- John Dollond
John Dollond (10 June 1706 - 30 November 1761 ) was an English optician . Dollond was the son of a Huguenot refugee, a silk -weaver at ...
5 KB (637 words) - 11:14, 1 December 2008
- Dollond (crater)
Dollond is a small lunar impact crater that is located in the central region of the Moon , to the north of Abulfeda crater . ...
2 KB (232 words) - 17:07, 6 August 2007
- History of the telescope
In 1765 Peter Dollond (son of John Dollond) introduced the triple objective, which consisted of a combination of two convex lenses of crown ...
53 KB (7997 words) - 03:15, 2 December 2008
- Dollond & Aitchison
Dollond & Aitchison are the United Kingdom 's longest established optician s, having been established in 1750 by Peter Dollond in Vine ...
1 KB (189 words) - 08:21, 9 September 2008
- Peter Dollond
Peter Dollond (February 24 , 1731 - July 2 , 1821 born Kensington , England ) was an English optician, the son of John Dollond . ...
4 KB (449 words) - 17:32, 18 September 2008
- George Dollond
George Dollond (June 10 ,1774 -Nov 30 ,1852 ) was an English optician who constructed optical precision instrument s used in astronomy , ...
1 KB (136 words) - 16:03, 9 June 2008
- Achromatic lens
The first patent for an achromatic doublet was awarded to John Dollond around 1758 following his independent theoretical and experimental ...
3 KB (355 words) - 10:17, 13 October 2008
- Lindsay (crater)
There is a cleft in the southeast rim that links with the slightly larger 'Dollond B' crater. The interior floor is level and nearly ...
1 KB (194 words) - 20:46, 11 June 2008
- Samuel Klingenstierna
He was the first to enunciate errors in Newton's theories of refraction, geometrical notes that were used by John Dollond in his ...
699 B (78 words) - 05:23, 21 January 2007
- Heliometer
changing the distance between two object-glasses of equal focus. John Dollond , in 1754, combined Savary's idea of the divided object-glass ...
2 KB (254 words) - 16:11, 25 November 2008
- Abulfeda (crater)
To the north is the crater Dollond . A chain of craters named the Catena Abulfeda runs between the southern rim of Abulfeda and the north ...
5 KB (473 words) - 12:14, 30 August 2008
- Francis Wollaston (priest and astronomer)
He had a private observatory with a triplet telescope by Peter Dollond. Family: He was the son of Francis Wollaston (1694-1774) and his wife ...
2 KB (249 words) - 08:45, 25 September 2008
- Image-forming optical system
In 1757 John Dollond was able to create an achromatised dioptric, which was the forerunner of the lenses used in all popular ...
1 KB (155 words) - 20:28, 29 November 2008
- Chester Moore Hall
issue8/articl5 Sphaera - Peter Dollond answers Jesse Ramsden - A review of the events of the invention of the achromatic doublet with ...
1,022 B (134 words) - 10:29, 19 September 2008
- Nathaniel Pigott
The Academy of Sciences of Caen chose him a foreign member about 1764, and he observed there, with John Dollond's six-foot achromatic ...
5 KB (752 words) - 10:10, 31 May 2008
- 1761
November 30 - John Dollond , English optician (b. 1706 ) December 23 - Alestair Ruadh MacDonnell , Scottish Jacobite spy (b. ...
6 KB (518 words) - 14:13, 30 October 2008
- George Bass (optician)
issue8/articl5 Sphaera - Peter Dollond answers Jesse Ramsden - A review of the events of the invention of the achromatic doublet with ...
1 KB (187 words) - 06:58, 1 October 2008
- 1706
June 10 - John Dollond , English optician (d. 1761 ) October 18 - Baldassare Galuppi , Italian composer (d. 1785 ) November 8 - Johann ...
5 KB (381 words) - 17:15, 21 October 2008
- List of refugees
John Dollond - inventor of the achromatic lens . He founded Dollond and Aitchison ; descended from Huguenot refugees. Albert Einstein - ...
12 KB (1736 words) - 01:46, 21 November 2008
- List of craters on the Moon, C-F
D ! : Dollond 11 km | John Dollond (1706-1761) | Donati 36 km | Giovanni Battista Donati (1826-1873) | Donna 2 km Italian female name ...
30 KB (2307 words) - 17:07, 8 August 2008
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