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 ...

For nearly three full centuries, the most accurate way that humanity kept track of time was through the pendulum clock. From its initial development in the 17th century until the invention of ...

Examining the clock, Saff noticed something particularly remarkable: a grasshopper escapement. All pendulum clocks have an escapement, a swinging mechanism that pushes the pendulum at a steady ...

In 1656, however, he made his greatest contribution as a scientist and inventor: the pendulum clock. where T is the pendulum's period, L is the length of the pendulum, and g is the gravitational ...

One that still manages to make an impression is the grandfather clock, a vertically imposing timekeeper that feels more like furniture. A pendulum marks time; the case, often ornate, serves as a ...

If a ticking clock is the heartbeat of a home, a little arrhythmia is not uncommon. Old clocks can be fussy, especially when moved from their longstanding positions or relocated to a different ...

John Harrison, one of the world’s greatest clockmakers, claimed to have designed the perfect pendulum clock in the mid-18th century. Instead of being celebrated, Harrison’s plans were ...

Designed 300 years ago but completed only now, this chronometer officially became “the most accurate mechanical clock with a pendulum swinging in free air”, certified by Guinness World Records.