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Introduction

Nigel Daw

in How Vision Works: The Physiological Mechanisms Behind What We See

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199751617
eISBN:
9780199932375
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199751617.003.0001
Subject:
Psychology, Cognitive Neuroscience, Cognitive Psychology

The human visual system consists of a system for inspecting objects, starting with the fovea in the retina, and a system for noticing which objects should be inspected, and directing the eyes to look ... More


Privacy, Patience, and Pictures: First Methodological Interlude (§§248, 251–2)

Stephen Mulhall

in Wittgenstein's Private Language: Grammar, Nonsense and Imagination in “Philosophical Investigations”, §§ 243–315

Published in print:
2006
Published Online:
January 2007
ISBN:
9780199208548
eISBN:
9780191709067
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199208548.003.0005
Subject:
Philosophy, Philosophy of Language

This chapter examines the internal structure of the (interrupted) reflection on the status of the conclusions established in §246. Wittgenstein offers two pairs of propositions that he explicitly ... More


The Physics of Coordinate Transformations

Harvey R. Brown

in Physical Relativity: Space-time structure from a dynamical perspective

Published in print:
2005
Published Online:
September 2006
ISBN:
9780199275830
eISBN:
9780191603914
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199275831.003.0002
Subject:
Philosophy, Philosophy of Science

This chapter discusses the physics of coordinate transformations. Topics covered include coordinatization of space-time, inertial coordinate systems, the linearity of inertial coordinate ... More


James’ suspension spring equations

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/9780198529712.003.0016
Subject:
Physics, History of Physics

In 1983, K. James published two useful but rather complicated equations whose purpose was to help design the suspension spring. The equations show the effect that different spring lengths, widths, ... More


Pendulum rod materials

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/9780198529712.003.0021
Subject:
Physics, History of Physics

Over time, several different materials have been used for the pendulum rod such as steel, wood, and invar. The best material is quartz because of its proven stability and low thermal expansion. Steel ... More


The heat treatment of invar

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/9780198529712.003.0022
Subject:
Physics, History of Physics

Even though invar is the most common material used for the pendulum rod in a good clock, it is still a poor material for the purpose because of its relatively poor dimensional stability over time ... More


The instability of invar

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/9780198529712.003.0023
Subject:
Physics, History of Physics

Almost since its invention in 1896, invar has been known to be a dimensionally unstable pendulum rod material. A few articles have been published over the years, trying to address the dimensional ... More


Position sensitivity along the pendulum rod

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/9780198529712.003.0024
Subject:
Physics, History of Physics

Every clock's pendulum needs a fine trim to adjust its rate to the desired value. This is frequently done by adding small weights to a weight pan, which is usually located about one-third of the way ... More


Effect of the pendulum rod on Q

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/9780198529712.003.0026
Subject:
Physics, History of Physics

A pendulum rod's air drag has a significant effect on the pendulum's Q. Many years ago, an experiment was carried out to determine the effect of bob shape on a pendulum's Q. The results showed that a ... More


Better accuracy from simple pendulums

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/9780198529712.003.0001
Subject:
Physics, History of Physics

This chapter deals with simple pendulums and with several things that can be done to improve their accuracy. Most of the items have only a minor effect on accuracy, but they add up. The pendulum ... More


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


Some practical properties of quartz

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/9780198529712.003.0006
Subject:
Physics, History of Physics

The big attraction of quartz as a pendulum material is its good dimensional stability over time. Stability over time is the biggest and most needed characteristic in an accurate pendulum. In contrast ... More


Transient temperature effects in a pendulum

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/9780198529712.003.0009
Subject:
Physics, History of Physics

This chapter describes some transient temperature measurements made on a pendulum with a quartz pendulum rod. Time offset error occurs because different parts of the pendulum change temperature at ... More


The Mesopotamian ‘Rod and Ring’: Icon of Righteous Kingship and Balance of Power between Palace and Temple

Kathryn E. Slanski

in Regime Change in the Ancient Near East and Egypt: From Sargon of Agade to Saddam Hussein

Published in print:
2007
Published Online:
January 2012
ISBN:
9780197263907
eISBN:
9780191734687
Item type:
chapter
Publisher:
British Academy
DOI:
10.5871/bacad/9780197263907.003.0003
Subject:
Classical Studies, Asian and Middle Eastern History: BCE to 500CE

This chapter examines the so-called ‘rod and ring’, the identified symbol of the balance of power between the two premier institutions of ancient Mesopotamia, the palace and the temple. It proposes ... More


Development of primate rod structure and function

Anne Fulton, Ronald M. Hansen, Elizabeth Dorn, and Anita Hendrickson

in Infant Vision

Published in print:
1996
Published Online:
March 2012
ISBN:
9780198523161
eISBN:
9780191724558
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198523161.003.0003
Subject:
Neuroscience, Sensory and Motor Systems

The rod-mediated sensitivity of infants is lower than that of adults while the scotopic sensitivity for full-field stimuli of infants approaches adult values earlier than those psychophysical ... More


Stimulus Duration Affects Rod Influence on Hue Perception

Steven L. Buck and Roger Knight

in Normal and Defective Colour Vision

Published in print:
2003
Published Online:
April 2010
ISBN:
9780198525301
eISBN:
9780191584947
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198525301.003.0020
Subject:
Psychology, Cognitive Neuroscience

This chapter explores the effects of simultaneous rod and cone stimulation on rod hue influences. It shows that the balance among rod hue biases varies with test-stimulus duration. There appears to ... More


Seeing the Light: Vision

Peter Atkins

in Reactions: The private life of atoms

Published in print:
2011
Published Online:
November 2020
ISBN:
9780199695126
eISBN:
9780191918445
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199695126.003.0031
Subject:
Chemistry, Physical Chemistry

Now for that extraordinary and wonderful sense, vision. A lot of physics and physiology goes on between the object observed and the focus of its image on the retina of the eye, but the interface of ... More


Doctor Franklin

Edwin S. Gaustad

in Benjamin Franklin

Published in print:
2006
Published Online:
October 2011
ISBN:
9780195305357
eISBN:
9780199850662
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195305357.003.0003
Subject:
History, American History: early to 18th Century

In his Proposal for Promoting Useful Knowledge Among the British Plantations in America, Franklin laid out a vision for the society of grandeur and breadth. Knowledge, he thought, should be put to a ... More


Einstein Agonists: Weyl and Reichenbach

Thomas Ryckman

in The Reign of Relativity: Philosophy in Physics 1915-1925

Published in print:
2005
Published Online:
April 2005
ISBN:
9780195177176
eISBN:
9780199835324
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0195177177.003.0004
Subject:
Philosophy, Philosophy of Science

Hermann Weyl and Hans Reichenbach stood on opposite sides in a debate that ostensibly turned on whether rigid rods and ideal clocks do or should play an epistemologically fundamental role in GTR. ... More


Post-Vedic Brahmanical Dharma

Alf Hiltebeitel

in Dharma: Its Early History in Law, Religion, and Narrative

Published in print:
2011
Published Online:
September 2011
ISBN:
9780195394238
eISBN:
9780199897452
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195394238.003.0005
Subject:
Religion, Hinduism

Chapter 5 is about how Brahmanical authors seek to shape consensus in a post‐Vedic society affected by Buddhism and other nāstika traditions or “heterodoxies” by composing dharma texts in new genres, ... More


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