watercolor paints and square faces to elaborately carved faces painted in wealthy, bold colors.
In 1738, Anton Ketterer added a cuckoo bird to his clocks, and thought rapidly spread. Cuckoo clock creating became a highly specialized craft with different artisans making distinct parts of the clock. A pendulum was now employed as opposed to the old method, and new innovations were generally taking location. Styles of Cuckoo Clocks Every clock had its own exceptional style, but specific fundamental styles emerged. By the mid 1800's, two styles predominated: the framed clock and the railway home. The framed clock consisted of a wooden frame and painted inner section where the clock face would be attached. It was typically painted with Black Forest scenes and had the cuckoo situated inside the upper section of the clock. The railway house style was shaped like a home and was normally decorated with grape vines, ivy, flowers, or animals.