Ball Lightning
Ball lightning is a reported phenomenon in which a glowing, floating sphere of light appears, usually during thunderstorms. Many people claim to have…
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The Nature of Time
Time is one of the most familiar parts of our experience, yet what it really is remains one of the deepest and most contested questions in physics…
The Anthropic Principle
The anthropic principle concerns the striking observation that the universe appears remarkably fine tuned for the existence of life. Many of the…
The Multiverse
The multiverse is the hypothesis that our universe is only one of many, perhaps even infinitely many, other universes. It is taken seriously by many…
Interpretations of Quantum Mechanics
Quantum mechanics is the most successful physical theory ever devised, predicting the behavior of atoms, light, and subatomic particles with…