What is "chronozoom"

ChronoZoom is a free open source project that visualizes time on the broadest possible scale from the Big Bang to the present day. Conceived by Walter Alvarez and Roland Saekow and developed by the department of Earth and Planetary Science at the University of California, Berkeley in collaboration with Microsoft Research and Moscow State University, Alvarez unveiled the first ChronoZoom prototype at UC Berkeley's 2010 Faculty Research Lecture. That demo is available to the public online, and a second version rewritten in HTML5 is now available and open source. ChronoZoom was inspired by the study of Big History, and it approaches the documentation and visualization of time and history in the same way that Google Earth deals with geography. ChronoZoom allows users to see the true scale of time over cosmic, geologic, biological and social periods.