The physics of why the first clock in America failed - Big Think

A clock, designed and built in Europe, ran hopelessly at the wrong rate when brought to America. The physics of gravity explains why.

The Physics Of Why Timekeeping First Failed In The Americas

The Physics Of Why Timekeeping First Failed In The Americas

Big Ben, History, Renovation, & Facts

Time rules everything around you. It's also an illusion : NPR

Time lords: The clocks that rule our world

christiaan Huygens 時計

christiaan Huygens 時計 - その他

Scientific method - Wikipedia

7 Epic Fails Brought to You By the Genius Mind of Thomas Edison