Next-generation atomic clock successfully tested at sea

Adelaide University researchers have successfully tested a new type of portable atomic clock at sea for the first time, using ...
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Tour Europe's great celestial clocks

All living creatures are affected by the cycles of celestial objects. Humans have always been locked into the rhythms of sunrise and sunset, the phases of the Moon, and the seasons. We left some of ...
DePauw

Observatory Instruments

McKim Observatory still houses many of its original instruments, including a 9.53 inch Clark Refractor telescope, a meridian transit telescope, and a gravity driven chronograph. Missing from the early ...
insider.si.edu

The most important clock in America : the David Rittenhouse astronomical musical clock at Drexel University / Ronald R. Hoppes

The dial -- The left hand side of dial -- The sun - moon dial -- Repeat and strike selector -- Moon elliptic orbit and node indicator -- Right hand side of dial -- Equation-of-time indicator -- Manual ...
insider.si.edu

Geared to the Stars. The Evolution of Planetariums, Orreries, and Astronomical Clocks, by Henry C. King in collaboration with John R. Millburn

Bedini, Silvio A. 1980. [Book review] "Geared to the Stars. The Evolution of Planetariums, Orreries, and Astronomical Clocks, by Henry C. King in collaboration with John R. Millburn." Sky and ...