(via Sabine Hossenfelder) Zero-point energy is one of the most intriguing phenomena of quantum mechanics. Because quantum particles are also waves, they must always have more than zero energy.

Try as they might, scientists can’t truly rid a space or an object of its energy. But what “zero-point energy” really means is up for interpretation. Suppose you want to empty a box. Really, truly ...

Electrodynamics, founded on Maxwell’s equations, describes how electric and magnetic fields interact with charges and currents. In classical theory, accelerated charges emit radiation continuously, ...