light focusing
91Infrared photography — Top: tree photographed in the near infrared range. Bottom: same tree in the visible part of the spectrum …
92Laser safety — A typical laser warning symbol. Laser safety is safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to… …
93religion — religionless, adj. /ri lij euhn/, n. 1. a set of beliefs concerning the cause, nature, and purpose of the universe, esp. when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and… …
94Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… …
95Quantum dot — Part of a series of articles on Nanomaterials Fullerenes …
96The Cantos — by Ezra Pound is a long, incomplete poem in 120 sections, each of which is a canto . Most of it was written between 1915 and 1962, although much of the early work was abandoned and the early cantos, as finally published, date from 1922 onwards.… …
97Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …
98Macro photography — is close up photography; the classical definition is that the image projected on the film plane (i.e., film or a digital sensor) is close to the same size as the subject. On 35 mm film (for example), the lens is typically optimized to focus… …
99eyeball — eyeballer, n. /uy bawl /, n. 1. the ball or globe of the eye. v.t. 2. Informal. to look at, check, or observe closely: two opponents eyeballing each other. [1580 90; 1900 05 for def. 2; EYE + BALL1] * * * ▪ anatomy spheroidal structure… …
100Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
