03 MAR 2014 by ideonexus

 The Great Demotions and the Promotion of the Human Race

Sagan had talked of the “great demotions.” Humanity had learned, painfully, that it did not live on a planet at the center of the universe, and further demotions followed. We were not (in Sagan’s view) the purpose of the Creation, not specially chosen by a divine authority, and were in fact just one evolutionary twist in a complicated biosphere shaped by the mindless process of natural selection. If we were ever to make contact with another intelligent species, those aliens would in all...
  1  notes

History has shown us how small and insignificant we are, but it has also revealed the profound impact we have on our own little world.

05 JUN 2012 by ideonexus

 On Reading Chronology in Nature

I do ... humbly conceive (tho' some possibly may think there is too much notice taken of such a trivial thing as a rotten Shell, yet) that Men do generally rally too much slight and pass over without regard these Records of Antiquity which Nature have left as Monuments and Hieroglyphick Characters of preceding Transactions in the like duration or Transactions of the Body of the Earth, which are infinitely more evident and certain tokens than any thing of Antiquity that can be fetched out of C...
Folksonomies: geology
Folksonomies: geology
  1  notes

Hooke describes the difficulty and importance of establishing a chronology for mutations and catastrophes in the geological record.

29 MAY 2012 by ideonexus

 Geologists VS Physicists on the Age of the Earth

Geologists have not been slow to admit that they were in error in assuming that they had an eternity of past time for the evolution of the earth's history. They have frankly acknowledged the validity of the physical arguments which go to place more or less definite limits to the antiquity of the earth. They were, on the whole, disposed to acquiesce in the allowance of 100 millions of years granted to them by Lord Kelvin, for the transaction of the whole of the long cycles of geological histor...
Folksonomies: physics geology
Folksonomies: physics geology
  1  notes

Geologists argued for a much older Earth than the Physicists allowed for.