Clocks

Some articles on clocks, clock:

Flinders Street Station - Clocks
... The distinctive clocks under the main dome that show the departure times of the next trains date back to the 1860s ... by a railway officer using a long pole, during an 8 hour period the clocks at the main entrance were changed an average of 900 times ... The original indicator clocks were removed from service in 1983 as part of a redevelopment of the station, with their replacement by digital displays planned ...
Water Clock - Regional Development - Islamic and Arabic World
... In the medieval Islamic world (632-1280), the use of water clocks has its roots from Archimedes during the rise of Alexandria in Egypt and continues on ... The water clocks by Al-Jazari, however, are credited for going "well beyond anything" that had preceded them. 1206 treatise, he describes one of his water clocks, the elephant clock ...
History - Mechanical Escapement
... an alarum for several centuries before it was adapted to clocks ... it appeared as the timekeeper in the first mechanical clocks, which were large tower clocks ... origin and first use is unknown because it is difficult to distinguish which of these early tower clocks were mechanical, and which were water clocks ...
Vector Clock - Other Mechanisms
... introduced in 2008 Interval Tree Clocks ... This mechanism generalizes Vector Clocks and allows operation in dynamic environments when the identities and number of processes in the computation is not ... Torres-Rojas and Ahamad, developed in 1999 Plausible Clocks, a mechanism that takes less space than vector clocks but that, in some cases, will totally order events that are causally concurrent ...
Experimental Confirmation - Velocity and Gravitational Time Dilation Combined-effect Tests
... Keating, in 1971, flew caesium atomic clocks east and west around the earth in commercial airliners, to compare the elapsed time against that of a clock ... The clocks were expected to age more quickly (show a larger elapsed time) than the reference clock, since they were in a higher (weaker) gravitational potential for most of the trip (c.f ... But also, contrastingly, the moving clocks were expected to age more slowly because of the speed of their travel ...

Famous quotes related to clocks:

    Weighing the steadfastness and state
    Of some mean things which here below reside,
    Where birds like watchful clocks the noiseless date
    And intercourse of times divide,
    Henry Vaughan (1622–1695)

    When I woke, the town spoke.
    Birds and clocks and cross bells
    Dinned aside the coiling crowd,
    The reptile profligates in a flame,
    Spoilers and pokers of sleep....
    Dylan Thomas (1914–1953)

    all the clocks in the city
    Began to whirr and chime:
    ‘O let not Time deceive you,
    You cannot conquer Time.
    —W.H. (Wystan Hugh)

    What a devil hast thou to do with the time of the day? Unless hours were cups of sack, and minutes capons, and clocks the
    tongues of bawds, and dials the signs of leaping-houses, and the blessed sun himself a fair hot wench in flame-colored
    taffeta, I see no reason why thou shouldst be so superfluous
    to demand the time of the day.
    William Shakespeare (1564–1616)

    It was a bright, cold day in April and the clocks were striking thirteen.
    George Orwell (1903–1950)