MathTrek.Prime record A computer search turned up the 40th Mersenne prime A Mersenne prime is a Mersenne number that is a prime number. In mathematics, a Mersenne number is a number that is one less than a power of two, . It's a 6,320,430-digit behemoth behemoth (bē`hĭmŏth, bĭhē`–) [Heb.,=plural of beast], large, fanciful primeval monster, like Leviathan, evoking the hippopotamus mentioned in the Book of Job. that now holds the record as the largest known prime The largest known prime is the largest integer that is currently known to be a prime number. It was proven by Euclid that there are infinitely many prime numbers; thus, there is always a prime greater than the largest known prime. number (www.sci encenews.org/20031206/mathtrek.asp). Faulty randomness Researchers provided new mathematical insight into why certain random-number generators give wrong results in some computational experiments and simulations (www.sciencenews.org/ 20030927/mathtrek.asp). Even larger The Goldbach conjecture--every even number larger than 2 is the sum of two prime numbers--has been verified up to 6 x [10.sup.16] (www.sciencenews.org/ 20031011/mathtrek.asp). Shape superformula A new, simple equation generates a wide variety of appealing and biologically relevant shapes (www.sci encenews.org/20030503/mathtrek.asp). Election reversal In votes involving three or more candidates, many election procedures can produce the same result when voter preferences are reversed (www.science news.org /20031018/mathtrek.asp). Electronic paper Changeable ink and battery-powered paper could eventually make textbooks lighter and bring video newspapers into daily use (www.science newsforkids.org/articles/20031203/Fea ture1.asp). Dinosaur dinosaur (dī`nəsôr) [Gr., = terrible lizard], extinct land reptile of the Mesozoic era. The dinosaurs, which were egg-laying animals, ranged in length from 2 1-2 ft (91 cm) to about 127 ft (39 m). growth Learning how fast dinosaurs grew may clarify their link with birds (www.sciencenewsforkids.orgy/arti cles/20031126/Feature1.asp). Defying gravity A gecko's remarkable grip on walls and ceilings suggests new types of sticky materials (www.science newsforkids.org/articles/20031119/ Feature1.asp). Victual reality Computer technology that puts kids in a cartoon classroom may help children with attention disorders learn to pay attention (www.sciencenewsforkids.org/ artieles/20031022/Feature1.asp). Counting crows Animals that can count or find quick routes to a goal have taught scientists a thing or two about how to handle numbers (www.science newsforkids.org/articles/20031008/ Feature1.asp). Venom venom or zootoxin, any of a variety of poisonous substances produced by animals. In poisonous snakes, venom is secreted in two poison glands, one on each side of the upper jaw, and enters the fang by a duct. delivery Poisonous poi·son·ous adj. Relating to or caused by a poison. poisonous having the properties of a poison. poisonous bride's bush pavettaschumanniana. snakes appear to control the amount of venom that they inject into their victims (www.science newsforkids.org/articles/20030903/ Feature1.asp). Sky dust Dust raining down from space and Earth's atmosphere “Air” redirects here. For other uses, see Air (disambiguation). Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly (by molar content/volume) 78% nitrogen, 20.95% oxygen, 0.93% argon, 0. provides information about weather patterns, pollution, and the origin of the universe (www.science newsforkids.org/articles/20030813/ Feature1.asp). |
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