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INDI Control Panel in KStars. Generic GUI clients like KStars, XEphem, AstroImager, [2] or AstroTelescope. [3] Such clients generate a dynamic GUI to offer users a control panel to control the device. Logger clients to record messages, alarms, and data exchanged between devices and clients. Watch dog clients to ensure safe and proper operation ...
One oscillation of the torsion pendulum usually takes 12, 15, or 20 seconds. [2] The escapement mechanism, which changes the rotational motion of the clock's gears to pulses to drive the torsion pendulum, works rather like an anchor escapement. A crutch device at the top of the torsion spring engages a lever with two anchor-shaped arms; the two ...
The astronomical clock in the tower of the New Town Hall was installed in 1910. Kryštofovo Údolí. The Kryštofovo Údolí astronomical clock is a modern astronomical clock (inaugurated in 2008), built-in a former electrical substation. Hojsova Stráž. An astronomical clock in the Bohemian Forest was inaugurated in 2017. It has a concentric ...
A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952. [1]
The clock-room is behind the dial on the north wall of the transept, and still houses the clock mechanism. [4] Access is via a doorway visible in the stone wall directly beneath the clock. Legend suggests that the round hole cut in the bottom of the door was for the cathedral cat to gain entry to keep the clock clear of mice and rats. [5]
The astronomical clock at Norwich Cathedral was located in the priory's south transept. It was built to a high artistic standard—the exterior dial weighed 39 kilograms (86 lb) and the interior dial had a gilt moon and sun painted on the panel. There were images on the dial that may have represented the hours; 30 other images represented the ...
Note the observer's chair between the piers, and the narrow opening in the wall and roof for access to the sky. Because the telescope observes only in the meridian, no rotating dome is necessary. Meridian circles required precise adjustment to do accurate work. [17] The rotation axis of the main telescope needed to be exactly horizontal.
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates.
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