single-reflector antenna
21History 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.… …
22Arecibo Observatory — Arecibo Radio Telescope Organization SRI International, NSF, Cornell University Location …
23Toyota Revo — The Toyota Revo (Full Name: Toyota Tamaraw FX Revo) was introduced in the Philippines in 1998, an offshoot of the successful Toyota Tamaraw FX. Its direct ancestor is the successful Tamaraw, Toyota s brand of the versatile Asian Utility Vehicle… …
24Solar power satellite — A solar power satellite, or SPS or Powersat, as originally proposed would be a satellite built in high Earth orbit that uses microwave power transmission to beam solar power to a very large antenna on Earth. Advantages of placing the solar… …
25Battle of the Beams — The Battle of the Beams was a period in early World War II when bombers of the German Air Force ( Luftwaffe ) started using radio navigation for night bombing. British scientific intelligence at the Air Ministry fought back with a variety of… …
26Kite types — Colorful delta wing kite Kites are tethered flying objects which fly by using aerodynamic lift, requiring wind, (or towing), for generation of airflow over the lifting surfaces. Contents 1 Kite …
27navigation — 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.… …
28radio telescope — Astron. a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus. [1925 30] * * * Combination of radio receiver and antenna, used for… …
29History of the telescope — The earliest known working telescopes appeared in 1608 and are credited to Hans Lippershey and Zacharias Janssen, spectacle makers in Middelburg, and Jacob Metius of Alkmaar. The design of these early refracting telescopes consisted of a convex… …
30List of Cosmic Era mobile units — This is a list of fictional mobile units from the Cosmic Era (CE) timeline of the Gundam anime metaseries. Mobile units are mobile suits and mobile armors. Mobile suits and mobile armors are fictional mecha.The codes after the name specify in… …
