THE interesting article by Mr. A. E. Bell on the “Horologium Oscillatorium” in NATURE of August 30 rather suggests that this was Huygens' first book on the pendulum clock. He published a description, ...

Q: My husband and I purchased a beautiful Howard Miller pendulum wall clock in 1994. It worked well until a few months ago, when it began adding two chimes, one at five minutes before the hour and one ...

[Keith] got his hands on a few grandfather clocks. Apparently the price tag is greatly reduced if you are able to get them second-hand. The mechanical timepieces require weekly winding, which is a ...