In this lecture, a physics professor describes wormholes in space and other ideas that might allow travel into the past or future, based on special and general relativity and quantum physics. The physicist explains how...

The introduction to this intriguing exercise and article begins "If a ball bounces an infinite number of times, it must take an infinite amount of time to finish bouncing!" This piece appeared in The Journal of Online...

In 1985 an experiment, designed to unravel the carbon chemistry in red giant stars, revealed the existence of C60 or buckminsterfullerene (a special form of carbon, known also as bucky balls). This video lecture...

The C-SPAN in the classroom website is geared toward teachers of political science - or specifically U.S. Government. The site is split into six segments: Principles of Government, the Constitution, Political...

This site offers articles and information about cabling solutions and components for fiber and copper communications, voice, data, and video systems. Cable installation and repair issues cover coaxial, twisted-pair,...