flat-plate interferometer
1Shearing interferometer — The shearing interferometer is an extremely simple means to observe interference and to use this phenomenon to test the collimation of light beams, especially from laser sources which have a coherence length which is usually a lot longer than the …
2optical flat — a glass plate so perfectly flat that only an interferometer can measure its unevenness …
3spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …
4telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
5Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
6Wave–particle duality — Quantum mechanics Uncertainty principle …
7Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
8motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
9Mirror — looking glass redirects here. For other uses, see Looking Glass (disambiguation). This article is about wave reflectors (mainly, specular reflection of visible light). For other uses, see Mirror (disambiguation). A mirror, reflecting a vase A… …
10Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …
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