The Oldest Star in the Universe. Why is Stephen Hawking a big deal? - Sixty Symbols. Common Physics Misconceptions. Best Film on Newton's Third Law. Ever. The Higgs Boson, Part I. The Higgs Boson, Part II: What is Mass? Higgs Boson Part III: How to Discover a Particle. How far is a second? Can We Go the Speed of Light? (The Principle of Relativity) There is no pink light. The Speed of Light in Glass. Misconceptions About Temperature.