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Who said: “A change in motion is proportional to the motive force impressed and takes place along the straight line in which that force is impressed.”
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Home > Category Index for Science Quotations > Category Index L > Category: Logarithm

Logarithm Quotes (4 quotes)

...by shortening the labours doubled the life of the astronomer.
On the benefit of Napier's logarithms.
Quoted in H. Eves, In Mathematical Circles (1969).
Science quotes on:  |  Astronomer (50)  |  John Napier (2)

Imagine a person with a gift of ridicule [He might say] First that a negative quantity has no logarithm; secondly that a negative quantity has no square root; thirdly that the first non-existent is to the second as the circumference of a circle is to the diameter.
Science quotes on:  |  Mathematics (587)

Suppose we divide the space into little volume elements. If we have black and white molecules, how many ways could we distribute them among the volume elements so that white is on one side and black is on the other? On the other hand, how many ways could we distribute them with no restriction on which goes where? Clearly, there are many more ways to arrange them in the latter case. We measure “disorder” by the number of ways that the insides can be arranged, so that from the outside it looks the same. The logarithm of that number of ways is the entropy. The number of ways in the separated case is less, so the entropy is less, or the “disorder” is less.
In 'Order And Entropy', The Feynman Lectures on Physics (1964), 46-7.
Science quotes on:  |  Disorder (19)  |  Distribute (5)  |  Entropy (40)  |  Measure (70)  |  Molecule (125)

The spectacular thing about Johnny [von Neumann] was not his power as a mathematician, which was great, or his insight and his clarity, but his rapidity; he was very, very fast. And like the modern computer, which no longer bothers to retrieve the logarithm of 11 from its memory (but, instead, computes the logarithm of 11 each time it is needed), Johnny didn't bother to remember things. He computed them. You asked him a question, and if he didn't know the answer, he thought for three seconds and would produce and answer.
From interview with Donald J. Albers. In John H. Ewing and Frederick W. Gehring, Paul Halmos Celebrating 50 Years of Mathematics (1991), 9.
Science quotes on:  |  Answer (201)  |  Compute (10)  |  Computer (84)  |  Mathematician (177)  |  Memory (81)  |  Question (315)  |  Remember (53)  |  Thinking (222)  |  John von Neumann (7)


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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Sophie Germain
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William Harvey
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Carl Gauss
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- 90 -
Antoine Lavoisier
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Euclid
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- 80 -
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- 70 -
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Carolus Linnaeus
- 60 -
Francis Galton
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- 50 -
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- 40 -
Pierre Fermat
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JJ Thomson
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Archimedes
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- 30 -
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Richard Feynman
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- 20 -
Carl Sagan
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- 10 -
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