This web site, by Rob Salgado at the Syracuse University Department of Physics, contains a detailed introduction to relativity. It integrates textual explanations of relativity concepts with diagrams and animations to...

With a variety of information and resources freely available, this site is a valuable tool for anyone interested in better understanding and promoting the health benefits of physical activity for those with disabilities....

In modern organisms, there is a division of labor between two kinds of molecule: DNA, which stores and transmits genetic information, and proteins, which do all the work. They are connected by the genetic code, whereby...

The transit of Venus across the disk of the sun is a rare astronomical event that has transfixed astronomers for centuries. June 8, 2004 marked the last occurrence of this event. Due to its extreme rarity (occurring...

This radio broadcast discusses the prospects for a Theory of Everything, why we need one, how we might achieve one, and what it would mean if we did. At the end of the last century, some scientists were predicting that...