Mosaic, 18-20. sējumiNational Science Foundation, 1987 |
Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
18 Number activity areas arsenide atmosphere atoms bacteria biological biologists Brinster calcium called carbon dioxide cell cellular Celsius Center chemical climate colleagues crystal degrees devices dynein earth elec electrons energy enzyme experiments field fractal G protein gallium gallium arsenide gamma-ray gene genetic global growth Heppenheimer homeobox hominid human icosahedral images increase Institute ion channels kilometers kinesin laboratory laser layer mantle material math mathematics measure mechanism membrane ment microtubules million molecular molecules Mosaic Mosaic Volume National Science Foundation neural neurons ocean optical orbit organelles organisms oxide ozone particles pattern percent physicists physics predict problem produce protein quantum quarks quasicrystal radiation recent receptor says science and engineering scientific sequence silicon solar species structure superconducting surface techniques temperature theory tion ture undulipodia United University Volume 19 Number women
Populāri fragmenti
7. lappuse - The question of questions for mankind — the problem which underlies all others, and is more deeply interesting than any other — is the ascertainment of the place which Man occupies in nature and of his relations to the universe of things.
4. lappuse - Great fleas have little fleas upon their backs to bite 'em, And little fleas have lesser fleas, and so ad infinitum.
27. lappuse - To gain a scientific understanding of how human activities will affect the Earth's environment requires a new approach to Earth sciences. We need to obtain a scientific understanding of the entire Earth system on a global scale by describing how its component pans and their interactions have evolved, how they function, and how they may be expected to continue to change on all time scales.
47. lappuse - When two elementary brain-processes have been active together or in immediate succession, one of them, on reoccurring, tends to propagate its excitement into the other.
36. lappuse - Thank you for your order! (Daytime phone including area code) (Signature) 4. Mail To: Superintendent of Documents. Government Printing Office, Washington, DC 20402-9371 NATIONAL SCIENCE FOUNDATION WASHINGTON.
17. lappuse - False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little harm, for every one takes a salutary pleasure in proving their falseness...
7. lappuse - And once I had recognized the taste of the crumb of madeleine soaked in her decoction of lime-flowers which my aunt used to give me (although I did not yet know and must long postpone the discovery of why this memory made me so happy) immediately the old grey house upon the street, where her room was, rose up like the scenery of a theatre to attach itself to the little pavilion, opening...
11. lappuse - In each great region of the world the living mammals are closely related to the extinct species of the same region. It is therefore probable that Africa was formerly inhabited by extinct apes closely allied to the gorilla and chimpanzee ; and as these two species are now man's nearest allies, it is somewhat more probable that our early progenitors lived on the African continent than elsewhere.
107. lappuse - ... may be said to be striving to the utmost to increase in numbers, that each lives by a struggle at some period of its life, that heavy destruction inevitably falls either on the young or old during each generation or at recurrent intervals. Lighten any check, mitigate the destruction ever so little, and the number of the species will almost instantaneously increase to any amount.