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21A-4 Skyhawk — Infobox Aircraft name = A 4 Skyhawk caption = USMC A 4M Skyhawks from VMA 214 The Black Sheep type = Attack aircraft national origin = United States manufacturer = Douglas Aircraft Company McDonnell Douglas designer = Ed Heinemann first flight =… …
22HMS Argonaut — Four ships of the Royal Navy have been named HMS Argonaut after the Argonauts of Greek mythology:* The first HMS|Argonaut|1782|2 was a 64 gun third rate, originally the French ship Jason , captured in 1782 in the West Indies and broken up in 1831 …
23Wright R-1820 — The Wright R 1820 Cyclone 9 was an American radial engine developed by Curtiss Wright and widely used on 1930s through 1950s aircraft. HistoryThe R 1820 Cyclone 9 represented a further development of the Wright P 2 engine dating back to 1925.… …
24Sandmeyer reaction — The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts. [cite journal author = Traugott Sandmeyer title = Ueber die Ersetzung der Amidgruppe durch Chlor in den aromatischen Substanzen year = 1884… …
25Kurskaya-Koltsevaya — Kurskaya ( ru. Курская) is a Moscow Metro station, located on the Koltsevaya Line. Opened on 1 January, 1950, the station is built to a design of architects G.Zakharkov and Z.Chernysheva under the supervision of famous architect Ivan Zholtovsky… …
26F11C Goshawk — Infobox Aircraft name = F11C Goshawk type = Carrierborne Fighter Fighter Bomber manufacturer = Curtiss Aeroplane and Motor Company caption = Curtiss XBFC 1 Model 64 prototype designer = first flight = September 1932 introduced = April 1932… …
27Probenecid — Systematic (IUPAC) name 4 (dipropylsulfamoyl)benzoic acid Clinical data AHFS/Drugs.com …
28HMS Petard (G56) — was a P class destroyer of the British Royal Navy that saw service during World War II.She was built by Vickers Armstrong and launched 27 March 1941. Petard had the distinction of sinking a submarine from the three Axis navies: the German U 559 …
29Yellow-crested Manakin — Taxobox name = Yellow crested Manakin status = LC | status system = IUCN3.1 regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes familia = Pipridae genus = Heterocercus species = H. flavivertex binomial = Heterocercus… …
30Thrush-like Schiffornis — Taxobox name = Thrush like Schiffornis status = LC | status system = IUCN3.1 regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes familia = Tityridae genus = Schiffornis species = S. turdina binomial = Schiffornis turdina… …
