Physics is the study of the underlying laws and mechanisms explaining how the universe works. Most of what we do in daily life is based on a principle or law of physics—dealing with forces, motion, ...

The Big Ideas: What Is Reality? Effective theories in physics can help us measure and examine reality, despite the many things we do not yet know. By Lisa Randall Dr. Randall is a physicist. This ...

Ask a bunch of physicists to explain a quantum experiment and you’re unlikely to get the same description twice. Everyone agrees that the mathematical framework of quantum mechanics is peerless at ...