average drift
71Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …
72El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
73Tide — This article is about tides in the Earth s oceans. For other uses, see Tide (disambiguation). Tidal redirects here. For other uses, see Tidal (disambiguation). High Tide redirects here. For other uses, see High Tide (disambiguation) …
74Coastal management — This article is about coastal management aimed to prevent erosion and flooding. For broader management issues, see Integrated coastal zone management. Oosterscheldekering sea wall, the Netherlands. In some jurisdictions the terms sea defense and… …
75Human genetic variation — is the natural variation in gene frequencies observed between the genomes of individuals or groups of humans. Variation can be measured at both the individual level (differences between individual people) and at the population level, i.e.… …
76Switzerland — /swit seuhr leuhnd/, n. a republic in central Europe. 7,248,984; 15,944 sq. mi. (41,294 sq. km). Cap.: Bern. French, Suisse. German, Schweiz. Italian, Svizzera. Latin, Helvetia. * * * Switzerland Introduction Switzerland Background: Switzerland s …
77Guiding center — Charged particle drifts in a homogeneous magnetic field. (A) No disturbing force (B) With an electric field, E (C) With an independent force, F (eg. gravity) (D) In an inhomogeneous magnetic field, grad H In many cases of practical interest, the… …
78Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
79Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …
80Monbetsu, Hokkaidō — This article is about the city in Hokkaidō Prefecture, Japan. There was a town in Hidaka Subprefecture, Hokkaidō with this name, see Monbetsu, Hokkaidō (Hidaka). For the district in Ohōtsuku Subprefecture, Hokkaidō, see Monbetsu District,… …
