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Relativity, Theory Of


See Featured 4 Resources
Einstein's Big Idea tells the story behind the world's most famous equation, E = mc2. Learn about its discovery and legacy. Meet scientists whose experiments laid the groundwork. Read about the unknown...  (Public Broadcasting Service, supported by National Science Foundation)
Gravity Probe B is a "relativity gyroscope" experiment designed to test two unverified predictions of Albert Einstein's general theory of relativity (1916): that the presence of a mass in space, such...  (National Aeronautics and Space Administration)
World Year of Physics 2005 celebrates the centennial of the publication of four strange research papers -- written by a 26-year-old patent clerk -- that revolutionized how we think about light, matter, energy...  (National Science Foundation)
Astronomy and Space looks at research into fundamental questions: Where did everything come from? What is the universe made of, and how does it work? What is our place in the cosmos? Are we alone...  (National Science Foundation)
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