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   Articles with "planck constant" as a keyword



The Planck-Balance—using a fixed value of the Planck constant to calibrate E1/E2-weights

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recommendations! Published in 2018 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/aabc9e

Abstract: A balance is proposed, which allows the calibration of weights in a continuous range from 1 mg to 1 kg using a fixed value of the Planck constant, h. This so-called Planck-Balance (PB) uses the… read more here.

Keywords: fixed value; value planck; planck; using fixed ... See more keywords
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Determining Planck’s constant with LEDs—what could possibly go wrong?

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recommendations! Published in 2019 at "Physics Education"

DOI: 10.1088/1361-6552/ab525d

Abstract: Light emitting diodes have been used to determine Planck's constant in introductory physics laboratories. One common method relies on the energy of the light emitted by the LED and its relation to the energy gap… read more here.

Keywords: energy; physics; leds could; determining planck ... See more keywords

Perturbative stability analysis of deformable charged bodies revealing the mathematical origin of Planck constant

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recommendations! Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad42db

Abstract: This article considers elementary particles like electrons as finitely sized deformable bodies and analyzes the classical mechanics of their interior continuum. The consequent findings answer a long-standing question in physics by computing Planck constant mathematically.… read more here.

Keywords: planck constant; stability; analysis; mechanics ... See more keywords

The first determination of the Planck constant with the joule balance NIM-2

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recommendations! Published in 2017 at "Metrologia"

DOI: 10.1088/1681-7575/aa7a65

Abstract: The National Institute of Metrology (NIM, China) proposed a joule balance method to measure the Planck constant in 2006, and built the first prototype NIM-1 to verify its principle with a relative uncertainty of 8.9… read more here.

Keywords: joule balance; planck constant; nim;