Detecting or constraining the possible time variations of fundamental physical constants is an important step toward a complete understanding of basic physics and hence the world in which we live. A ...

Constants are supposed to be, well, constant. In physics there are a number of fundamental constants, such as the speed of light, Planck's constant, and the charge of an electron that are essential to ...

The fundamental constants that govern the laws of nature are being determined with increasing accuracy. A new paper outlines the proceedings from this year's Workshop on the Determination of the ...

A fascinating paper published in Physical Review Letters this week reports that one of the fundamental constants of our universe – the fine-structure constant (α) – may in fact vary depending on where ...

In a new study, scientists show that two fundamental physical constants govern how runny a liquid can be. Their equation relates the minimal value of elementary viscosity (the product of viscosity and ...

Essential for life: this illustration shows how fundamental constants of nature set the fundamental lower limit for liquid viscosity. (Courtesy: thehackneycollective.com) The values of the fundamental ...

As cheat sheets go, it is a long one. Every four years, a task force of the Committee on Data for Science and Technology (CODATA), headquartered in Paris, releases a short-hand description of the ...

A new study of distant galaxies is adding a fresh perspective to the debate over whether a fundamental physical constant has actually changed over time. The work suggests the number has not varied in ...

Just a few numbers could be used to predict the sizes of objects large and small in the universe, researchers say. The paper, published Jan. 27 in the journal Proceedings of the National Academy of ...