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A.G. Smith, Estimates of the Earth's spin (geographic) axis relative to Gondwana from glacial sediments and paleo- magntism, Earth Sci. Rev. 42 (1997) 161-179.Smith, A.G., 1997. Estimates of Earth's spin (geographic) axis relative to Gondwana from glacial sediments and paleomagnet- ...
The direction from any point on Earth toward the North Pole. Also calledtrue north. Comparemagnetic north. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. ...
1. (Placename) the southernmost point on the earth's axis, at the latitude of 90°S 2. (Astronomy) astronomy the point of intersection, in the constellation Octans, of the earth's extended axis and the southern half of the celestial sphere 3. (General Physics) (usually not capitals) th...
Movement of the geographic poles.The instantaneous axis of earth rotation does not always maintain the same direction in the earth. As a result, the geographic poles shift across the earth’s surface, a phenomenon known as polar motion. Data on polar motion is important in astronomy and geodesy...
the geographic North Pole, also known as True North. It is located at 90°North latitudebut it has no specific line of longitude since all lines of longitude converge at the pole. The Earth's axis runs through the North and South poles and it is the line around which the Earth rotates...
acid rain characterized as containing harmful levels of sulfur dioxide; acid rain is damaging and potentially deadly to the earth's fragile ecosystems; acidity is measured using the pH scale where 7 is neutral, values greater that 7 are considered alkaline, and anything measured below 5.6 is...
The Geographic South Pole is defined as the southern point on Earth's surface that crosses the Earth's axis of rotation. This is the South Pole that is located at the site of the Amundsen-Scott South Pole Station. It moves about 33 feet (ten meters) because it is located on a moving...
No Monkeys, No Chocolate was a Kirkus Best Books of 2013 and NSTA Outstanding Science Trade Book. A Place for Turtles won the Green Earth Book Award. Melissa holds degrees in biology and science journalism and is also the co-author (with Nancy Chelsey) of Perfect Pairs: Using Fiction & ...