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- Henry_Joseph_Grayson abstract "Henry Joseph Grayson (9 May 1856 – 21 March 1918) was a British-born Australian nurseryman and scientist, best known as the designer of a machine for ruling diffraction gratings.Grayson was born in Worrall, near Sheffield, Yorkshire, England, son of Joseph Grayson, a Master Cutler, and his wife Fanny, née Smith. Grayson came of a family of market gardeners, and travelled to New Zealand in the early 1880s. After returning to England and marrying Elizabeth Clare on 11 August 1886, the couple soon migrated to Victoria (Australia) where Grayson worked as a nursery gardener. Becoming interested in science he joined the Field Naturalists Club of Victoria, studied botany and did some work on the diatoms, a group of minute plants. Grayson attended meetings of the Royal Microscopical Society and developed a talent for preparing microscope slides. Before 1894 he had constructed a machine for making micrometer rulings on glass, the results being very good for that time. In 1897 some very beautiful work Grayson had done in cutting sections of plants led to his being given a position in the physiology department of the University of Melbourne under Professor C. J. Martin.He was afterwards transferred to the geology department, and in December 1901 accompanied Professor F. T. Gregory on his expedition to Central Australia. In the preface to The Dead Heart of Australia Gregory paid a special tribute \"To my assistant Mr Grayson on whom much of the hard work of the expedition fell\". In 1910 Grayson was associated with Daniel James Mahony in the preparation of a paper on \"The Geology of the Camperdown and Mount Elephant Districts\" (No. 9 in the Memoirs of the Geological Survey of Victoria), and in the same year, while working at the university under professor E. W. Skeats, who succeeded Gregory, Grayson made a highly efficient apparatus for preparing rock sections, a description of which will be found in the Proceedings of the Royal Society of Victoria for the year 1911.In the meanwhile Grayson had been perfecting his fine ruling work. Grayson had by then succeeded in creating 120,000 diffractions lines to the inch (4,700 lines per mm). From this time onwards much of his time was given to the preparation of a dividing engine for ruling diffraction gratings. Grayson was transferred to the Natural Philosophy department of the university under Professor T. R. Lyle in 1913 and was allowed to give his full-time to the machine. In July 1917 he read a paper before the Royal Society of Victoria giving a full description of the machine, which was published with several plates in the society's Proceedings for that year. In the same year Grayson was awarded the David Syme Research Prize of £100 by the University of Melbourne. Grayson died in Clyde of heart disease leaving a widow but no children.".
- Henry_Joseph_Grayson birthDate "1856-05-09".
- Henry_Joseph_Grayson birthYear "1856".
- Henry_Joseph_Grayson deathDate "1918-03-21".
- Henry_Joseph_Grayson deathYear "1918".
- Henry_Joseph_Grayson wikiPageID "9652225".
- Henry_Joseph_Grayson wikiPageLength "4497".
- Henry_Joseph_Grayson wikiPageOutDegree "29".
- Henry_Joseph_Grayson wikiPageRevisionID "707363493".
- Henry_Joseph_Grayson wikiPageWikiLink Category:1856_births.
- Henry_Joseph_Grayson wikiPageWikiLink Category:1918_deaths.
- Henry_Joseph_Grayson wikiPageWikiLink Category:Australian_inventors.
- Henry_Joseph_Grayson wikiPageWikiLink Category:Australian_nurserymen.
- Henry_Joseph_Grayson wikiPageWikiLink Category:Australian_people_of_English_descent.
- Henry_Joseph_Grayson wikiPageWikiLink Category:Australian_scientists.
- Henry_Joseph_Grayson wikiPageWikiLink Category:English_emigrants_to_Australia.
- Henry_Joseph_Grayson wikiPageWikiLink Central_Australia.
- Henry_Joseph_Grayson wikiPageWikiLink Charles_James_Martin_(physiologist).
- Henry_Joseph_Grayson wikiPageWikiLink Clyde,_Victoria.
- Henry_Joseph_Grayson wikiPageWikiLink Daniel_James_Mahony.
- Henry_Joseph_Grayson wikiPageWikiLink Diatom.
- Henry_Joseph_Grayson wikiPageWikiLink Diffraction_grating.
- Henry_Joseph_Grayson wikiPageWikiLink Dividing_engine.
- Henry_Joseph_Grayson wikiPageWikiLink Ernest_Willington_Skeats.
- Henry_Joseph_Grayson wikiPageWikiLink Field_Naturalists_Club_of_Victoria.
