How do time zones work? Perhaps equally important is why do we even have time zones? The BBC News group has created this interactive and fun exploration of time zones for the general public. After a brief introduction, visitors can continue on to a globe complete with tabs that read, "Where time collides", "Split time", "The politics of time", and "What time is it in space?" Clicking on each of...

Everyday Mysteries: Fun Facts from the Library of Congress offers an explanation for how an hourglass measures time. Learn about the careful calibration of this age-old timepiece and what factors affect the accuracy of the sand clock. The website provides links to related websites that provide a brief history of the hourglass and sell custom hourglasses. The U.S Official Time website, which is...

Produced by the University of Missouri - St. Louis, this website is an educational "resource for solving low and high speed constant acceleration problems." Physics students can find quantitative tools to handle time dilation, relativist acceleration, and curved space-time. Containing networks of numerous concepts dealing with physics, chemistry, and math, the site helps students understand how...