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Who said: “I have no satisfaction in formulas unless I feel their arithmetical magnitude.”
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Home > Category Index for Science Quotations > Category Index F > Category: Fluxion

Fluxion Quotes (3 quotes)

And indeed I am not humming,
Thus to sing of Cl-ke and C-ming,
Who all the universe surpasses
in cutting up and making gases;
With anatomy and chemics,
Metaphysics and polemics,
Analyzing and chirugery,
And scientific surgery …
H-slow's lectures on the cabbage
Useful are as roots of Babbage;
Fluxions and beet-root botany,
Some would call pure monotony.
Magazine
Punch in Cambridge (28 Jan 1834). In Mark Weatherall, Gentlemen, Scientists, and Medicine at Cambridge 1800-1940 (2000), Vol. 3,77. The professors named were William Clark (anatomy), James Cumming (chemistry) and Johns Stephens Henslow (botany).
Science quotes on:  |  Analysis (123)  |  Anatomy (59)  |  Charles Babbage (44)  |  Botany (47)  |  Cabbage (3)  |  Chemistry (239)  |  Cutting (5)  |  Gas (46)  |  John Stevens Henslow (2)  |  Humming (3)  |  Lecture (54)  |  Metaphysics (30)  |  Monotony (2)  |  Poem (85)  |  Root (48)  |  Surgery (39)  |  Surpassing (7)  |  Universe (563)  |  Usefulness (70)

In reality the origin of the notion of derivatives is in the vague feeling of the mobility of things, and of the greater or less speed with which phenomena take place; this is well expressed by the terms fluent and fluxion, which were used by Newton and which we may believe were borrowed from the ancient mathematician Heraclitus.
From address to the section of Algebra and Analysis, International Congress of Arts and Sciences, St. Louis (22 Sep 1904), 'On the Development of Mathematical Analysis and its Relation to Certain Other Sciences,' as translated by M.W. Haskell in Bulletin of the American Mathematical Society (May 1905), 11, 407.
Science quotes on:  |  Derivative (4)  |  Express (32)  |  Feeling (79)  |  Fluent (2)  |  Heraclitus (14)  |  Mathematician (177)  |  Mobility (5)  |  Sir Isaac Newton (258)  |  Nomenclature (129)  |  Origin (77)  |  Phenomenon (218)  |  Speed (27)  |  Term (87)  |  Vague (10)

In the beginning of the year 1665 I found the Method of approximating series & the Rule for reducing any dignity of any Bionomial into such a series. The same year in May I found the method of Tangents of Gregory & Slusius, & in November had the direct method of fluxions & the next year in January had the Theory of Colours & in May following I had entrance into ye inverse method of fluxions. And the same year I began to think of gravity extending to ye orb of the Moon & (having found out how to estimate the force with wch [a] globe revolving within a sphere presses the surface of the sphere) from Keplers rule of the periodic times of the Planets being in sesquialterate proportion of their distances from the center of their Orbs, I deduced that the forces wch keep the Planets in their Orbs must [be] reciprocally as the squares of their distances from the centers about wch they revolve: & thereby compared the force requisite to keep the Moon in her Orb with the force of gravity at the surface of the earth, & found them answer pretty nearly. All this was in the two plague years of 1665-1666. For in those days I was in the prime of my age for invention & minded Mathematicks & Philosophy more then than at any time since.
Quoted in Richard Westfall, Never at Rest: A Biography of Isaac Newton (1980), 143.
Science quotes on:  |  Binomial (2)  |  Calculus (23)  |  Color (78)  |  Differentiation (17)  |  Gravity (89)  |  Inverse Square Law (4)  |  Johannes Kepler (72)  |  Law Of Gravity (8)  |  Orbit (58)  |  Plague (34)  |  Prime (6)  |  Tangent (3)


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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