Every 12 hours, the stepper motor moves a lever and slowly stops the pendulum over the course of a dozen or so seconds, silencing the clock movement. Twelve hours later, the motor turns again ...

The clock’s quartz movement kept time accurately, and the pendulum added a nice touch of tradition. However, we noticed that the clock’s materials were not the most durable, and the pendulum ...

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 ...