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Finding a pendulum’s axis of rotation

Robert James Matthys

in Accurate Clock Pendulums

Published in print:
2004
Published Online:
January 2010
ISBN:
9780198529712
eISBN:
9780191712791
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198529712.003.0004
Subject:
Physics, History of Physics

To determine a pendulum's axis of rotation, a small piece of paper is temporarily mounted on the front of the pendulum rod at the rod's top end, so that the paper extends up an inch or two past the ... More


Does a pendulum’s axis of rotation shift with amplitude?

Robert James Matthys

in Accurate Clock Pendulums

Published in print:
2004
Published Online:
January 2010
ISBN:
9780198529712
eISBN:
9780191712791
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198529712.003.0005
Subject:
Physics, History of Physics

This chapter describes an experiment to determine whether a pendulum's axis of rotation moves when the swing amplitude is increased. This issue presupposes that the pendulum has a flat spring type of ... More


Nonlinear Finite-Amplitude Dynamics

Gary A. Glatzmaier

in Introduction to Modeling Convection in Planets and Stars: Magnetic Field, Density Stratification, Rotation

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691141725
eISBN:
9781400848904
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691141725.003.0004
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter modifies the numerical code by adding the nonlinear terms to produce finite-amplitude simulations. The nonlinear terms are calculated using a Galerkin method in spectral space. After ... More


The Speech Technology Perspective

Mark Tatham and Katherine Morton

in Expression in Speech: Analysis and Synthesis

Published in print:
2003
Published Online:
September 2007
ISBN:
9780199250677
eISBN:
9780191719462
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199250677.003.0012
Subject:
Linguistics, Phonetics / Phonology

This chapter describes a variety of current synthesis systems, including formant and concatenative systems, and the problems associated with unit selection. The success of these systems is discussed ... More


INTRODUCTION TO THE QUANTUM MECHANICAL TIME-INDEPENDENT SCATTERING THEORY I: ONE-DIMENSIONAL SCATTERING

Pier A. Mello and Narendra Kumar

in Quantum Transport in Mesoscopic Systems: Complexity and Statistical Fluctuations. A Maximum Entropy Viewpoint

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198525820
eISBN:
9780191712234
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198525820.003.0002
Subject:
Physics, Condensed Matter Physics / Materials

This chapter is devoted to basic potential scattering theory, focusing on the case of a one-dimensional conductor and an open cavity with a one-channel lead connected to it. The contents of this ... More


Nonlinearities

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0011
Subject:
Psychology, Cognitive Neuroscience

This chapter discusses the nonlinear responses of the visual system. Topics covered include threshold nonlinearity, phase nonlinearity, amplitude nonlinearity, half-wave rectification, and ... More


Demand

R. C. O. Matthews, C. H. Feinstein, and J. C. Odling‐Smee

in British Economic Growth 1856-1973: The Post-War Period in Historical Perspective

Published in print:
1982
Published Online:
November 2003
ISBN:
9780198284536
eISBN:
9780191596629
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0198284535.003.0010
Subject:
Economics and Finance, Economic History

Intermittent phases of high demand may affect the way demand keeps up with supply. The pressure of demand was obviously higher in 1951–73 than before 1914 and a fortiori higher than in the interwar ... More


Entangled states

J. C. Garrison and R. Y. Chiao

in Quantum Optics

Published in print:
2008
Published Online:
September 2008
ISBN:
9780198508861
eISBN:
9780191708640
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508861.003.0007
Subject:
Physics, Atomic, Laser, and Optical Physics

A state of two distinguishable particles is “separable” if the wavefunction is a product of single-particle wavefunctions. Schrödinger introduced the term “entangled” to describe a two-particle state ... More


AMPLITUDE EQUATIONS AND PATTERN FORMATION

Nasr M. Ghoniem and Daniel D. Walgraef

in Instabilities and Self-Organization in Materials: Volume I: Fundamentals of Nanoscience, Volume II: Applications in Materials Design and Nanotechnology

Published in print:
2008
Published Online:
May 2008
ISBN:
9780199298686
eISBN:
9780191720222
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199298686.003.0009
Subject:
Physics, Condensed Matter Physics / Materials

This chapter begins with a discussion of reduced dynamics and amplitude equations. It then discusses the generic aspects of pattern selection and stability, the effect of external fields; group ... More


