Bubble Chamber Site
Photo © CERN larger image
This spiral track was made in a bubble chamber--a particle detector used in the 1970s and 1980s--and it was made by an electron that was knocked out of a hydrogen atom by one of the upward-moving particles. To learn more about this track, visit the CERN Gallery of Bubble Chamber (BC) Pictures, go to "Gallery of BC Pictures," and click on "electron."
Through Einstein's Eyes
Visit this site for a simulation of what you would see if travel were possible at light speed. You can take a rollercoaster ride, observe a tram moving near the speed of light, and tour of the solar system. Elsewhere in the site, you can explore the physics of special relativity. To learn more about Einstein, visit the Center for the History of Physics' online exhibits and go to "Albert Einstein--Image and Impact."