The concept of local realism, which holds that physical processes occurring in one location cannot be directly affected by processes in another location, was a fundamental principle of classical physics. However, the principles of quantum mechanics indicate that the universe may not be locally real Quantum mechanics holds that the properties of particles, such as […]

There are many methods used to measure the speed of light. One is to measure the time light rays require to hit a mirror at a known distance and back. This is how the Fizeau–Foucault apparatus works, which was developed by Hippolyte Fizeau and Léon Foucault. Fizeau’s setup consists of a beam of light directed […]

The double-slit experiment is a famous physics experiment that demonstrates the wave-particle duality of matter, which suggests that particles like electrons can exhibit both wave-like and particle-like behavior depending on how they are observed. The double-slit experiment shows that the behavior of particles like electrons are dependent on the way they are being observed, and […]