An equation clock is a mechanical clock which includes a mechanism that simulates the equation of time, so that the user can read or calculate solar time...

indicated by a steady clock set so that over the year its differences from apparent solar time would have a mean of zero. The equation of time is the east...

A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals...

apply a correction to the time shown by a clock to make it agree with sundial time. Some elaborate "equation clocks", such as one made by Joseph Williamson...

shown by a clock that runs at constant speed Equation clock, a clock that contains a mechanism that embodies the equation of time, so the clock shows solar...

ISBN 978-3-642-01962-3. Extract of page 87 See equations 3, 4, 6 and 9 of Iorio, Lorenzo (2005). "An analytical treatment of the Clock Paradox in the framework of the...

in a clock made by Joseph Williamson in 1720. It employed a differential to add the equation of time to local mean time, as determined by the clock mechanism...

Huygens first used a clock to calculate the equation of time (the difference between the apparent solar time and the time given by a clock), publishing his...

A real-time clock (RTC) is an electronic device (most often in the form of an integrated circuit) that measures the passage of time. Although the term...

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...

railways needed clocks for railway time that were synchronized between stations, while local people needed to match their clock (or the church clock) to the time...

mechanics and information theory, the Fokker–Planck equation is a partial differential equation that describes the time evolution of the probability...

Wheeler–DeWitt equation for theoretical physics and applied mathematics, is a field equation attributed to John Archibald Wheeler and Bryce DeWitt. The equation attempts...

ahead of the clock. Since the main effect of this oscillation concerns time, it is called the equation of time, using the word "equation" in a somewhat...

A matter wave clock is a type of clock whose principle of operation makes use of the apparent wavelike properties of matter. Matter waves were first proposed...

The Prague astronomical clock or Prague Orloj (Czech: Pražský orloj [praʃskiː orloj]) is a medieval astronomical clock attached to the Old Town Hall in...

measured elapsed time with a water clock, using an "extremely accurate balance" to measure the amount of water. The equations ignore air resistance, which has...

are considered a single movement. All but the Equation Works movements have dials on the front of the clock, arranged in left, center, and right sections...

constructed some famous public clocks, including the 1780 equation clock on the Hôtel de Ville de Paris and the clock on the Hôtel des Invalides. A nephew...

seven years after he arrived in Paris, Ferdinand Berthoud submitted an equation clock to the Royal Academy of Sciences, thus demonstrating his extraordinary...

The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle...

A water clock, or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) 'pipette, water clock'; from κλέπτω (kléptō) 'to steal' and ὕδωρ (hydor) 'water';...

An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms. It is based on atoms having different energy levels. Electron...

from equation (1) Glasgow, David (1885). Watch and Clock Making. London: Cassel & Co. pp. 279–284. Matthys, Robert J. (2004). Accurate Pendulum Clocks. UK:...

Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates...

of synchronized clocks (x′, y′, z′, t′). With inertial frames, neither observer is under acceleration, and a simple set of equations allows us to relate...

date, the moon phase, and the equation of time, and includes a tide clock. Senzeilles [fr]. The Senzeilles astronomical clock [fr] was constructed by self-taught...

Compton wavelength Faraday wave Kapitsa–Dirac effect Matter wave clock Schrödinger equation Thermal de Broglie wavelength De Broglie–Bohm theory Kragh, Helge...

closer the clock is to the source of gravitation), the slower time passes, speeding up as the gravitational potential increases (the clock moving away...

stationary and synchronous clocks that are placed at points A and B, if the clock at A is moved along the line AB and stops at B, the clock that moved from A would...