Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateAppleton, 1890 - 577 páginas |
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Página xiii
... SUN . Gravitation Theory . - Amount of Heat emitted by the Sun. - Meteoric Theory . - Helmholtz's Condensation Theory . - Confusion of Ideas .-— Gravitation not the chief Source of the Sun's Heat . - Original Heat.- Source of Original ...
... SUN . Gravitation Theory . - Amount of Heat emitted by the Sun. - Meteoric Theory . - Helmholtz's Condensation Theory . - Confusion of Ideas .-— Gravitation not the chief Source of the Sun's Heat . - Original Heat.- Source of Original ...
Página 8
... sun is a variable star , and that the glacial epochs of the geologists may correspond to periods of decrease in the sun's heat , has lately been advanced . This theory is also open to two objections : ( 1 ) , a general diminution of ...
... sun is a variable star , and that the glacial epochs of the geologists may correspond to periods of decrease in the sun's heat , has lately been advanced . This theory is also open to two objections : ( 1 ) , a general diminution of ...
Página 11
... sun's distance ; the reason being that whatever may be the ellipticity of the orbit , it follows that equal amounts of heat are received from the sun in passing over equal angles round it , in whatever part of the ellipse those angles ...
... sun's distance ; the reason being that whatever may be the ellipticity of the orbit , it follows that equal amounts of heat are received from the sun in passing over equal angles round it , in whatever part of the ellipse those angles ...
Página 12
... sun , the sun does not remain so long on the southern hemisphere as he does on the northern . These two effects so ... sun's direct heating power to double this , or 1-15th of the whole . Now the perihelion of the orbit is situated ...
... sun , the sun does not remain so long on the southern hemisphere as he does on the northern . These two effects so ... sun's direct heating power to double this , or 1-15th of the whole . Now the perihelion of the orbit is situated ...
Página 13
... sun . There is , however , one effect that was not regarded as com- pensated . The total amount of heat received by the earth is inversely proportional to the minor axis of its orbit ; and it follows , therefore , that the greater the ...
... sun . There is , however , one effect that was not regarded as com- pensated . The total amount of heat received by the earth is inversely proportional to the minor axis of its orbit ; and it follows , therefore , that the greater the ...
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amount of heat antarctic aphelion arctic regions Atlantic beds bottom boulder clay Caithness Carboniferous cause consequently considerable density denudation deposits depth descend difference of specific difference of temperature earth's orbit eccentricity ecliptic effect Eocene equal equator equatorial column equatorial regions evidence extent fact feet flow foot-pounds force Geol geological geologists glacial epoch glacier globe Grangemouth greater Greenland Gulf-stream heat received ice-cap icebergs inter-tropical John Herschel land land-ice latitude lower mass mean temperature melting miles Miocene molecules motion North North Sea northern obliquity ocean-currents oceanic circulation perihelion polar column polar regions poles present probably produce Professor quantity of heat radiation regard result river rocks sand Scotland sea-bottom sea-level shear slope snow and ice southern hemisphere specific gravity Straits of Florida stratified stream striated submergence summer sun's supposed surface theory thickness tion tropical warm periods warm water winds winter