Mr. Baker is a college senior and the author of “How to Rule the World: An Education in Power at Stanford University.” See ...

Tenets of quantum mechanics and special relativity, among other theoretical ideas, lead inexorably to string theory.

If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by ...

Tax cuts for the middle and working classes, and tax hikes for the rich. What's behind this trend? We ask Democratic Senator Chris Van Hollen to explain his bill that eliminates federal income tax for ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...