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Who said: “Every body perseveres in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by forces impressed.”
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Home > Category Index for Science Quotations > Category Index C > Category: Corrosion

Corrosion Quotes (3 quotes)

I took a glass retort, capable of containing eight ounces of water, and distilled fuming spirit of nitre according to the usual method. In the beginning the acid passed over red, then it became colourless, and lastly again all red: no sooner did this happen, than I took away the receiver; and tied to the mouth of the retort a bladder emptied of air, which I had moistened in its inside with milk of lime lac calcis, (i.e. lime-water, containing more quicklime than water can dissolve) to prevent its being corroded by the acid. Then I continued the distillation, and the bladder gradually expanded. Here-upon I left every thing to cool, tied up the bladder, and took it off from the mouth of the retort. I filled a ten-ounce glass with this air and put a small burning candle into it; when immediately the candle burnt with a large flame, of so vivid a light that it dazzled the eyes. I mixed one part of this air with three parts of air, wherein fire would not burn; and this mixture afforded air, in every respect familiar to the common sort. Since this air is absolutely necessary for the generation of fire, and makes about one-third of our common air, I shall henceforth, for shortness sake call it empyreal air, [literally fire-air] the air which is unserviceable for the fiery phenomenon, and which makes abut two-thirds of common air, I shall for the future call foul air [literally corrupted air].
Chemische Abhandlung von der Luft und dem Feuer (1777), Chemical Observations and Experiments on Air and Fire (1780), trans. J. R. Forster, 34-5.
Science quotes on:  |  Acid (18)  |  Air (151)  |  Bladder (2)  |  Burning (17)  |  Candle (19)  |  Dazzling (11)  |  Distillation (9)  |  Fire (117)  |  Flame (23)  |  Fume (5)  |  Generation (111)  |  Glass (35)  |  Light (246)  |  Lime (3)  |  Mixture (22)  |  Nitric Acid (2)  |  Oxygen (49)  |  Receiver (5)  |  Retort (2)  |  Spirit (113)  |  Vivid (16)  |  Water (244)

The influence of electricity in producing decompositions, although of inestimable value as an instrument of discovery in chemical inquiries, can hardly be said to have been applied to the practical purposes of life, until the same powerful genius [Davy] which detected the principle, applied it, by a singular felicity of reasoning, to arrest the corrosion of the copper-sheathing of vessels. this was regarded as by Laplace as the greatest of Sir Humphry's discoveries.
Reflections on the Decline of Science in England (1830), 16.
Science quotes on:  |  Sir Humphry Davy (45)  |  Electrolysis (7)  |  Invention (283)  |  Pierre-Simon Laplace (50)

There is no more potent antidote to the corroding influence of mammon than the presence in the community of a body of men devoted to science, living for investigation and caring nothing for the lust of the eyes and the pride of life.
In address at the University of Minnesota, "Teacher and Student" (1892) collected in Aequanimitas: With Other Addresses to Medical Students, Nurses and Practitioners of Medicine (1904), 29.
Science quotes on:  |  Antidote (6)  |  Care (73)  |  Community (65)  |  Eye (159)  |  Influence (110)  |  Investigation (123)  |  Life (917)  |  Lust (4)  |  Mammon (2)  |  Men Of Science (97)  |  Nothing (267)  |  Potency (5)  |  Presence (26)  |  Pride (45)


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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