Nonclassical states of light

J. C. Garrison and R. Y. Chiao

in Quantum Optics

Published in print:
2008
Published Online:
September 2008
ISBN:
9780198508861
eISBN:
9780191708640
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508861.003.0016
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter reviews theoretical and experimental aspects of non-classical states of light, e.g., squeezed states and number states. The definition of squeezed states and a review of their general ... More


Atomic Force Microscopy

C. Julian Chen

in Introduction to Scanning Tunneling Microscopy: Second Edition

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199211500
eISBN:
9780191705991
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199211500.003.0015
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses atomic force microscopy (AFM), focusing on the methods for atomic force detection. Although the force detection always requires a cantilever, there are two types of modes: the ... More


Atomic-Scale Imaging

C. Julian Chen

in Introduction to Scanning Tunneling Microscopy: Second Edition

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199211500
eISBN:
9780191705991
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199211500.003.0007
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses the imaging mechanism of STM and AFM at the atomic scale. Experimental facts show that at atomic resolution, tip electronic states play a key role. Analytic theoretical ... More


Nanomechanical Effects

C. Julian Chen

in Introduction to Scanning Tunneling Microscopy: Second Edition

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199211500
eISBN:
9780191705991
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199211500.003.0008
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses the effect of force and deformation of the tip apex and the sample surface in the operation and imaging mechanism of STM and AFM. Because the contact area is of atomic ... More


CALABI–YAU GEOMETRIES

Marcos Mariño

in Chern-Simons Theory, Matrix Models, and Topological Strings

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198568490
eISBN:
9780191717604
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198568490.003.0005
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter discusses a particular class of Calabi-Yau geometries characterized by being non-compact, focusing on non-compact toric Calabi-Yau threefolds. These are threefolds that have the ... More


THE TOPOLOGICAL VERTEX

Marcos Mariño

in Chern-Simons Theory, Matrix Models, and Topological Strings

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198568490
eISBN:
9780191717604
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198568490.003.0009
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter explains the cut-and-paste approach to toric Calabi-Yau manifolds developed previously with the large-N duality relating Chern-Simons theory and topological strings, to find a building ... More


REPRINT THE SURFACE STATISTICS OF A GRANULAR AGGREGATE

S. F. Edwards and D. R. Wilkinson

in Stealing the Gold: A celebration of the pioneering physics of Sam Edwards

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198528531
eISBN:
9780191713415
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198528531.003.0022
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This paper examines the problem of the surface fluctuations in a settled granular material. A simple model is given which describes the process by which a particle settles and comes to rest on the ... More


Waves and electromagnetic radiation

Dennis Sherwood and Jon Cooper

in Crystals, X-rays and Proteins: Comprehensive Protein Crystallography

Published in print:
2010
Published Online:
January 2011
ISBN:
9780199559046
eISBN:
9780191595028
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199559046.003.0004
Subject:
Physics, Crystallography: Physics

This chapter outlines the fundamental physical terms used to define wave motion such as wavelength, frequency, velocity, amplitude, wave vector, and period from first principles. It also introduces ... More


Comparison of Head Movement Strategies among Mammals

James H. Fuller

in The Head-Neck Sensory Motor System

Published in print:
1992
Published Online:
March 2012
ISBN:
9780195068207
eISBN:
9780199847198
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195068207.003.0013
Subject:
Neuroscience, Sensory and Motor Systems

In this chapter, a variety of saccadic eye-head movements evoked by visual and auditory stimuli are reviewed. Variation in head movement strategies resulting from methodology as well as the subject's ... More


Fourier syntheses

William Clegg

in Crystal Structure Analysis: Principles and Practice

Published in print:
2009
Published Online:
September 2009
ISBN:
9780199219469
eISBN:
9780191722516
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199219469.003.0008
Subject:
Physics, Crystallography: Physics

A diffraction pattern is the (forward) Fourier transform of a crystal structure, obtained physically in an experiment and mathematically from a known or model structure (providing both amplitudes and ... More


Lattices

E. J. N. Wilson

in An Introduction to Particle Accelerators

Published in print:
2001
Published Online:
January 2010
ISBN:
9780198508298
eISBN:
9780191706363
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508298.003.0003
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

The lattice described in the chapter is the periodic pattern of focusing and bending magnets that a particle experiences on each turn. Hills Equation describes the vertical and horizontal transverse ... More


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