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The Cifra 5 clock was the progenitor of a full-fledged family of industrial-type clocks, awarded the Compasso d'Oro in 1956. [6] [5] [1] With the help of Belgian inventor John Meyer, a roll of 48 pallets was achieved, leading to the creation of the smallest direct-reading clock, the iconic Cifra 3. [7]
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 ...
COAA's Radio Clock [21] F6CTE's CLOCK [15] WWVH: 5, 10, and 15 MHz AM Voice with modified IRIG-Hformat time code on 100 Hz sub-carrier (CCIR code) HF radio and antenna (plus software if automatic updating of computer time is desired) TrueTime TL-3 WWV Receiver; CHU: 3.33 MHz, 7.85 MHz, 14.67 MHz Bell 103 modem tones, decodable by most computer ...
Cifra 3, a classic clock designed by Gino Valle in 1955; La cifra, a 1789 opera by Antonio Salieri; CIFRA - González, Raga y Asociados, a Uruguayan polling consultancy; Cifra (musical genre) Folkloric music genre from Argentina and Uruguay; Cifra, a Mexican retail store founded in 1952, now Walmart de México y Centroamérica
Time signals were generated from the observatory's own pendulum clocks. The transmitter oscillators were condenser-tuned and so frequency stability was not high until quartz crystal control was implemented in 1933. In 1938, the call was changed to CHU, operating on frequencies of 3.33, 7.335 and 14.67 MHz, at a transmitter power of only 10 W.
The Doomsday Clock will be updated today as a symbol of the threat from war, nuclear weapons and the climate crisis, as well as more new concerns such as artificial intelligence. It reached that ...
The Signaltron main departure board at Praha-Smíchov station, Czech Republic (2012), manufactured by Pragotron Schematic of a split-flap display in a digital clock display An animation of how a split-flap display works Flap departure board at Gare du Nord, Paris (2007) Section of a split-flap display board at Frankfurt (Main) Hauptbahnhof (2005) Enlarged inner workings of a split-flap clock
In Argentina and Uruguay Cifra is a genre of traditional melody with accompaniment, associated with usually improvised lyrics. [1]In this genre the lyrics are improvised by two competing performers;by two or more participants taking turns, based on impromptu or made-up stanzas; or by a solo performer who improvises on a topic requested by his audience.