The "Clock of the Long Now," which will tell time for the next 10,000 years, has cost $42 million to build so far. The huge mechanical clock ticks once per year and chimes once per millennium. Jeff ...

We aren’t ashamed to admit it, but we like clocks. We’ve built quite a few and clock projects show up regularly in the pages of Hackaday. But there is one clock that is among the most famous in the ...