In 1878—before Einstein was born, before quantum mechanics, before we knew that our galaxy was one among many—a well-known physicist named Phillip von Jolly told young Max Planck, a student ...

Related: 'Stranger Things': How Realistic Are Parallel Worlds? Named for physicist Max Planck, this fundamental physical constant links the amount of energy carried by a photon with its frequency.

That’s pretty much all you need for instruments to determine Planck’s constant to a decent degree of precision, the way that [poblocki1982]’s did. There’s a little more to it, of course ...

Knowing this constant will let NIST redefine the kilogram. Researchers at the National Institute of Standards and Technology (NIST) have made their most precise determination yet of Planck’s ...

It is just the cool factor. [Stoppi] shows us several neat ways to measure Planck’s constant (German language, Google Translate link) using things like LEDs, solar cells, and common test equipment.

This letter indicates the interpretations of Planck's constant (h) and of the fine-structure constant (α) which follow from this principle 1.

A better option is to develop a new definition based on a mathematical foundation that can be calculated anywhere, and the Planck constant fits the bill. This formula allows researchers to find ...

Physicists in the US say that they have used publicly available data from global positioning system (GPS) satellites to put a limit on how much Planck’s constant might vary from place to place. Their ...

Planck’s constant is one of the most important numbers in science. It describes the relationship between the energy and frequency of an electromagnetic wave in an equation known as the Planck ...