The first Friedmann equation is the most important of the two, since it's the most easy and straightforward to tie to observations. On one side, you have the equivalent of the expansion rate ...

All equations crystallize something important about the universe, whether it be the relationship between mass and energy, the gravitational attraction between two bodies or the sides of a triangle.

Wait! There's something even more important about Maxwell's equations. You can use these to show that an oscillating electric field creates a changing magnetic field, and this changing magnetic ...

“The 7 Most Important Equations for Your Retirement,” by Moshe A. Milevsky (Wiley 2012). I was fortunate enough — courtesy of Dan Slater and the Foley brothers of Core Income ...

Argentina-born mathematician Luis Caffarelli has won the 2023 Abel Prize — one of the most coveted awards in mathematics — for his work on equations that are important for describing physical ...