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Quantum mechanics of time travel. The theoretical study of time travel generally follows the laws of general relativity. Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), theoretical loops in spacetime that might make it possible to travel through time. [1][2][3][4 ...
Flip clock. A flip clock (also known as a "flap clock") is an electromechanical, digital time keeping device with the time indicated by numbers that are sequentially revealed by a split-flap display. The study, collection and repair of flip clocks is termed horopalettology (from horology - the study and measurement of time and palette - and the ...
The arrangement requires temple blocks to be used as the sound of the clock that is heard throughout, except for a brief section in the middle. The piece is in 4 4 time; the opening establishes a perfectly regular "tick-tock" accompaniment, beginning with a roll off the orchestra's staccato strike of an A chord, creating an expectation that it will continue.
A musical clock is a clock that marks the hours of the day with a musical tune. They can be considered elaborate versions of striking or chiming clocks. [1] Elaborate large-scale musical clocks with automatons are often installed in public places and are widespread in Japan. Unlike conventional electronic musical clocks, these clocks plays pre ...
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Twemco is the world's leading manufacturer of automatic flip clocks and its products became a symbol of Hong Kong precision engineering during the mid-20th century. [3] [4] The company claims to have sold almost 1 million clocks. [5] The design of Twemco's desk clocks resembles that of the world's first flip clock, the Cifra 3 designed in Italy ...
Solari Cifra 3 designed by Gino Valle [] Photo of "split-flap" display mechanism Detail showing the another part of the internal mechanism. The Cifra 3 [ˈtʃiːfra ˈtre] is a digital flip clock manufactured by Solari di Udine, S.p.A., Italy designed by Italian architect Gino Valle [] (1923–2003) in 1965, with significant contribution from John Myer, a Belgian inventor.
The Hafele–Keating experiment was a test of the theory of relativity. In 1971, [1] Joseph C. Hafele, a physicist, and Richard E. Keating, an astronomer, took four caesium -beam atomic clocks aboard commercial airliners. They flew twice around the world, first eastward, then westward, and compared the clocks in motion to stationary clocks at ...