- Henry_Joseph_Grayson wikiPageWikiLink Francis_Thomas_Gregory.
- Henry_Joseph_Grayson wikiPageWikiLink Market_garden.
- Henry_Joseph_Grayson wikiPageWikiLink Master_Cutler.
- Henry_Joseph_Grayson wikiPageWikiLink Mount_Elephant.
- Henry_Joseph_Grayson wikiPageWikiLink Plantsman.
- Henry_Joseph_Grayson wikiPageWikiLink Royal_Microscopical_Society.
- Henry_Joseph_Grayson wikiPageWikiLink Royal_Society_of_Victoria.
- Henry_Joseph_Grayson wikiPageWikiLink Sheffield.
- Henry_Joseph_Grayson wikiPageWikiLink Thomas_Ranken_Lyle.
- Henry_Joseph_Grayson wikiPageWikiLink University_of_Melbourne.
- Henry_Joseph_Grayson wikiPageWikiLink Victoria_(Australia).
- Henry_Joseph_Grayson wikiPageWikiLink Worrall.
- Henry_Joseph_Grayson wikiPageWikiLink Yorkshire.
- Henry_Joseph_Grayson wikiPageWikiLinkText "Henry Joseph Grayson".
- Henry_Joseph_Grayson dateOfBirth "1856-05-09".
- Henry_Joseph_Grayson dateOfDeath "1918-03-21".
- Henry_Joseph_Grayson name "Grayson, Henry Joseph".
- Henry_Joseph_Grayson shortDescription "Australian scientist".
- Henry_Joseph_Grayson wikiPageUsesTemplate Template:Authority_control.
- Henry_Joseph_Grayson wikiPageUsesTemplate Template:Persondata.
- Henry_Joseph_Grayson wikiPageUsesTemplate Template:Reflist.
- Henry_Joseph_Grayson wikiPageUsesTemplate Template:Use_dmy_dates.
- Henry_Joseph_Grayson description "Australian scientist".
- Henry_Joseph_Grayson description "Australian scientist".
- Henry_Joseph_Grayson subject Category:1856_births.
- Henry_Joseph_Grayson subject Category:1918_deaths.
- Henry_Joseph_Grayson subject Category:Australian_inventors.
- Henry_Joseph_Grayson subject Category:Australian_nurserymen.
- Henry_Joseph_Grayson subject Category:Australian_people_of_English_descent.
- Henry_Joseph_Grayson subject Category:Australian_scientists.
- Henry_Joseph_Grayson subject Category:English_emigrants_to_Australia.
- Henry_Joseph_Grayson hypernym Nurseryman.
- Henry_Joseph_Grayson type Agent.
- Henry_Joseph_Grayson type Person.
- Henry_Joseph_Grayson type Scientist.
- Henry_Joseph_Grayson type Person.
- Henry_Joseph_Grayson type Scientist.
- Henry_Joseph_Grayson type Agent.
- Henry_Joseph_Grayson type NaturalPerson.
- Henry_Joseph_Grayson type Thing.
- Henry_Joseph_Grayson type Q215627.
- Henry_Joseph_Grayson type Q5.
- Henry_Joseph_Grayson type Person.
- Henry_Joseph_Grayson comment "Henry Joseph Grayson (9 May 1856 – 21 March 1918) was a British-born Australian nurseryman and scientist, best known as the designer of a machine for ruling diffraction gratings.Grayson was born in Worrall, near Sheffield, Yorkshire, England, son of Joseph Grayson, a Master Cutler, and his wife Fanny, née Smith. Grayson came of a family of market gardeners, and travelled to New Zealand in the early 1880s.".
- Henry_Joseph_Grayson label "Henry Joseph Grayson".
- Henry_Joseph_Grayson sameAs Q5724089.
- Henry_Joseph_Grayson sameAs m.02pn64b.
- Henry_Joseph_Grayson sameAs Q5724089.
- Henry_Joseph_Grayson wasDerivedFrom Henry_Joseph_Grayson?oldid=707363493.
- Henry_Joseph_Grayson givenName "Henry Joseph".
- Henry_Joseph_Grayson isPrimaryTopicOf Henry_Joseph_Grayson.
- Henry_Joseph_Grayson name "Grayson, Henry Joseph".
- Henry_Joseph_Grayson name "Henry Joseph Grayson".
- Henry_Joseph_Grayson surname "Grayson".