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 ix
... Force resulting from Difference of Specific Gravity . - Sir John Herschel's Estimate of the Force.- Maximum Density of Sea - Water . - Rate of Decrease of Temperature of Ocean at Equator . - The actual Amount of Force resulting from ...
... Force resulting from Difference of Specific Gravity . - Sir John Herschel's Estimate of the Force.- Maximum Density of Sea - Water . - Rate of Decrease of Temperature of Ocean at Equator . - The actual Amount of Force resulting from ...
Página xvi
... Force . The Rationale of Regelation . - The Origin of " Cre- vasses . " - Effects of Tension . - Modification of Theory . - Fluid Mole- cules crystallize in Interstices . - Expansive Force of crystallizing Molecules a Cause of Motion ...
... Force . The Rationale of Regelation . - The Origin of " Cre- vasses . " - Effects of Tension . - Modification of Theory . - Fluid Mole- cules crystallize in Interstices . - Expansive Force of crystallizing Molecules a Cause of Motion ...
Página 7
... force in the form of heat passing through different parts of space ; but space itself is not a sub- * Athenæum , September 22 , 1860 . + Trans . Glasgow Geol . Soc . , vol . iv . , p . 313 . stance which can possibly be either cold or ...
... force in the form of heat passing through different parts of space ; but space itself is not a sub- * Athenæum , September 22 , 1860 . + Trans . Glasgow Geol . Soc . , vol . iv . , p . 313 . stance which can possibly be either cold or ...
Página 18
... force of gravity resulting from that difference is so infinitesimal that it is doubtful whether it is sufficient to produce sensible motion . I have also shown in Chapter VIII . that all the facts which this theory is designed to ...
... force of gravity resulting from that difference is so infinitesimal that it is doubtful whether it is sufficient to produce sensible motion . I have also shown in Chapter VIII . that all the facts which this theory is designed to ...
Página 32
... force of this objection . Why , the very efficiency of the stream as a heating agent necessarily depends upon the slowness of its motion . Did the Gulf - stream move as rapidly along its whole course as it does in the Straits of Florida ...
... force of this objection . Why , the very efficiency of the stream as a heating agent necessarily depends upon the slowness of its motion . Did the Gulf - stream move as rapidly along its whole course as it does in the Straits of Florida ...
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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...