History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… … Universalium
Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… … Universalium
Mathematics 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… … Universalium
Mercury-Redstone 4 — Mission insignia Mission statistics Mission name Mercury Redstone 4 Spacecraft name Liberty Bell 7 Spacecraft mass 1,286 … Wikipedia
Magellan probe — Infobox Spacecraft Name = Magellan Caption = Magellan spacecraft and Inertial Upper Stage being launched from the cargo bay of Space Shuttle Atlantis Organization = NASA, CNES Major Contractors = Mission Type = Orbiter Satellite Of = Venus… … Wikipedia
List of Pokémon (441–493) — Pokémon has 649 (as of Pokémon Black and White) distinctive fictional species classified as the titular Pokémon. These creatures and entities reside throughout various locations of the fictional Pokémon universe and can be caught by humans… … Wikipedia
electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… … Universalium
MythBusters (2006 season) — Country of origin Australia United States No. of episodes 28 (includes 2 specials) Broadcast Original channel Discovery Channel … Wikipedia
Cassini–Huygens — Artist s concept of Cassini s Saturn Orbit Insertion Operator NASA / ESA / ASI Mission type … Wikipedia
B-47 Stratojet — Infobox Aircraft name=B 47 Stratojet type=Strategic bomber manufacturer=Boeing caption=Boeing B 47E 65 BW (AF Serial No. 51 5257) during rocket assisted takeoff test. designer= first flight=17 December 1947 introduced=June 1951 retired=1966, B… … Wikipedia