http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (streaming video file)
In relativity theory, contrary to popular views, reality is what's not relative: that is, what doesn't depend on one's frame of reference. See how space and time constitute one such pair, merging into a four-dimensional space-time. Mass and energy similarly join, related by Einstein's famous E = mc2.
Features: Richard Wolfson Ph.D., Dartmouth College
Originally produced by The Teaching Company/The Great Courses in 2011.