Topic
Pendulum clock
About: Pendulum clock is a research topic. Over the lifetime, 161 publications have been published within this topic receiving 1241 citations. The topic is also known as: pendulum clocks.
Papers published on a yearly basis
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Papers
TL;DR: The history of synchronization goes back to the 17th century when the famous Dutch scientist Christiaan Huygens reported on his observation of synchronization of two pendulum clocks which he had invented shortly before.
Abstract: Many natural and human-made nonlinear oscillators exhibit the ability to adjust their rhythms due to weak interaction: two lasers, being coupled, start to generate with a common frequency; cardiac pacemaker cells fire simultaneously; violinists in an orchestra play in unison. Such coordination of rhythms is a manifestation of a fundamental nonlinear phenomenon—synchronization. Discovered in the 17th century by Christiaan Huygens, it was observed in physics, chemistry, biology and even social behaviour, and found practical applications in engineering and medicine. The notion of synchronization has been recently extended to cover the adjustment of rhythms in chaotic systems, large ensembles of oscillating units, rotating objects, continuous media, etc. In spite of essential progress in theoretical and experimental studies, synchronization remains a challenging problem of nonlinear sciences. 1. Historical perspective The history of synchronization goes back to the 17th century when the famous Dutch scientist Christiaan Huygens reported on his observation of synchronization of two pendulum clocks which he had invented shortly before. This invention of Huygens essentially increased the accuracy of time measurement and helped him to tackle the longitude problem. During a sea trial, he observed the phenomenon that he briefly described in his memoirs Horologium Oscillatorium (The Pendulum Clock, or Geometrical Demonstrations Concerning the Motion of Pendula as Applied to Clocks) [1]:
168 citations
Book•
1 Jan 1988
TL;DR: In this article, a case study examines the interrelationship between mathematics and physics in the work of one of the major figures of the Scientific Revolution: the Dutch mathematician, physicist, and astronomer, Christian Huygens (1629-1695).
Abstract: This case study examines the interrelationship between mathematics and physics in the work of one of the major figures of the Scientific Revolution: the Dutch mathematician, physicist, and astronomer, Christian Huygens (1629–1695). Joella Yoder details the creative interaction that led Huygens to invent a pendulum clock that theoretically beat absolutely uniform time, to measure the constant of gravitational acceleration, to analyze centrifugal force, and to create the mathematical theory of evolutes. In the second half of the book, Dr Yoder places Huygens's work in the context of his time by examining his relationship with other scientists and the priority disputes that sometimes motivated his research. The role of evolutes in the history of mathematics is analyzed; the reception of Huygens's masterpiece, the Horologium Oscillatorium of 1673, is described; and finally, the part that Christian Huygens played in the rise of applied mathematics is addressed.
128 citations
TL;DR: A modern version of the classical Huygens’ experiment on synchronization of pendulum clocks is introduced and it is demonstrated that the coupled clocks exhibit ‘sympathetic’ motion, i.e. the pendula of the clocks oscillate in consonance and in the same direction.
Abstract: This paper introduces a modern version of the classical Huygens' experiment on synchronization of pendulum clocks. The version presented here consists of two monumental pendulum clocks--ad hoc designed and fabricated--which are coupled through a wooden structure. It is demonstrated that the coupled clocks exhibit 'sympathetic' motion, i.e. the pendula of the clocks oscillate in consonance and in the same direction. Interestingly, when the clocks are synchronized, the common oscillation frequency decreases, i.e. the clocks become slow and inaccurate. In order to rigorously explain these findings, a mathematical model for the coupled clocks is obtained by using well-established physical and mechanical laws and likewise, a theoretical analysis is conducted. Ultimately, the sympathy of two monumental pendulum clocks, interacting via a flexible coupling structure, is experimentally, numerically, and analytically demonstrated.
109 citations
Book•
23 Nov 2009TL;DR: In the twenty-first century, we take the means to measure time for granted, without contemplating the sophisticated concepts on which our time scales are based as discussed by the authors, and the evolution of concepts of time and methods of time keeping up to the present day.
Abstract: In the twenty-first century, we take the means to measure time for granted, without contemplating the sophisticated concepts on which our time scales are based. This volume presents the evolution of concepts of time and methods of time keeping up to the present day. It outlines the progression of time based on sundials, water clocks, and the Earth's rotation, to time measurement using pendulum clocks, quartz crystal clocks, and atomic frequency standards. Time scales created as a result of these improvements in technology and the development of general and special relativity are explained. This second edition has been updated throughout to describe twentieth- and twenty-first-century advances and discusses the redefinition of SI units and the future of UTC. A new chapter on time and cosmology has been added. This broad-ranging reference benefits a diverse readership, including historians, scientists, engineers, educators, and it is accessible to general readers.
64 citations
TL;DR: In this paper, a pendulum clock animation was presented at either normal speed or as highly sped up version, and it was found to affect distribution of attention and understanding of the clock's functioning.
Abstract: An experimental study examined temporal manipulation of presentation speed as instructional design strategy. In a between subject design, an animation of a mechanical system, a pendulum clock, was presented at either normal speed or as highly sped up version. Presentation speed was found to affect distribution of attention and understanding of the clock's functioning. Think aloud protocols were analysed for mentions of clock parts as an attention indicator, and for statements about the functions of crucial clock parts. Verbal reports from the fast condition contained more statements about the weight, which is a central part of the clocks' driving mechanism. Written descriptions of the clock produced after presentation included more correct concepts about the key components in the fast condition. For complex dynamic subject matter at least, temporal manipulation of presentation speed seems to provide instructional designers with a way to increase attention to relevant parts and thereby facilitate understanding. Copyright © 2007 John Wiley & Sons, Ltd. Language: en
63 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 3 |
| 2020 | 7 |
| 2019 | 3 |
| 2018 | 3 |
| 2017 | 2 |
| 2016 | 8 |