Artigo Acesso aberto

XXXI. The motion of a sphere in a viscous fluid

1900; Taylor & Francis; Volume: 50; Issue: 304 Linguagem: Inglês

10.1080/14786440009463920

ISSN

1941-5990

Autores

H. S. ALLEN,

Tópico(s)

Science and Climate Studies

Resumo

On the Motion of a Sphere in a Viscous Fluid.323 perhaps never completely, oxidized by air at the ordinary temperature, and therefore when old coal-bearing strata are washed away, the bulk of the old carbonaceous matter may still help to increase the percentage in the new deposits.However~ even if we should have to make a liberal a]lowance for the destruction of old carbonaceous matter by oxidation in some way or other, the results obtained by this line of inquiry are not unfavourable to the credibility of a high estimate of the world's supply of fuel~ for all the elements in the above calculation, required to give us 500,000,000,000,000 tons of coal, viz.(1) the amount of rock annually denuded and again deposited (85,000,000,000 tens)~ (2) the length of time that this denudation has "been going on ('20,000,000 years), and (3) the proportion of organic matter present (0"03 per cent.), are more likely, taken as a whole, to err on the side of being estimated too low than of being estimated too high.[To be continued.] XXXI. ~7~e ~]/[otion of a Sphe~v in a Viscous Fluid~

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