The HyperPhysics website is a rather intriguing site where visitors can examine thematic segments in order to learn about dozens of physics-related concepts, such as atomic mass units, Avogadro's number, and acceleration. Hosted by the Department of Physics and Astronomy at Georgia State University, the site offers visitors the ability to join a live study group in order to share information and problems related to physics. Visitors can also use the list on the right-side of the page to look for specific topics of note. Clicking on each of these topics will bring up a definition of each term or topic, complete with graphs, diagrams, and in some instances videos. People with a sense of whimsy and fun will appreciate the "crushing Coke can" video as it is illustrative and edifying.