That big grandfather clock in the library might be an impressive piece of mechanical ingenuity, and an even better example of fine cabinetry, but we’d expect that the accuracy of a pendulum timepiece ...

SARASOTA — This clock doctor makes house calls. When Larry Geraci goes out to service a grandfather or other heirloom clock, he wheels in his hard-sided case, filled with specialized tools. He ...

Pendulum clocks, a big advance over the hourglasses and sundials humans once peered at, remained the most precise timekeeping technology until the early 1900s. Based on Galileo’s discovery that ...

Here’s how to build a pendulum-controlled clock which can be made really accurate. Retro? – yes, but an interesting project all the same. You’ll need a spare quartz clock which must be adapted by ...

Projects can often spiral, not down or up, but out. For [Derek] he started playing around with a 3D printed escapement mechanism and thought it was a wonderful bit of engineering. But with a simple ...