The prominent computer science Danny Hillis envisions a 10,000-year clock, one that will put current perceptions of the future into a different perspective. This dream is now becoming a reality, and this Web site discusses many of the design principles that must be considered to make it fool proof. Items that need to be decided include what to display, how to display it, how to accurately time the clock (with little to no human intervention), how to power the clock, and the list goes on. Clearly, this is no simple task. Many engineering and scientific problems have to be addressed. This site has many more resources about this fascinating project.