The 10,000 Year Clock is up and running — and now that the plans are online, you can construct your own nigh-immortal timepiece
The Long Now Foundation’s 10,000 Year Clock — a beautifully crafted machine designed to run, with minimal human input, for millennia — has been keeping time for almost 10 years; it’s currently on loan to the Science Museum of London. But if you’d like your own, Long Now has released the schematics to their wondrous chronometer — which Neal Stephenson had a hand in designing and then wove into his new novel, Anathem.
https://gizmodo.com/the-10-000-year-old-clock-that-inspired-neal-stephenson-5027398
So if you’d like to endear yourself to the forthcoming robot overlords, or make sure the zombies will be able to keep perfect time, get to building.