{"version":"1.0","type":"link","title":"Pendulum clock - Newikis","description":"A pendulum clock is a clock that uses a swinging weight known as a pendulum as its timekeeping element. The pendulum is an approximate harmonic oscillator that swings in a time interval that depends on its length, and that resists swinging at other rates. From its invention in 1656 by Christiaan…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/8/8c/Galileo_Pendulum_Clock.jpg","thumbnail_width":250,"thumbnail_height":401}