Grandfather clocks with atomic clock precision

[Theophylact]

A clock mod by people with way too much [extremely precise] time on their hands.

[Angela]

I think this is really interesting. What they said about the fragile mechanisms makes sense; the less stress on them, the better.

[DutchMaster]

Whow incredible that they manage to combine ancient technology with nowadays electronics.

[leprechaun_40]

Interesting use of modern tech to save ancient tech, way cool.