Useful english dictionary. 2012.
Coddington — could be Coddington, Cheshire, United Kingdom Coddington, Derbyshire, United Kingdom Coddington, Herefordshire, United Kingdom Coddington, Nottinghamshire, United Kingdom Coddington, Wisconsin, United States Coddington School, a historic school… … Wikipedia
Coddington magnifier — The cross section through the optical axis shows the grooves that limit the aberration. A Coddington magnifier is a magnifying glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the… … Wikipedia
microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… … Wikipedia
Anne Hutchinson — (July 20, 1591 – August 20, 1643) was the unauthorized Puritan minister of a dissident church discussion group and a pioneer settler in Massachusetts, Rhode Island and New Netherlands. Her brilliant mind and kindness won admiration and a… … Wikipedia
Magnifying glass — The stamp is under the examination of a magnifying glass A basic magnifying … Wikipedia
United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… … Universalium
Microfilm reader — is a device used for reading of documents stored as microform. Microform includes Flat Film, Microfilm, Aperture Cards, Microfiche, and ultra fiche. Using open reels or cassettes, Microfilm is often used as a way to store many documents in a… … Wikipedia
David Brewster — Born 11 December 1781 Canongate, Jedburgh, Roxburghshire … Wikipedia
November 1 — << November 2011 >> Su Mo Tu We Th Fr Sa 1 2 3 … Wikipedia
