sighting distance
81George Mallory — George Herbert Leigh Mallory George Mallory Born 18 June 1886(1886 06 18) Mobberley, Cheshire, England Died …
82Phoenix Lights — [cite news |first=Richard |last=Price |authorlink= |coauthors=|format=pdf |title=Arizonans say the truth about UFO is out there |url=http://www.ufosnw.com/history of ufo/phoenixlights1997/usatodayarticle06181997old.pdf |work= |publisher=USA Today …
83Lost Ship of the Desert — Desert Ship redirects here. For the USS Desert Ship at White Sands, see USS Desert Ship (LLS 1). Contents 1 The Basic Stories 1.1 The Lost Galleon, or The Spanish Galleon …
84photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
85Hipparchus — (Greek polytonic|Ἵππαρχος; ca. 190 BC ndash; ca. 120 BC) was a Greek astronomer, geographer, and mathematician of the Hellenistic period.Hipparchus was born in Nicaea (now Iznik, Turkey), and probably died on the island of Rhodes. He is known to… …
86Stereoscopy — Stereoscopy, stereoscopic imaging or 3 D (three dimensional) imaging is any technique capable of recording three dimensional visual information or creating the illusion of depth in an image. The illusion of depth in a photograph, movie, or other… …
87Cassini–Huygens timeline — This page lists a chronology of events which have occurred or are expected to occur during the Cassini Huygens mission to Saturn and Titan.1997October 15 – Cassini launched at 08:43 UTC inside Titan IVB/Centaur.1998April 26 – Gravity assisted… …
88navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …
89Tachymeter — A tachymeter or tacheometer is a kind of theodolite used for rapid measurements and determines, electronically or electro optically, the distance to target, and is highly automated in its operations. A tachymeter is also used as the name of the… …
90SN 1054 — La nébuleuse du Crabe, rémanent de SN 1054, photographiée près de 1 000 ans après son explosion, qui fut vue la première fois au matin du 4 juillet 1054 …
