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Sundials and Scratch Dials
Sunny Hours

Sundials tell the local apparent time, time by the sun.

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Here in The Lakes we are about 3 degrees west of London, so the time is 12 minutes late; and an hour more late in Summer Time. And there is a further small correction due to the Equation of Time; if you want to know about these things then read a book, try Waugh 1973. It is possible to make very accurate sundials, the Gibb's heliochronometer is one such.


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Dalton Castle, castle, Dalton Town with Newton, SD22627393 -- Sundial. (photo 18.6.2011) (BUT31.jpg)
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High Green Hill, building/s, Stapleton, NY53006995 -- Gnomon of a sundial. (photo 1.6.2012) (BWP96.jpg)
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Westnewton School, school, Westnewton, NY13524412 -- Sundial. (photo 16.9.2011) (BVJ15.jpg)
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The Sundial, inn, Broughton, NY07793175 -- Innsign - a sundial; an unsatisfying designer sign. (photo 22.10.2008) (BPT35.jpg)
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..., sundial, Milburn, NY652290 -- (photo 2.6.2010) (BSV59.jpg)
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..., sundial, Milburn, NY652290 -- (photo 2.6.2010) (BSV58.jpg)
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..., sundial, Nateby, NY776059 -- Oblique vertical sundial. (photo 30.6.2008) (BPJ58.jpg)
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Sunny Brow House, building/s, Over Staveley, SD46739844 -- Sundial:- 'MCMLXXXVII' (photo 9.9.2011) (BVI05.jpg)
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Threlkeld CofE Primary School, school, Threlkeld, NY31932543 -- Front entrance and sundial. (photo 18.9.2011) (BVJ80.jpg)


Chaucer:::::various quotations, eg Parson's Prologue, and introduction to the Man of Laws Tale

Cole, T: 1935: Classification of Church Scratch Dials

Cole, T: 1935: Origin and Use of Church Scratch Dials

Cousins, F W: 1969: Sundials ...: Baker (London)

Daniel, C StJ H: 1986: Sundials: Shire Publications (Princes Risborough, Buckinghamshire)

Desargues, G: 1659: Universal Way of Dyalling ... and Making ... Sundials:: Clockmaker's Company library

Diderot: 1777: Encyclopedie ou Dictionaire des Sciences: (Geneva)

Dymock, R G V: 1930=1932 (?): Scratch Dials on Wiltshire Churches: Wiltshire Archaeological Magazine: vol.45: pp.291-299,533-534

Earle, Alice Morse: 1902: Sun-dials and Roses of Yesterday: Macmillan (London)

Eden, H K F & Lloyd, E: 1900: Book of Sundials, The: George Bell (London):: new version of Gatty 1872

Emerson: 1770 (c): Dialling: (London)

Ferguson, James: 1843: Principles and Art of Dialling & Lectures on Select Subjects in Mechanics, Hydrostatics, Pneumatics, Optics and Astronomy (in): Tegg, Thomas (London):: lecture 10

Foster (?): 1654: Elliptical or Azimuthal Horologiogrpahy: (London)

Gatty, Arthur, Mrs: 1872: Book of Sundials, The: Bell and Daldy (London):: ALSO SEE Eden and Lloyd 1900

Green, Arthur R: 1926: Sundials: Macmillan (New York)

Henslow, T G W: 1914: Sundial Booke, Ye

Herbert, A P, Sir: 1967: Sundials Old and New

Higgins, Kathleen: 1953: Classification of Sundials: Annals of Science: 9: 342 358

Horne, Ethelbert: 1917: Primitive Sundials or Scratch Dials

Hyatt, Alfred H: 1903: Book of Sundial Mottoes, A: Scott-Thaw (New York, United States)

Landon, Perceval: 1904: Helio-tropes ...: Methuen (London):: ALSO SEE Parmenter, J 1625

Leadbetter: 1773: Mechanick Dialling: Caslon (London)

Leybourn, William: 1682: Dialling: (London)

Masters, J N: 1921: Amusing Reminiscences of Victorian Times

Mayall, R Newton & Mayall, Margaret W: 1938: Sundials: Hale Coshman and Flint (Boston)

Parmenter, J: 1625: Helio-tropes or New Posies for Sundials:: Clockmaker's Company library; SEE Landon, P 1904

Price, Derek J: 1957: Precision Instruments to 1500::: SEE Singer et al 1957

Price, Derek J: 1964:: Technology and Culture: 5 (1)

Price, Derek J: 1968: Vistas in Astronomy: Pergamon Press (Oxford): vol.9

Rohr, Rene R J: 1970: Sundials, History, Theory and Practice: (Toronto)

Shakespeare, William::::: various quotations, eg Henry Vi part III, 2, v; As You Like It, II, Vii

Singer, C J & Holmyard, E J & Hall, A R & Williams, T I: 1957: History of Technology: Oxford University Press: vol.3: pp.582-601

Smith, Alan: 1975: Clocks and Watches: Connoiseur (London):: pp.14-18; ISBN 0 90030 508 8

Stebbins, Frederick A: 1961 (April): Medieval Portable Sundial, A: Journal of the Royal Astronomical Society of Canada

Strong, C L: 1966 (May): ... Sundial ...: Scientific American:: the Amateur Scientist column pp.130-134

Strong, C L: 1967 (November): ... Unusual Kind of Sundial: Scientific American:: pp.138-139

Sturmy, Samuel, Capt: 1683: Art of Dialling, The: (London)

Ward, F A B: 1970 (4th edn) & 1936: Time Measurement: HMSO & Science Museum:: ISBN 0 901 80502 5

Waugh, Albert E: 1973: Sundials, their Theory and Construction: Dover (New York):: ISBN 0 486 22947 5

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