User contributions for 103.95.164.3

20 June 2024

• 19:0619:06, 20 June 2024 diff hist −1,461 Pendulum clock ==Torsion pendulum== {{main|Torsion pendulum clock}} Also called torsion-spring pendulum, this is a wheel-like mass (most often four spheres on cross spokes) suspended from a vertical strip (ribbon) of spring steel, used as the regulating mechanism in torsion pendulum clocks. Rotation of the mass winds and unwinds the suspension spring, with the energy impulse applied to the top of the spring. The main advantage of this type of pendulum is its low energy use; with a period of 12–15 secon... Tags: Reverted section blanking Mobile edit Mobile web edit
• 19:0519:05, 20 June 2024 diff hist −10,136 Pendulum clock ==Gravity-swing pendulum== {{multiple image | align = right | image1 = Pendulum-with-Escapement.png | caption1 = Pendulum and anchor escapement from a grandfather clock | width1 = 102 | image2 = Grandfather clock pendulum.png | caption2 = Grandfather clock pendulum | width2 = 82 | image3 = Mercury pendulum.png | caption3 = Mercury pendulum | width3 = 91 | image4 = Tidens naturlære fig22.png | caption4 = Gridiron pendulum | width4 = 84 }} The pendulum in most cl... Tags: Reverted section blanking Mobile edit Mobile web edit
• 19:0519:05, 20 June 2024 diff hist −3,187 Pendulum clock ==Mechanism== thumb|right|upright | Ansonia Clock model mechanism: c. 1904. The mechanism which runs a mechanical clock is called the movement. The movements of all mechanical pendulum clocks have these five parts:<ref>Milham 1945, pp. 74, 197–212</ref> * A power source; either a weight on a cord or chain that turns a pulley or sprocket, or a mainspring. * A gear train (wheel train) that steps up the speed of the... Tags: Reverted section blanking Mobile edit Mobile web edit
• 19:0419:04, 20 June 2024 diff hist −13,000 Pendulum clock '''pendulum clock''' is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates. From its invention in 1656 by Christiaan Huygens, inspired by Galileo Galilei, until the 1930s, the pendulum clock was the world's most precise timekeeper, accounti... Tags: Reverted Mobile edit Mobile web edit
• 19:0319:03, 20 June 2024 diff hist −3,135 Pendulum clock Clock built by Edward T. Hall in the 1990s<ref>{{cite web |last=Hall |first=E.T. |title=The Littlemore Clock |date=June 1996 |work=Horological Science |publisher=Nat'l Assoc. of Watch and Clock Collectors |pages=fig. 7b |url=http://www.hsn161.com/HSN/hsn_article.php}}</ref> (donated in 2003 to the National Watch and Clock Museum, Columbia, Pennsylvania, USA). The largest pendulum clocks, exceeding {{convert|30|m|ft|abbr=on}}, were built in Geneva (1972) and [[Gd... Tags: Reverted Mobile edit Mobile web edit
• 19:0119:01, 20 June 2024 diff hist −1,503 Pendulum clock Xcfd Tags: Reverted references removed Mobile edit Mobile web edit

3 June 2024

• 10:0810:08, 3 June 2024 diff hist −4,832 Clock No edit summary Tags: Reverted Mobile edit Mobile web edit
• 10:0510:05, 3 June 2024 diff hist −1,476 Clock No edit summary Tags: Reverted Mobile edit Mobile web edit