Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateD. Appleton, 1875 - 577 páginas |
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Página xi
... surfaces . - Where are all our ancient Land - surfaces ? -The stratified Rocks consist of a Series of old Sea- bottoms . - Transformation of a Land - surface into a Sea - bottom oblite- rates all Traces of Glaciation . - Why so little ...
... surfaces . - Where are all our ancient Land - surfaces ? -The stratified Rocks consist of a Series of old Sea- bottoms . - Transformation of a Land - surface into a Sea - bottom oblite- rates all Traces of Glaciation . - Why so little ...
Página 26
... surface when the sun is in the zenith . And were the sun to remain stationary in the zenith for twelve hours , 2,796,768 foot - pounds would fall upon the surface . It can be shown that the total amount of heat received upon a unit surface ...
... surface when the sun is in the zenith . And were the sun to remain stationary in the zenith for twelve hours , 2,796,768 foot - pounds would fall upon the surface . It can be shown that the total amount of heat received upon a unit surface ...
Página 30
... surface of the ground at the equator becomes intensely heated by the sun's rays . This causes it to radiate its heat more rapidly into space than a surface of water heated under the same conditions . Again , the air in contact with the ...
... surface of the ground at the equator becomes intensely heated by the sun's rays . This causes it to radiate its heat more rapidly into space than a surface of water heated under the same conditions . Again , the air in contact with the ...
Página 33
... surface ; and the greater the radiating surface , the greater is the quantity of heat thrown off . But this is not all ; the number of aërial particles heated by radiation increases in proportion to the area of the radiating surface ...
... surface ; and the greater the radiating surface , the greater is the quantity of heat thrown off . But this is not all ; the number of aërial particles heated by radiation increases in proportion to the area of the radiating surface ...
Página 48
... surface been entirely composed of land or of water . " The result at which he arrived is this : that , were the surface of the globe all water , 71 ° 7 would be the temperature of the equator , and 12 ° -5 the temperature of the poles ...
... surface been entirely composed of land or of water . " The result at which he arrived is this : that , were the surface of the globe all water , 71 ° 7 would be the temperature of the equator , and 12 ° -5 the temperature of the poles ...
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Términos y frases comunes
amount of heat antarctic aphelion arctic regions Atlantic beds bottom boulder clay Caithness Carboniferous cause centre of gravity channel coal cold periods condition of climate consequently considerable denudation deposits depth descend earth's orbit eccentricity ecliptic effect Eocene equator evidence existence extent fact feet flow foot-pounds force Geikie Geol geological geologists glacial epoch glacier globe Grangemouth gravel greater Greenland Gulf-stream heat received ice-cap icebergs inter-glacial periods island James Geikie Kilsyth land land-ice latitude lower mass mean melting miles Miocene molecules motion North North Sea northern obliquity ocean ocean-currents perihelion polar column polar regions poles present probably produce Professor quantity of heat radiation regarding result river rocks sand says Scotland sea-bottom sea-level shear Sir Charles Lyell slope snow southern hemisphere specific gravity stones stratified stream striated submergence summer sun's supposed surface theory thickness tion valley warm periods winter
Pasajes populares
Página 331 - ... been removed from the general surface in one year ; and there seems no danger of our overrating the mean rate of waste by selecting the Mississippi as our example, for that river drains a country equal to more than half the continent of Europe, extends through twenty degrees of latitude, and therefore through regions enjoying a great variety of climate, and some of its tributaries descend from mountains of great height. The Mississippi is also more likely to afford us a fair test of ordinary...
Página 535 - Now, the perihelion of the orbit is situated nearly at the place of the northern winter solstice ; so that, were it not for the compensation we have just described, the effect would be to exaggerate the difference of summer and winter in the southern hemisphere, and to moderate it in the northern ; thus producing a more violent alternation of climate in the one hemisphere, and an approach to perpetual spring in the other. As it is, however, no such inequality subsists, but an equal and impartial...