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from article Strychnos
Strychnos nux-vomica: close-up view of leaves and flowering branch. (Photo courtesy of Dinesh Valke)
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from article Clathrate compounds
Schematic drawing of the lattices of (a, c) urea and (b, d) thiourea; c and d show accommodation of unbranched and branched paraffin chains, respectively.
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from article Clathrate compounds
Molecular model of α-dextrin–iodine compound seen in the direction of the c axis, that is, in the direction of the iodine chains, which lie in channels.
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from article Surveillance radar
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from article Incandescence
Graph showing the relation between the brightness of a blackbody and temperature. °F = (°C × 1.8) + 32.
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from article Guided missile
A U.S. Navy ship fires a Tomahawk cruise missile at a target in Libya as part of Operation Odyssey Dawn in 2011. (Credit: MC3 Jonathan Sunderman/US Navy/DoD)
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from article Guided missile
A V-2 rocket constructed by the U.S. military lifts off in this historical photo. Production and development of V-2 rockets continued in the United States after the defection of German aerospace engineers during World War II. (Credit: U.S. Army)
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from article Neandertals
Neandertal cranium excavated from Forbes' Quarry, Gibraltar. Note the pronounced brow ridges, large braincase, and receding forehead. (Credit: Clive Finlayson/Gibraltar Museum)
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from article Neandertals
Gorham's Cave, Gibraltar, is the last known site of Neandertal occupation, being dated possibly to 30,000 years ago. (Credit: Clive Finlayson/Gibraltar Museum)
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from article Neandertals
Reconstructed skull of a Neandertal from the cave at La Chapelle-aux-Saints, France. (Credit: Illustration adapted from an original drawing by M. F. Ashley Montagu)
