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  2. Tide-predicting machine - Wikipedia

    en.wikipedia.org/wiki/Tide-predicting_machine

    The first tide predicting machine (TPM) was built in 1872 by the Légé Engineering Company. [11] A model of it was exhibited at the British Association meeting in 1873 [12] (for computing 8 tidal components), followed in 1875-76 by a machine on a slightly larger scale (for computing 10 tidal components), was designed by Sir William Thomson (who later became Lord Kelvin). [13]

  3. Lord Kelvin - Wikipedia

    en.wikipedia.org/wiki/Lord_Kelvin

    Absolute temperatures are stated in units of kelvin in Lord Kelvin's honour. While the existence of a coldest possible temperature, absolute zero , was known before his work, Kelvin determined its correct value as approximately −273.15 degrees Celsius or −459.67 degrees Fahrenheit . [ 13 ]

  4. James Robert Erskine-Murray - Wikipedia

    en.wikipedia.org/wiki/James_Robert_Erskine-Murray

    He was born in Edinburgh on 24 October 1868, the eldest son of Alexander Erskine Erskine-Murray , Sheriff of Glasgow (1832-1907), and his wife, Helen Pringle, [1] daughter of Robert Pringle of Symington. [2] In 1886 he began study under Lord Kelvin at Glasgow University assisting Kelvin in electrical experiments from 1888 and graduating BSc in ...

  5. William Edward Ayrton - Wikipedia

    en.wikipedia.org/wiki/William_Edward_Ayrton

    She assisted him in his research and became known (as Hertha Ayrton) for her own scientific work on the electric arc and other subjects. [3] In 1899, Ayrton supported Hertha on her way to being elected the first woman member of the Institution of Electrical Engineers and the Royal Society awarded her a Hughes Medal in 1906.

  6. King's Observatory - Wikipedia

    en.wikipedia.org/wiki/King's_Observatory

    An entirely new system, providing continuous automatic recording, was installed by Lord Kelvin personally in the early 1860s. This device, based on Kelvin's water dropper potential equaliser with photographic recording, [17] was known as the Kew electrograph. It provided the backbone of a long and almost continuous series of potential gradient ...

  7. Differential analyser - Wikipedia

    en.wikipedia.org/wiki/Differential_analyser

    One of the earliest practical uses of Thomson's concepts was a tide-predicting machine built by Kelvin starting in 1872–3. On Lord Kelvin's advice, Thomson's integrating machine was later incorporated into a fire-control system for naval gunnery being developed by Arthur Pollen, resulting in an electrically driven, mechanical analogue ...

  8. Andrew Gray (physicist) - Wikipedia

    en.wikipedia.org/wiki/Andrew_Gray_(physicist)

    His proposers were Lord Kelvin, James Thomson Bottomley, and John Gray McKendrick. He served as vice-president to the society 1906 to 1909. [2] In June 1896 he was elected a Fellow of the Royal Society [3] He remained in Bangor until 1899, when he returned to Glasgow to become the Professor of Natural Philosophy, succeeding Kelvin on his ...

  9. Ball-and-disk integrator - Wikipedia

    en.wikipedia.org/wiki/Ball-and-disk_integrator

    A wire running along the top of the wheels took the maximum value, which represented the tide in the port at a given time. [2] Thomson mentioned the possibility of using the same system as a way to solve differential equations , but realized that the output torque from the integrator was too low to drive the required downstream systems of pointers.