Showing results for "Planck constant"

• a variation of Planck's constant.

Planck constant

British  

noun

1. h. a fundamental constant equal to the energy of any quantum of radiation divided by its frequency. It has a value of 6.62606876 × 10 ^–34 joule seconds See also Dirac constant

---

Example Sentences

See Examples For:

Planck constant

Examples include the mass and electric charge of an electron and the Planck constant, which plays a central role in quantum mechanics, the branch of physics that describes matter and energy at extremely small scales.

From Science Daily ● Oct. 11, 2026

Their values are determined only by fundamental constants of nature: the electron charge and the Planck constant.

From Science Daily ● Mar. 1, 2026

The kilogram will be bootstrapped from the Planck constant.

From The New Yorker ● Nov. 15, 2018

For instance, the National Institute of Standards and Technology, based in Maryland, has developed a new generation of its machines that are specifically designed to measure the Planck constant.

From Slate ● Jun. 30, 2016

But a being that can contemplate the meaning of the Planck constant or engage in a critique of pure reason may have no home beyond the third rock from the Sun.

From Scientific American ● Feb. 24, 2012

Random Word

Spin the wheel and learn a new word!

---