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Who said: “The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it... That is how we will preserve our planet, commanded to our care by God. That’s what will lend meaning to the creed our fathers once declared.”
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Home > Category Index for Science Quotations > Category Index S > Category: Sand

Sand Quotes (8 quotes)

Distrust even Mathematics; albeit so sublime and highly perfected, we have here a machine of such delicacy it can only work in vacuo, and one grain of sand in the wheels is enough to put everything out of gear. One shudders to think to what disaster such a grain of sand may bring a Mathematical brain. Remember Pascal.
The Garden of Epicurus (1894) translated by Alfred Allinson, in The Works of Anatole France in an English Translation (1920), 187.
Science quotes on:  |  Disaster (14)  |  Machine (55)  |  Mathematics (355)  |  Blaise Pascal (22)

I think I have been much of my life an irritant. But some people say that something good came out of my research, something valuable that could be regarded as a pearl, and I can assure those who worked with me it was you who made the pearls and I was merely the grain of sand, the irritant to produce the pearls.
[Recalling how, when increasingly in demand to serve on committees, upon attempting to resign from one, he was told by the chairman 'We want you as an irritant.']
Remark at a luncheon, quoted in Obituary, 'Nicholas Kurti, C. B. E. 14 May 1908-24 November 1998', by J.H. Sanders, Biographical Memoirs of Fellows of the Royal Society (Nov 2000), 46, 309.
Science quotes on:  |  Committee (6)  |  Pearl (2)  |  Research (358)  |  Value (63)

On the basis of the results recorded in this review, it can be claimed that the average sand grain has taken many hundreds of millions of years to lose 10 per cent. of its weight by abrasion and become subangular. It is a platitude to point to the slowness of geological processes. But much depends on the way things are put. For it can also be said that a sand grain travelling on the bottom of a river loses 10 million molecules each time it rolls over on its side and that representation impresses us with the high rate of this loss. The properties of quartz have led to the concentration of its grains on the continents, where they could now form a layer averaging several hundred metres thick. But to my mind the most astounding numerical estimate that follows from the present evaluations, is that during each and every second of the incredibly long geological past the number of quartz grains on earth has increased by 1,000 million.
'Sand-its Origin, Transportation, Abrasion and Accumulation', The Geological Society of South Africa (1959), Annexure to Volume 62, 31.
Science quotes on:  |  Estimate (8)  |  Geology (144)  |  Layer (8)  |  Molecule (80)  |  Process (97)

One summer day, while I was walking along the country road on the farm where I was born, a section of the stone wall opposite me, and not more than three or four yards distant, suddenly fell down. Amid the general stillness and immobility about me the effect was quite startling. ... It was the sudden summing up of half a century or more of atomic changes in the material of the wall. A grain or two of sand yielded to the pressure of long years, and gravity did the rest.
Under the Apple-Trees (1916), 105.
Science quotes on:  |  Atom (164)  |  Change (129)  |  Country (42)  |  Effect (70)  |  Entropy (25)  |  Fall (30)  |  Farm (4)  |  Grain (10)  |  Gravity (59)  |  Material (54)  |  Pressure (18)  |  Road (18)  |  Section (2)  |  Startling (4)  |  Stillness (3)  |  Stone (19)  |  Suddenness (2)  |  Sum (17)  |  Summer (9)  |  Walk (23)  |  Wall (10)  |  Yielding (2)

The existing premises, wholly altered by geologic science, are no longer those of Hume. The foot-print in the sand—to refer to his happy illustration—does now stand alone. Instead of one, we see many footprints, each in turn in advance of the print behind it, and on a higher level.
The Testimony of the Rocks (1869), 186-7, 1st Edition, 1857.
Science quotes on:  |  Alter (4)  |  Geology (144)  |  David Hume (29)  |  Illustration (16)  |  Premise (7)

The faculty for remembering is not diminished in proportion to what one has learnt, just as little as the number of moulds in which you cast sand lessens its capacity for being cast in new moulds.
Religion: a Dialogue, and Other Essays (1890), 99.
Science quotes on:  |  Capacity (14)  |  Cast (9)  |  Diminish (5)  |  Faculty (19)  |  Learn (23)  |  Memory (41)  |  Mould (7)  |  Number (88)  |  Proportion (23)  |  Remember (18)

To see a World in a grain of Sand,
And a Heaven in a Wild Flower,
Hold Infinity in the palm of your hand,
And Eternity in an hour.
William Blake and Alexander Gilchrist (ed.), Life of William Blake: with selections from his poems and other writings (1880), Vol. 2, 107.
Science quotes on:  |  Eternity (20)  |  Flower (22)  |  Grain (10)  |  Hand (30)  |  Hold (20)  |  Hour (13)  |  Infinity (44)  |  World (206)

Who then can calculate the path of the molecule? how do we know that the creations of worlds are not determined by the fall of grains of sand?
Victor Hugo and Charles E. Wilbour (trans.), Les Misιrables (1862), 41.
Science quotes on:  |  Butterfly Effect (2)  |  Calculation (38)  |  Chance (73)  |  Creation (124)  |  Determination (32)  |  Fall (30)  |  Molecule (80)  |  Path (22)  |  World (206)

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
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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
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton

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