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21Henrik Svensmark — Infobox Scientist box width = name = Henrik Svensmark image size = 180px caption = Henrik Svensmark birth date = birth place = death date = death place = residence = citizenship = nationality = Danish ethnicity = fields = Physicist workplaces =… …
22Greisen-Zatsepin-Kuzmin limit — The Greisen Zatsepin Kuzmin limit (GZK limit) is a theoretical upper limit on the energy of cosmic rays from distant sources. Computation of the GZK limit This limit was computed in 1966 by Kenneth Greisencite journal |last=Greisen |first=Kenneth …
23Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
24Wikipedia:Featured article candidates — Here, we determine which articles are to be featured articles (FAs). FAs exemplify Wikipedia s very best work and satisfy the FA criteria. All editors are welcome to review nominations; please see the review FAQ. Before nominating an article,… …
25X-ray — [ 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896. The dark oval on the third finger is a shadow produced by her ring. [cite book last = Kevles first =Bettyann Holtzmann …
26Shark — Taxobox name = Shark fossil range = Late Devonian Recent image width = 250px image caption = Grey reef shark, Carcharhinus amblyrhynchos regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Chondrichthyes subclassis =… …
27Rainbow runner — Taxobox name = Rainbow runner image width = 240px regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Perciformes subordo = Percoidei superfamilia = Percoidea familia = Carangidae genus = Elagatis genus authority = Bennet, 1840… …
28Nikola Tesla — Tesla, aged 37, 1893, photo by Sar …
29Hulk (comics) — Bruce Banner redirects here. For other uses, see Hulk (disambiguation). The Hulk Promotional art for The Incredible Hulk vol. 3, #92 (April 2006) by Bryan Hitch …
30Science in medieval Islam — In the history of science, Islamic science refers to the science developed under the Islamic civilization between the 8th and 16th centuries, during what is known as the Islamic Golden Age. [cite journal|first=A. I.|last=Sabra|authorlink=A. I.… …
