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         Ramsden Jesse:     more detail
  1. Jesse Ramsden (1735-1800) (Science, Technology and Culture, 1700–1945) by Anita McConnell, 2007-12-21
  2. Jesse Ramsden

101. COSTRUTTORI Strumenti Nautici - Nautical Instruments Makers - RAMSDEN Jesse
Institute, di strumenti ottici, astronomici, matematici
http://www.sullacrestadellonda.it/strumenti/ramsden.htm
Costruttori
RAMSDEN Jesse, 1735-1800

Costruttore rinomato e patentato dall'Astronomical Institute, di strumenti ottici, astronomici, matematici Attivo dal 1762 alla morte Membro della Royal Society, insignito nel 1792 della Medaglia Copley
Sedi a Londra: Strand; Haymarket; 199 Piccadilly
Allievo di Mark BURTON, ebbe numerosi apprendisti e soci di fama
Clifton

102. Eyepiece
ramsden eyepiece. Another old design, invented by the English instrumentmakerJesse ramsden (1735-1800) in 1782. In this case, the two plano-convex lens
http://www.daviddarling.info/encyclopedia/E/eyepiece.html
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eyepiece
A combination of lenses, also known as an ocular , used to magnify the image formed by the objective of a telescope . In practice, eyepieces contain at least two lenses: the field lens , which faces the objective and collects the light from it, and the eyelens , which faces the observer and magnifies the image. A field stop (a circular aperture) inside the eyepiece limits the field of view , helping to give it a sharp edge. There are various types of eyepiece design, from very simple achromatic lenses to complex eyepieces with many optical elements. Usually, the more complex an eyepiece, the more optical corrections, and the better eye relief and wider field of view. On the other hand, adding many glass surfaces dims the image and may also increase internal reflections, or “ghosting.” OPTICS AND OPTICAL PHENOMENA
Huygenian eyepiece One of the earliest compounds lenses, introduced by Christiaan

103. Chain Chains Measurement Length Called Customary Ordered **a
also called the engineer s or ramsden sJesse ramsden ( October 6, 1735 November 5, ramsden was born at Salterhebble near Halifax, Yorkshire.
http://www.economicexpert.com/a/Chain.htm
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A chain can be any of the following:

104. Biography-center - Letter R
www.treasuretroves.com/bios/ Ramsay.html; ramsden, Jessewww -history.mcs.st-and.ac.uk/~history/Mathematicians/ramsden.html; Ramsey, Frank
http://www.biography-center.com/r.html
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  • R. M., Williams www.abc.net.au/btn/australians/rmwilliams.htm
  • www-history.mcs.st-and.ac.uk/~history/Mathematicians/R ado.html
  • Ra ft, George members.rogers.com/kburnage/georgeraft.html
  • Rabbitt, Eddie elvispelvis.com/ed dierabbitt.htm
  • Rabi, Isidor www.pbs.org/wgbh/amex/bomb/peopleeve nts/pandeAMEX80.html
  • Rabiah ibn Kab, www.usc.edu/dept/MSA/history/biographies/sahaabah/bio.RABIAH_IBN_ KAB.html
  • Rabin, Yitzhak

105. - Port Cities
open frame design to reduce weight and wind resistance when in use. CreatorJesse ramsden. Date c1785. Credit line National Maritime Museum, London
http://www.portcities.org.uk/london/server/change/storyInPictures/contentType/Co
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Intrument makers on the Thames
2 of 5 Pictures Repro ID: Description: The sextant was first made in the late 1850s by the London instrument maker John Bird, then one of the finest makers in the city. He was commissioned to produce an instrument similar to the octant with a wider field of measurement. Like the octant, the sextant enables the angular distance between two points to be measured, for instance the Sun and the horizon or two stars. This example was made by one of the great instrument makers of the 18th century, Jesse Ramsden. The sextant is usually made of brass and has a very open frame design to reduce weight and wind resistance when in use. Creator: Jesse Ramsden Date: Credit line: National Maritime Museum, London Search
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106. Ritratto Ramsden

http://www.astropa.unipa.it/museo/quadreria/ramsden.htm
INAF - OSSERVATORIO ASTRONOMICO DI PALERMO GIUSEPPE S. VAIANA Jesse Ramsden
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Quadreria

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