The Drayson Problem

Language: English

Published by Wm Pollard, Exeter, 1922

  • Softcover
  • Used
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Seller: Ken Spelman Books Ltd (ABA, ILAB, PBFA)., York, United KingdomKen Spelman Books Ltd (ABA, ILAB, PBFA).

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Softcover

Condition: Used - Good

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Item description from seller

BARLEY, Alfred H. The Drayson Problem. His important astronomical discovery. 48pp. Original printed wrappers, with rust marks from the staples and small rust hole to the upper wrapper. 8vo. Exeter: Wm. Pollard. 1922. ~ Alfred Wilks Drayson (1827–1901) was an English army officer, writer and astronomer. He was a personal friend of Arthur Conan Doyle, who dedicated to him the short story collection The Captain of the Polestar. He published scientific theories, not accepted by later authors. His ‘problem’ had its origin solely in the somewhat loose language of certain text-books which described the motion of the pole of the equator as circular, the pole of the ecliptic being in the centre. This description would be correct if only the solar and lunar precessions were concerned, but planetary perturbations cause the plane of the ecliptic (and hence its pole) to shift, thus causing a variation in the radius of the circle. Drayson, without carefully studying the evidence for the shifting ecliptic, asserted that it was really fixed among the stars, and that the centre of the north pole's motion was 6° away from the ecliptic pole, thus bringing about a very large change in the obliquity, which he supposed to be near its minimum at present. It would reach 350 at its maximum, when Drayson considered an Ice- age would occur.…

Seller Inventory # 161660

Bibliographic details

Title
The Drayson Problem
Author
BARLEY, Alfred H.
Publisher
Wm Pollard, Exeter
Publication year
1922
Condition
Good
Binding
Printer Wrapper
Language
English
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Ken Spelman Books Ltd (ABA, ILAB, PBFA).

York, United Kingdom

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AbeBooks seller since August 2, 1997

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Fine, Rare and Antiquarian as well as Academic Books on a very wide range of subjects, particularly Art, Architecture, Design, Landscape Gardening, Aesthetics, Manuscripts, The Grand Tour,and 18th century Literature & History. Established 1948. Member of ABA, ILAB and PBFA. Owner: Tony & Nicki Fothergill “Note for US Buyers: From August 29, 2025, all UK-origin shipments to the United States are subject to customs processing. Printed books remain duty-free under US law, but some states may charge sales tax or handling fees on delivery. Ephemera and posters are also usually exempt when properly classified. Please be aware that delivery times may be slightly longer due to customs."…

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Ken Spelman Books Ltd (ABA, ILAB, PBFA).

United Kingdom