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Who said: “As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.”
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Home > Category Index for Science Quotations > Category Index L > Category: Lava

Lava Quotes (3 quotes)

Etna presents us not merely with an image of the power of subterranean heat, but a record also of the vast period of time during which that power has been exerted. A majestic mountain has been produced by volcanic action, yet the time of which the volcanic forms the register, however vast, is found by the geologist to be of inconsiderable amount, even in the modern annals of the earth's history. In like manner, the Falls of Niagara teach us not merely to appreciate the power of moving water, but furnish us at the same time with data for estimating the enormous lapse of ages during which that force has operated. A deep and long ravine has been excavated, and the river has required ages to accomplish the task, yet the same region affords evidence that the sum of these ages is as nothing, and as the work of yesterday, when compared to the antecedent periods, of which there are monuments in the same district.
Travels in North America (1845), Vol. 1, 28-9.
Science quotes on:  |  Erosion (18)  |  Etna (2)  |  Mountain (132)  |  Niagara Falls (4)  |  Ravine (5)  |  Volcano (37)  |  Water (264)

Ninety-nine and nine-tenths of the earth’s volume must forever remain invisible and untouchable. Because more than 97 per cent of it is too hot to crystallize, its body is extremely weak. The crust, being so thin, must bend, if, over wide areas, it becomes loaded with glacial ice, ocean water or deposits of sand and mud. It must bend in the opposite sense if widely extended loads of such material be removed. This accounts for … the origin of chains of high mountains … and the rise of lava to the earth’s surface.
Presidential speech to the Geological Society of America at Cambridge, Mass. (1932). As quoted in New York Times (20 Sep 1957), 23. Also summarized in Popular Mechanics (Apr 1933), 513.
Science quotes on:  |  Bend (9)  |  Chain (43)  |  Crust (17)  |  Crystal (49)  |  Deposit (9)  |  Earth (582)  |  Glacier (16)  |  Ice (31)  |  Load (8)  |  Material (129)  |  Mountain (132)  |  Mud (14)  |  Ocean (138)  |  Opposite (40)  |  Origin (78)  |  Removal (10)  |  Rise (64)  |  Sand (29)  |  Surface (87)  |  Water (264)

What marvel is this? We begged you for drinkable springs,
O earth, and what is your lap sending forth?
Is there life in the deeps as well? A race yet unknown
Hiding under the lava? Are they who had fled returning?
Come and see, Greeks; Romans, come! Ancient Pompeii Is found again, the city of Hercules rises!
Translation as given, without citation, as epigraph in C.W. Ceram, Gods, Graves, and Scholars: The Story of Archaeology (1986), 1. There are other translations of the Schiller’s original German, for example, in 'Pompeii and Herculaneum', Life of Schiller: Poetical Works (1902), 249.
Science quotes on:  |  Ancient (71)  |  Archaeology (43)  |  City (40)  |  Deep (99)  |  Drink (32)  |  Earth (582)  |  Greek (46)  |  Herculaneum (3)  |  Life (993)  |  Marvel (24)  |  Pompeii (3)  |  Return (39)  |  Roman (17)  |  Water (264)


Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
Quotations by: • Albert Einstein • Isaac Newton • Lord Kelvin • Charles Darwin • Srinivasa Ramanujan • Carl Sagan • Florence Nightingale • Thomas Edison • Aristotle • Marie Curie • Benjamin Franklin • Winston Churchill • Galileo Galilei • Sigmund Freud • Robert Bunsen • Louis Pasteur • Theodore Roosevelt • Abraham Lincoln • Ronald Reagan • Leonardo DaVinci • Michio Kaku • Karl Popper • Johann Goethe • Robert Oppenheimer • Charles Kettering  ... (more people)

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- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
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Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
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Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
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Robert Fulton
Pierre Laplace
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Thomas Edison
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Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
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Karl Popper
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Avicenna
James Watson
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- 50 -
Stephen Hawking
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Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
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Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
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- 30 -
Andreas Vesalius
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Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
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Charles Kettering
- 20 -
Carl Sagan
James Maxwell
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Francis Crick
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Francis Bacon
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- 10 -
Aristotle
John Watson
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Michio Kaku
Isaac Asimov
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