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 ...

A new theoretical approach is proposed to explain the nature of the well-known narrow and intense optical J-band of ...

Only the kilogram is defined by an actual object, until NIST and the International Committee of Weights and Measures defines it as a function of the Planck constant. How do you measure the Planck ...

After a review carried out in 2019, these units are now associated with constants of nature, such as the speed of light [c] and Planck's constant [h]," says Matsas. According to the criteria used ...

The Universe is expanding faster than ever, and recent findings fuel the ongoing debate among cosmologists. For decades, scientists have been trying to measure the rate at which the Universe is ...

The universe expands...through what? Experts might have a suggestion. Expansion may be happening at a faster rate than ...