focal property
51Neighborhoods of Milwaukee — Location of Milwaukee in Milwaukee County (left) and Wisconsin (right) Contents …
52Chinatown, San Francisco — Chinatown   Neighborhood of San Francisco   A Gateway Arch (Dragon Gate) on Grant Avenue at Bush Street in Chinatown, the only authentic China …
53Monochromator — in a x ray beamline at the Advanced Photon Source, Argonne National Laboratory. A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of… …
54photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
55History of the United States (1789–1849) — This is an article that covers the History of the United States from 1789 through 1849, Westward Expansion .After the election of George Washington as the first President in 1789, Congress passed the first of many laws organizing the government… …
56Point spread function — The point spread function (PSF) describes the response of an imaging system to a point source or point object. A related but more general term for the PSF is a system s impulse response. The PSF in many contexts can be thought of as the extended… …
57Iskandar Malaysia — Iskandar Malaysia, formerly known as Iskandar Development Region (IDR) and South Johor Economic Region (SJER) is the new main southern development corridor in Johor, Malaysia. The Iskandar Malaysia was established on 30 July 2006. It is named… …
58pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
59National Register of Historic Places listings in Albany, New York — The city of Albany with NHRP listings identified by pinpoints The National Register of Historic Places listings in Albany, New York represent the history of Albany from the Dutch colonial era, through the British colonial era, the American… …
60Refractive index — Refraction of light at the interface between two media. In optics the refractive index or index of refraction of a substance or medium is a measure of the speed of light in that medium. It is expressed as a ratio of the speed of light in vacuum… …
