In the strange world of quantum mechanics, objects can exist in several states at once. This concept, called superposition, is one of the most puzzling features of quantum theory. A particle, for ...

Expanding Universe Simulation (Friedmann-Lemaître Model) This project implements a numerical simulation of an expanding universe based on the Friedmann-Lemaître equations. It allows exploring various ...

(via Science Asylum) Believe it not, Einstein originally thought the universe was static. It would take Alexander Friedmann to correct him. Here are the Friedmann equations, explained simply.

Dark circles are one of the most common skin complaints, said Dr. Daniel Friedmann, a dermatologist and clinical research director at Westlake Dermatology in Austin, Texas.

Abstract Einstein’s field equation is a highly general equation consisting of sixteen equations. However, the equation itself provides limited information about the universe unless it is solved with ...

To address these issues we introduce Exhaustive Symbolic Regression (ESR), which systematically and efficiently considers all possible equations—made with a given basis set of operators and up to a ...

To illustrate the power of ESR we apply it to a catalog of cosmic chronometers and the Pantheon+ sample of supernovae to learn the Hubble rate as a function of redshift, finding ~40 functions (out of ...