Search results
Results from the WOW.Com Content Network
Commercial manufacturing of these atomic clocks began in 2011. [4] The CSAC, the world's smallest atomic clock, is 4 x 3.5 x 1 cm (1.5 x 1.4 x 0.4 inches) in size, weighs 35 grams, consumes only 115 mW of power, and can keep time to within 100 microseconds per day after several years of operation.
Research on dozens of sites to find the priciest real estate, artwork, yachts and jewels pinpoints the world’s most expensive item right now: the History Supreme Yacht, measuring 100-feet long ...
Atomic Master Clock & Titanium Wristwatch 2018 Wrist 2.900 3.456 12/10/2019 New York Phillips [107] Patek Philippe Pink Gold Ref. 1518 1958 Wrist 2.900 3.02 25/04/2022 Hong Kong Sotheby's [108] 63 Patek Philippe Emperor Haile Selassie Ref. 2497 1954 Wrist 2.898 3.602 05/15/2017 Geneva Christie's [109] [110] 64 Patek Philippe
Atomic clocks are installed at sites of time signal radio transmitters. [103] They are used at some long-wave and medium-wave broadcasting stations to deliver a very precise carrier frequency. [104] Atomic clocks are used in many scientific disciplines, such as for long-baseline interferometry in radio astronomy. [105]
The "Antiques Roadshow" appraiser said the clock would have been worth $1,000 to $2,000 more if the dome surrounding the piece was still intact -- but we're guessing the owner is still pretty ...
The first Atmos clock was designed by Jean-Léon Reutter, an engineer in Neuchâtel, Switzerland, in 1928. [5] [6] [7] This noncommercial prototype, which predated the Atmos name but is now known unofficially as Atmos 0, was driven by a mercury-in-glass expansion device. The mechanism operated on temperature changes alone.
Other cool features of this mid-priced sunset alarm clock are the variable duration of the sunrise or sunset simulations (20, 30, or 45 minutes), a light-sensitive clock display that brightens ...
By weighted average, Symmetricom atomic clocks contributed over 90% of UTC (Coordinated Universal Time, the world time standard). The BIPM (International Bureau of Weights and Measures) calculates UTC by averaging the combined contributions of the national laboratories of its member countries.