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  2. Kelvin equation - Wikipedia

    en.wikipedia.org/wiki/Kelvin_equation

    The Kelvin equation describes the change in vapour pressure due to a curved liquid–vapor interface, such as the surface of a droplet. The vapor pressure at a convex curved surface is higher than that at a flat surface. The Kelvin equation is dependent upon thermodynamic principles and does not allude to special properties of materials.

  3. 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]

  4. 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 ]

  5. Tide-Predicting Machine No. 2 - Wikipedia

    en.wikipedia.org/wiki/Tide-Predicting_Machine_No._2

    This arrangement makes a physical analog of just one term in the tide equation. Old Brass Brains computes 37 such terms. The slotted yoke cranks at the top and bottom (with the triangular pieces) move vertically in a sinusoidal pattern. The locations of their pins determine their amplitudes and phases, representing factors in the tide equation.

  6. Cable theory - Wikipedia

    en.wikipedia.org/wiki/Cable_theory

    Cable theory in computational neuroscience has roots leading back to the 1850s, when Professor William Thomson (later known as Lord Kelvin) began developing mathematical models of signal decay in submarine (underwater) telegraphic cables. The models resembled the partial differential equations used by Fourier to describe heat conduction in a wire.

  7. Heat death paradox - Wikipedia

    en.wikipedia.org/wiki/Heat_death_paradox

    The heat death paradox, also known as thermodynamic paradox, Clausius' paradox, and Kelvin's paradox, [1] is a reductio ad absurdum argument that uses thermodynamics to show the impossibility of an infinitely old universe. It was formulated in February 1862 by Lord Kelvin and expanded upon by Hermann von Helmholtz and William John Macquorn ...

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  9. Vortex theory of the atom - Wikipedia

    en.wikipedia.org/wiki/Vortex_theory_of_the_atom

    Between 1870 and 1890 the vortex atom theory, which hypothesised that an atom was a vortex in the aether, was popular among British physicists and mathematicians. William Thomson, who became better known as Lord Kelvin, first conjectured that atoms might be vortices in the aether that pervades space.