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20-2, 023-12, 1880s, Cabinet Card, Sir George Stokes (1819-1903) Physicist For Sale
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20-2, 023-12, 1880s, Cabinet Card, Sir George Stokes (1819-1903) Physicist:
$79.96
20-2, 023-12, 1880s, Cabinet Card, Sir George Stokes (1819-1903) Physicist 20-2, 023-12, 1880s, Cabinet Card, Sir George Stokes (1819-1903) Physicist Click images to enlarge Description You are offerding on an original Antique 1880\'s Cabinet Card Photograph, Sir George Stokes (1819-1903) Physicist, about 65+ years old.
To see all of my \"Cabinet Cards\" click here.
Family Tree (see last image).
More Info:
Sir George Gabriel Stokes, 1st Baronet (13 August 1819 – 1 February 1903) was an Irish-born British mathematician and physicist. His major contributions are in fluid mechanics, optics and geodesy.
The youngest son of the Reverend Gabriel Stokes and Elizabeth Haughton, herself the daughter of the Reverend John Haughton, George Gabriel Stokes was strongly influenced by evangelical Protestantism.
In 1841, he received his B.A. with Honours from the University of Cambridge and began a career as a researcher. Influenced by his former teacher William Hopkins, he devoted himself to the study of viscous fluids. In 1845 he published the results of his work on the motions of fluids in his thesis On the theories of the internal friction of fluids in motion. His mathematical approach describing the flow of an incompressible Newtonian fluid in three-dimensional space, by adding a viscosity force from Euler\'s equations (General Principles of Fluid Motion, 1755), is the origin of the Navier–Stokes equations. All of his research was summarised in his treatise Report on recent research in Hydrodynamics, published in 1846, a founding text of hydrodynamics.
He used his experiments on the motion of a pendulum in a fluid to study the variations of gravitation on the surface of the earth and published On the variation of gravity at the surface of the earth in 1849, which makes it \"One of the initiators of geodesy.
In 1849 he became professor in the chair of mathematics at the same university. Elected to the Royal Society in 1851, he was its secretary for thirty years and president from 1885 to 1890. Only Isaac Newton before him had held all three positions.
In 1852, in On the change of refrangibility of light, he explains the phenomenon of fluorescence by noting that some materials, such as fluorite (CaF2) and uralin, emit visible light when exposed to ultraviolet radiation, which has a shorter wavelength. The increase in wavelength is called the Stokes displacement.
He was awarded the Smith Prize in 1841, the Rumford Medal in 1852 and the Copley Medal in 1893.
In 1857, he married Mary Robinson, daughter of astronomer Thomas Romney Robinson, with whom he had five children. (ref. Wikipedia)
Back has Photographer Information.
Photographer: Ernest Barraud, 263, Oxford St., London
Card size: 4.25\" x 6.5\". #20-2, 023-12
The Cabinet Card was a style of photograph which was widely used for photographic portraiture after 1870. It consisted of a thin photograph mounted on a card typically measuring 108 by 165 mm (4+1⁄4 by 6+1⁄2 inches). The carte de visite was displaced by the larger cabinet card in the 1880s. In the early 1860s, both types of photographs were essentially the same in process and design. Both were most often albumen prints, the primary difference being the cabinet card was larger and usually included extensive logos and information on the reverse side of the card to advertise the photographer’s services. However, later into its popularity, other types of papers began to replace the albumen process. Despite the similarity, the cabinet card format was initially used for landscape views before it was adopted for portraiture. Some cabinet card images from the 1890s have the appearance of a black-and-white photograph in contrast to the distinctive sepia toning notable in the albumen print process. These photographs have a neutral image tone and were most likely produced on a matte collodion, gelatin or gelatin bromide paper. Sometimes images from this period can be identified by a greenish cast. Gelatin papers were introduced in the 1870s and started gaining acceptance in the 1880s and 1890s as the gelatin bromide papers became popular. Matte collodion was used in the same period. A true black-and-white image on a cabinet card is likely to have been produced in the 1890s or after 1900. The last cabinet cards were produced in the 1920s, even as late as 1924. Owing to the larger image size, the cabinet card steadily increased in popularity during the second half of the 1860s and into the 1870s, replacing the carte de visite as the most popular form of portraiture. The cabinet card was large enough to be easily viewed from across the room when typically displayed on a cabinet, which is probably why they became known as such in the vernacular. However, when the renowned Civil War photographer Mathew Brady first started offering them to his clientele towards the end of 1865, he used the trademark \"Imperial Carte-de-Visite.\" Whatever the name, the popular print format joined the photograph album as a fixture in the late 19th-century Victorian parlor. (ref. Wikipedia)
If you have any questions about this item or anything I am saleing, please let me know. Card Cond: VG-VG/EX (some wear), Please see scans for actual condition, (images 3, 4 & 5 are for reference only). This Cabinet Card would make a great addition to your collection or as a Gift (nice for Framing).Visit My store
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20-2, 023-12, 1880s, Cabinet Card, Sir George Stokes (1819-1903) Physicist $79.96
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