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Acquisition of knowledge

John J. Videler

in Avian Flight

Published in print:
2006
Published Online:
September 2007
ISBN:
9780199299928
eISBN:
9780191714924
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199299928.003.0001
Subject:
Biology, Ornithology

This chapter discusses the development of the understanding of bird flight and the physical laws governing flight, taking Aristotle’s philosophy and observations as a starting point. From the ... More


Variations on a Riefler bob shape

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/9780198529712.003.0012
Subject:
Physics, History of Physics

Riefler's bob shape consists of two truncated cones, back-to-back. It is a shape with low air drag, and works well inside the clock case, where front-to-back space is frequently limited. A 1988 study ... More


The Inheritance

Peter J. Westwick

in Into the Black: JPL and the American Space Program, 1976-2004

Published in print:
2006
Published Online:
October 2013
ISBN:
9780300110753
eISBN:
9780300134582
Item type:
chapter
Publisher:
Yale University Press
DOI:
10.12987/yale/9780300110753.003.0001
Subject:
History, History of Science, Technology, and Medicine

This chapter looks at the beginnings of the Jet Propulsion Laboratory (JPL), which began as a graduate-student rocket project at Caltech in the 1930s. At the time, Caltech was already a center for ... More


The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930

David Bloor

Published in print:
2011
Published Online:
September 2013
ISBN:
9780226060941
eISBN:
9780226060934
Item type:
book
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226060934.001.0001
Subject:
History, History of Science, Technology, and Medicine

Why do aircraft fly? How do their wings support them? In the early years of aviation, there was an intense dispute between British and German experts over the question of why and how an aircraft wing ... More


Introduction: The Question to Be Answered

David Bloor

in The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930

Published in print:
2011
Published Online:
September 2013
ISBN:
9780226060941
eISBN:
9780226060934
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226060934.003.0001
Subject:
History, History of Science, Technology, and Medicine

This book discusses the question of why airplanes fly, but the problem is approached in a slightly unusual way. The author describes the history behind the technical answer to the question about the ... More


The Air as an Ideal Fluid: Hydrodynamics and the Foundations of Aerodynamics

David Bloor

in The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930

Published in print:
2011
Published Online:
September 2013
ISBN:
9780226060941
eISBN:
9780226060934
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226060934.003.0003
Subject:
History, History of Science, Technology, and Medicine

This chapter discusses fluid dynamics and how it provided the intellectual resources that were common to both the British and German work on lift and drag, although the stance toward that common ... More


Lanchester’s Cyclic Theory of Lift and Its Early Reception

David Bloor

in The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930

Published in print:
2011
Published Online:
September 2013
ISBN:
9780226060941
eISBN:
9780226060934
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226060934.003.0005
Subject:
History, History of Science, Technology, and Medicine

This chapter lays the foundations for an explanation of the negative response to circulation theory. Given that the circulation theory later came to be accepted as the correct account of lift, this ... More


The physics of animal locomotion

Christoffer L. Johansson, Florian T. Muijres, and Anders Hedenström

in Animal Movement Across Scales

Published in print:
2014
Published Online:
November 2014
ISBN:
9780199677184
eISBN:
9780191785696
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199677184.003.0013
Subject:
Biology, Animal Biology, Ecology

In this chapter the physics behind animal movement, the adaptations found in locomotion to generate forces, and the mechanisms reducing the cost of transport are discussed. The ability to minimize ... More


Coupled Transport. Laminar Boundary Layers

Etienne Guyon, Jean-Pierre Hulin, Luc Petit, and Catalin.D. Mitescu

in Physical Hydrodynamics, 2nd Edn

Published in print:
2015
Published Online:
March 2015
ISBN:
9780198702443
eISBN:
9780191772153
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198702443.003.0010
Subject:
Physics, Theoretical, Computational, and Statistical Physics

The combined effects of diffusion, convection, and of chemical reactions, involve length scales which characterize their relative efficiency. The boundary layer around a solid body appears in laminar ... More


Flight

John D. Altringham

in Bats: From Evolution to Conservation

Published in print:
2011
Published Online:
May 2015
ISBN:
9780199207114
eISBN:
9780191810015
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199207114.003.0002
Subject:
Biology, Animal Biology

This chapter examines the evolution of flight in bats. It looks into some basic aerodynamics principles such as aerofoils, flight theory, and the mechanics of flapping flight, and applies them to ... More


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