This oversized aged metal wall clock is 31.5" square and is finished in aged white and gray. The aged dial with aged black Roman numerals and aged black spade hour and minute hands sits behind a glass crystal and is surrounded by a formed metal bezel finished in aged white and gray. Quartz, battery-operated movement requires one AA sized battery (not included). One year warranty and Free Shipping.
In Chinese culture, giving a clock (送鍾/送钟, sòng zhōng) is often taboo, especially to the elderly as the term for this act is a homophone with the term for the act of attending another's funeral (送終/送终, sòngzhōng).[75][76][77] A UK government official Susan Kramer gave a watch to Taipei mayor Ko Wen-je unaware of such a taboo which resulted in some professional embarrassment and a pursuant apology.[78]

Whether you’re styling an accent wall or rounding out your decor, a retro-inspired wall clock like this one draws the eye while adding some utility to your ensemble. The large numbers make this clock easy to read, and with quartz movement, it features a more accurate reading. The minimalist black and white face and the sleek silver frame imbue it with contemporary appeal, making this piece easy to hang in a variety of design styles. Measures 15'' in diameter.
Besides the Chinese astronomical clock of Su Song in 1088 mentioned above, in Europe there were the clocks constructed by Richard of Wallingford in St Albans by 1336, and by Giovanni de Dondi in Padua from 1348 to 1364. They no longer exist, but detailed descriptions of their design and construction survive,[22][23] and modern reproductions have been made.[23] They illustrate how quickly the theory of the mechanical clock had been translated into practical constructions, and also that one of the many impulses to their development had been the desire of astronomers to investigate celestial phenomena.
Sync your phone and play music through the Sync your phone and play music through the integrated Bluetooth speaker. With its 1-Amp USB charging port you can charge your mobile device while you sleep. Large easy to read 0.9 in. LED display and soft mood light for nighttime use. Features PM Alarm1 or Alarm2 and Bluetooth indicators. AC ...  More + Product Details Close

The most accurate mechanical timekeeper is the Shortt pendulum clock; it makes use of the movement described above for electric master clock systems. The Shortt pendulum clock consists of two separate clocks, one of which synchronizes the other. The timekeeping element is a pendulum that swings freely, except that once every half minute it receives an impulse from a gently falling lever. This lever is released by an electrical signal transmitted from its slave clock. After the impulse has been sent, a synchronizing signal is transmitted back to the slave clock that ensures that the impulse to the free pendulum will be released exactly a half minute later than the previous impulse. The pendulum swings in a sealed box in which the air is kept at a constant, low pressure. Shortt clocks in observatories are kept in a room, usually a basement, where the temperature remains nearly constant, and under these conditions they can maintain the correct time to within a few thousandths of a second per day.

Electric currents can be used to replace the weight or spring as a source of power and as a means of signaling time indications from a central master clock to a wide range of distant indicating dials. Invented in 1840, the first battery electric clock was driven by a spring and pendulum and employed an electrical impulse to operate a number of dials. Considerable experimental work followed, and it was not until 1906 that the first self-contained battery-driven clock was invented.
“Great alarm clock for the price. Gigantic numbers for my old eyes. Very basic, easy to set, just what I wanted. Alarm is loud even on low [with] an awful sound that would wake the dead. But that sound makes me get right up, so it does exactly what it’s supposed to do. If you want a soft gentle caress to wake you, get something else, but this is a good alarm and easy to use.”
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