Homepage
RefNoPP/22/1
Previous numbersPP/54/1
LevelItem
TitlePaper, 'On the colours of sky light, sun light, cloud light, and candle light' by William de Wiveleslie Abney
Date1893
DescriptionAbney writes: 'The author has made several comparisons of the above lights throughout the different parts of their spectra, and has been able to verify their correctness by means of templates rotating in the spectrum of electric light, as described in Part II, “Colour Photometry,” ‘Phil. Trans.,’ 1889. It seemed, however, that it would be useful if the colours of these lights could be expressed in single wave-lengths, together with the amount of added standard white light, the latter being expressed in terms of the luminosity of the dominant colour, in accordance with the method brought before the Royal Society in ‘Proc. Roy. Soc.,’ 1891. When measuring light from the sky, a beam from the zenith or other desired part was reflected through a blackened tube into a darkened room in which the colour patch apparatus (“Colour Photometry,” Abney and Festing, 1886) was placed, and the image of the end of the tube was focussed on to the front surface of a cube, the front surface of which was coated with zinc white, its background being black velvet.'

Annotations in pencil and ink.

Subject: Optics

Received 9 May 1893. Read 1 June 1893.

A version of this paper was published in volume 54 of the Proceedings of the Royal Society as 'On the colours of sky light, sun light, cloud light, and candle light'.
Extent6p
FormatManuscript
PhysicalDescriptionInk and graphite pencil on paper
Digital imagesView item on Science in the Making
AccessStatusOpen
RelatedMaterialDOI: 10.1098/rsta.1888.0017
DOI: 10.1098/rspl.1893.0041
Fellows associated with this archive
CodePersonNameDates
NA6454Abney; Sir; William de Wiveleslie (1843 - 1920)1843 - 1920
Add to My Items
    Papers of Colin Pillinger

    Papers of Colin Pillinger

    Useful Links

    Collection highlights

    Browse the records of some of our collections, which cover all branches of science and date from the 12th century onwards. These include the published works of Fellows of the Royal Society, personal papers of eminent scientists, letters and manuscripts sent to the Society or presented at meetings, and administrative records documenting the Society's activities since our foundation in 1660.

    Papers of Robert Boyle
    Papers of Robert Boyle
    Early Letters
    Early Letters
    New Letter Books
    New Letter Books
    Papers of Colin Pillinger
    Papers of Colin Pillinger
    Browse Collections

    The Royal Society

    The Royal Society is a Fellowship of many of
    the world's most eminent scientists and is the
    oldest scientific academy in continuous existence.
    Registered charity number 207043

    Website design ©CalmView



    CONTACT US

    + 44 207 451 2500
    (Lines open Mon-Fri, 9:00-17:00. Excludes bank holidays)

    6-9 Carlton House Terrace, London SW1Y 5AG

    Email Us →

    SUBSCRIBE

    Subscribe to our newsletters to be updated with the
    latest news on innovation, events, articles and reports.

    Subscribe →

    © CalmView