The density of the Earth was measured with an error of less than 20% in 1776 by measuring the tiny deflection of a pendulum due to the gravitational attraction of a nearby mountain. en.wikipedia.org/wiki/Sch…
Today I learned of the Atmos clock, a mechanical torsion pendulum clock which gets the energy it needs to run from temperature and air pressure changes in the environment, and can run for many years without human intervention. A temperature variation of only 1 degree is sufficient for two days operation. en.wikipedia.org/wiki/Atm…
Pennies are used to adjust the time in London's Big Ben clock tower. A single penny can change the pendulum's centre of mass and alter the time by 0.4s per day. bigbenfacts.co.uk/facts/
With the invention of the pendulum clock in 1656, Christiaan Huygens increased the best accuracy of clocks from 15 minutes deviation a day to around 15 seconds a day. en.wikipedia.org/wiki/Pen…
Due to changes in local gravity, a pendulum clock accurate at sea level will lose around 16 seconds per day if moved to an altitude of 4000 feet. en.wikipedia.org/wiki/Pen…
The Taipei 101 skyscraper uses a 728 ton steel tuned mass damper (basically a giant pendulum) to counter motion of the building since it is so close to a fault line. atlasobscura.com/places/t…
Putting a pendulum clock up a tall building will cause it to keep time at a different pace due to slight changes in gravitational attraction. en.wikipedia.org/wiki/Pen…
In 1774, an experiment was conducted to determine the density of the Earth by measuring the deflection of a pendulum from the mass of a nearby mountain. The results were within 20% of the accepted value today. en.wikipedia.org/wiki/Sch…
There is a small stack of penny coins on the pendulum of Big Ben. The mechanism is so precise that adding or removing a single coin changes the speed of the clock by .4 seconds/day. en.wikipedia.org/wiki/Big…
The Great Clock (which rings Big Ben) has it's speed maintained by altering the number of old pennies stacked on the pendulum. A single coin can change the clock's speed by 0.4 seconds a day reuters.com/article/2009/…
Taipei 101, the sixth tallest building in the world, contains a 660-tonne pendulum called a damper sphere (the largest in the world) to sustain the largest earthquake likely to occur in a 2,500 year cycle. en.wikipedia.org/wiki/Tai…
"Daniel," the famous text-to-speech voice and UK voice of Apple's Siri, is voiced by Jon Briggs, one the best known commercial voices in the UK. Known as the voiceover statistician in BBC's The weakest Link, and the narrator for the start of the drum and bass song "Blood Sugar" by Pendulum. en.wikipedia.org/wiki/Jon…
Adding/removing a single penny to the 300kg pendulum in Big Ben's clock tower adjusts the clock's speed (and therefore time) by 0.4 seconds per day en.wikipedia.org/wiki/Big…
Almost 350 years ago, Dutch inventor and scientist Christiaan Huygens observed that two pendulum clocks hanging from a wall would synchronise their swing over time. theguardian.com/science/2…
Knife Party is a reimagining of Pendulum en.wikipedia.org/wiki/Kni…
Jesuits had contributed to the development of pendulum clocks, pantographs, barometers, reflecting telescopes and microscopes, to scientific fields as various as magnetism, optics and electricity. They observed the colored bands on Jupiter’s surface, the Andromeda nebula and Saturn’s rings. en.wikipedia.org/wiki/Lis…
One man is solely responsible for the theory that light travels in waves, refined time-keeping accuracy with the invention of pendulum clocks, and discovered Saturn's moon Titan. en.wikipedia.org/wiki/Chr…
The first facsimile or fax machine was invented by Scottish inventor Alexander Bain in 1843. He used a clock to synchronize the movement of 2 pendulums for line-by-line scanning of a message. The movements of the pendulum were translated to on-off pulses that were transmitted by telegraph cable en.wikipedia.org/wiki/Ale…
The clockwork mechanism belonging to Big Ben is adjusted using pennies. Adding or removing a penny on the pendulum changes the clock speed by 0.4 seconds per day. parliament.uk/about/livin…
Two metronomes or pendulum clocks standing on the same hard surface will synchronize their oscillations. learner.org/courses/mathi…
A University removed a pendulum art piece because naked students imitating Miley Cyrus. abcnews.go.com/blogs/ente…
The Shortt-Synchronome clock, a pendulum clock, was accurate to 1 second in 12 years. en.wikipedia.org/wiki/Sho…
The etymology of the phrase "put a penny on it" refers to speeding up the pendulum used to operate the clock tower housing "Big Ben" and is still done to this day. scheong.wordpress.com/201…
The person that is the voice of Siri, is also in The Weakest Link and Pendulum's "Blood Sugar" en.wikipedia.org/wiki/Jon…
A giant pendulum inside the former worlds tallest building helps it withstand earthquakes en.wikipedia.org/wiki/Tai…
; Knife Party is a side project of Pendulum. en.wikipedia.org/wiki/Rob…
The guy who sings in deadmau5' "ghosts n stuff" was a main producer in pendulum, and of course in knife party en.m.wikipedia.org/wiki/R…
The most accurate pendulum clock was so sensitive that it could detect the slight changes in gravity due to tidal distortions in the solid Earth caused by the passage of the Sun and Moon overhead en.wikipedia.org/wiki/Sho…
SimΓ©on Poisson's studies on the motion of a pendulum arose from childhood when his nurse would hang him on a nail to keep him out of trouble and protect him from rodents. maths.tcd.ie/pub/HistMath…
Today I learned of the Foucault pendulum. A simple and easily observable experiment to show the rotation of the earth. en.wikipedia.org/wiki/Fou…
There was an 18th-century experiment to determine the mean density of the Earth by using a pendulum. en.wikipedia.org/wiki/Sch…

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.