geomagnetic survey
41Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
42Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
43McCuddin Mountains — The McCuddin Mountains is a small cluster of mountains in Antarctica consisting mainly of two large mountains, Mount Flint and Mount Petras, along with several scattered peaks and nunataks. Located in Marie Byrd Land, 64 km (40 mi) east …
442008 Sichuan earthquake — 2008 Earthquake 2008 Wenchuan Earthquake …
45Edward Sabine — Infobox Scientist name = PAGENAME box width = image size =150px caption = PAGENAME birth date = October 14, 1788 birth place = Dublin death date = May 26, 1883 death place = East Sheen residence = citizenship = nationality = Irish ethnicity =… …
46Solar System — This article is about the Sun and its planetary system. For other systems, see planetary system and star system. For a list of physical and orbital statistics for the Solar System s largest bodies, see List of gravitationally rounded objects of… …
47Napier Mountains — Range Region Enderby Land, East Antarctica Highest p …
48Eskdalemuir Observatory — The Eskdalemuir Observatory is located near Eskdalemuir, Dumfries and Galloway, Scotland. Built in 1904, its remote location was chosen to minimise electrical interference with geomagnetic instruments, which were relocated there from Kew Gardens… …
49Pol (Geomagnetismus) — Modell der Erdkugel mit Dipolfeld und induzierten Feldern Die geomagnetischen Pole der Erde sind im Unterschied zum tatsächlich gemessenen magnetischen Nord und Südpol theoretische Pole des Erdmagnetfeldes. Sie werden aus dem mittleren Verlauf… …
50geochronology — geochronologic /jee oh kron l oj ik/, geochronological, adj. geochronologist, n. /jee oh kreuh nol euh jee/, n. the chronology of the earth, as based on both absolute and relative methods of age determination. [1890 95; GEO + CHRONOLOGY] * * *… …
