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21Sukhoi Su-30MKK — Infobox Aircraft name=Su 30MKK caption= Venezuelan Su 30MK2 type= Multirole Fighter, Strike fighter, Heavy class fighter manufacturer=KnAAPO designer=Sukhoi first flight= introduced=December 2000 retired= status=Active service primary user=People …
22F-14 Tomcat — infobox Aircraft name= F 14 Tomcat caption= An F 14A Tomcat from the USS Nimitz during Operation Southern Watch type= Interceptor/multi role Fighter aircraft manufacturer= Grumman Northrop Grumman first flight= 21 December 1970 introduction=… …
23Mars Observer — Artist rendering of Mars Observer in orbit around Mars. Operator NASA / JPL …
2480-meter band — The 80 meter or 3.5 MHz band is a core amateur radio frequency band, allocated frequencies from 3.5 to 4.0 MHz in IARU Region 2, and generally 3.5 to 3.8 or 3.9 MHz in Regions 1 and 3 respectively. The portion of the band used for voice… …
25Sukhoi Su-30MKI — Infobox Aircraft name= Su 30MKI type= Air Superiority Fighter, Multirole Fighter, Heavy Class Fighter, Long Range Fighter, Strike Fighter crew= 2 manufacturer= Sukhoi HAL caption= Su 30MKI in Service with the Indian Air Force designer= first… …
26Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …
27Solar 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… …
28telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
29De Havilland Mosquito — Infobox Aircraft name= DH.98 Mosquito type=Fast bomber, fighter bomber, and night fighter manufacturer=de Havilland Aircraft Company caption= Mosquito B Mark IV Series 2, DK338 , in flight after completion c. 1942. IWM Collection designer=Ronald… …
30JJY — is the call sign of a low frequency time signal radio station.The station is located in Japan and broadcasts from two sites, one on Mount Otakadoya, near Fukushima, and the other on Mount Hagane, located on Kyushu Island. JJY is operated by the… …
