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  2. Kater's pendulum - Wikipedia

    en.wikipedia.org/wiki/Kater's_pendulum

    Gravimeter with variant of Repsold pendulum The large increase in gravity measurement accuracy made possible by Kater's pendulum established gravimetry as a regular part of geodesy . To be useful, it was necessary to find the exact location (latitude and longitude) of the 'station' where a gravity measurement was taken, so pendulum measurements ...

  3. Gravimetry - Wikipedia

    en.wikipedia.org/wiki/Gravimetry

    Gravimeter with variant of Repsold–Bessel pendulum An Autograv CG-5 gravimeter being operated. A gravimeter is an instrument used to measure gravitational acceleration. Every mass has an associated gravitational potential. The gradient of this potential is a force. A gravimeter measures this gravitational force.

  4. Foucault pendulum - Wikipedia

    en.wikipedia.org/wiki/Foucault_pendulum

    The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist Léon Foucault, conceived as an experiment to demonstrate the Earth's rotation. If a long and heavy pendulum suspended from the high roof above a circular area is monitored over an extended period of time, its plane of oscillation appears to change ...

  5. Pendulum (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Pendulum_(mechanics)

    A pendulum is a body suspended from a fixed support such that it freely swings back and forth under the influence of gravity. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back towards the equilibrium position.

  6. Persoz pendulum - Wikipedia

    en.wikipedia.org/wiki/Persoz_pendulum

    Persoz pendulum device. The pendulum consists of balls which rest on the coating under test and form the fulcrum. The Persoz pendulum is very similar to the Konig pendulum. Both employ the same principle, that is the softer the coating the more the pendulum oscillations are damped and the shorter the time needed for the amplitude of oscillation ...

  7. Thermodynamic pump testing - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_pump_testing

    Thermodynamic pump testing is a form of pump testing where only the temperature rise, power consumed, and differential pressure need to be measured to find the efficiency of a pump. These measurements are typically made with insertion temperature probes and pressure probes fitted to tapping points on the pump's inlet and outlet. [ 1 ]

  8. A busy longevity clinic owner is 33 but says her biological ...

    www.aol.com/busy-longevity-clinic-owner-33...

    Barnes-Lentz also works out, gets some sun exposure to regulate her circadian rhythm, spends time in a sauna, showers, and measures her biometrics (body composition, grip strength, lung health ...

  9. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    Keep the temperature of the sensor wire constant and measure the voltage as a function of pressure; Note that keeping the temperature constant implies that the end losses (4.) and the thermal radiation losses (3.) are constant. [3] The electrical resistance of a wire varies with its temperature, so the resistance indicates the temperature of wire.

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