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Home > Category Index for Science Quotations > Category Index O > Category: Oxidation

Oxidation Quotes (6 quotes)

Combustible bodies do not reduce the metals by giving them phlogiston, as the Phlogistians suppose; nor buy uniting with, and separating their oxygen, as the Anti-phlogistians maintain.
Rejecting older theories of combustion.
Preface to An Essay on Combustion with a View to a New Art of Dyeing and Painting (1794), iv. In Marilyn Bailey Ogilvie and Joy Dorothy Harvey, The Biographical Dictionary of Women in Science (2000), 478.
Science quotes on:  |  Combustion (10)  |  Phlogiston (9)  |  Redox Reaction (2)  |  Reduction (35)

Dissection ... teaches us that the body of man is made up of certain kinds of material, so differing from each other in optical and other physical characters and so built up together as to give the body certain structural features. Chemical examination further teaches us that these kinds of material are composed of various chemical substances, a large number of which have this characteristic that they possess a considerable amount of potential energy capable of being set free, rendered actual, by oxidation or some other chemical change. Thus the body as a whole may, from a chemical point of view, be considered as a mass of various chemical substances, representing altogether a considerable capital of potential energy.
From Introduction to A Text Book of Physiology (1876, 1891), Book 1, 1.
Science quotes on:  |  Actual (34)  |  Altogether (6)  |  Body (193)  |  Capable (26)  |  Capital (15)  |  Character (82)  |  Characteristic (66)  |  Chemical (72)  |  Chemical Change (4)  |  Compose (7)  |  Consider (45)  |  Considerable (11)  |  Dissection (26)  |  Examination (60)  |  Free (59)  |  Made (14)  |  Mass (61)  |  Material (124)  |  Optical (3)  |  Physical (94)  |  Physiology (66)  |  Point Of View (26)  |  Potential Energy (3)  |  Render (17)  |  Represent (27)  |  Set (56)  |  Structural (8)  |  Various (25)  |  Whole (122)

It is the destiny of wine to be drunk, and it is the destiny of glucose to be oxidized. But it was not oxidized immediately: its drinker kept it in his liver for more than a week, well curled up and tranquil, as a reserve aliment for a sudden effort; an effort that he was forced to make the following Sunday, pursuing a bolting horse. Farewell to the hexagonal structure: in the space of a few instants the skein was unwound and became glucose again, and this was dragged by the bloodstream all the way to a minute muscle fiber in the thigh, and here brutally split into two molecules of lactic acid, the grim harbinger of fatigue: only later, some minutes after, the panting of the lungs was able to supply the oxygen necessary to quietly oxidize the latter. So a new molecule of carbon dioxide returned to the atmosphere, and a parcel of the energy that the sun had handed to the vine-shoot passed from the state of chemical energy to that of mechanical energy, and thereafter settled down in the slothful condition of heat, warming up imperceptibly the air moved by the running and the blood of the runner. 'Such is life,' although rarely is it described in this manner: an inserting itself, a drawing off to its advantage, a parasitizing of the downward course of energy, from its noble solar form to the degraded one of low-temperature heat. In this downward course, which leads to equilibrium and thus death, life draws a bend and nests in it.
The Periodic Table (1975), trans. Raymond Rosenthal (1984), 192-3.
Science quotes on:  |  Air (151)  |  Alcohol (16)  |  Atmosphere (63)  |  Blood (95)  |  Carbon Dioxide (20)  |  Chemical Energy (2)  |  Conservation Of Energy (25)  |  Death (270)  |  Energy (185)  |  Fatigue (3)  |  Heat (90)  |  Lactic Acid (2)  |  Liver (12)  |  Lung (17)  |  Molecule (125)  |  Muscle (32)  |  Oxygen (49)  |  Plant (173)  |  Sun (211)  |  Wine (23)

Once the forest has been removed and the swamp starts being drained, that organic matter begins to oxidise and give off continuing emissions. It’s sort of like the goose that keeps on giving.
From interview with Inter Press Service (IPS), with Stephen de Tarczynski, 'Environment—Indonesia: Deforestation Causing More Than Landslides' (9 Mar 2008).
Science quotes on:  |  Carbon Dioxide (20)  |  Climate Change (56)  |  Continuation (17)  |  Deforestation (39)  |  Drain (6)  |  Emission (16)  |  Forest (88)  |  Giving (11)  |  Global Warming (26)  |  Goose (9)  |  Keeping (9)  |  Organic (48)  |  Removal (10)  |  Swamp (5)

Without some idea of oxidation processes, of the chemical structure of food, and of the chemical reactions in digestion, visceral behavior is a blank. And without some understanding of visceral behavior, psychic behavior is up in the air.
From Why We Behave Like Human Beings (1925), xiv.
Science quotes on:  |  Behavior (49)  |  Biochemistry (46)  |  Blank (11)  |  Chemical Reaction (3)  |  Chemistry (239)  |  Food (139)  |  Process (201)  |  Psychology (125)  |  Structure (191)  |  Understanding (317)  |  Visceral (3)

[When combustion occurs,] one body, at least, is oxygenated, and another restored, at the same time, to its combustible state... This view of combustion may serve to show how nature is always the same, and maintains her equilibrium by preserving the same quantities of air and water on the surface of our globe: for as fast as these are consumed in the various processes of combustion, equal quantities are formed, and rise regenerated like the Phoenix from her ashes.
Fulhame believed 'that water was the only source of oxygen, which oxygenates combustible bodies' and that 'the hydrogen of water is the only substance that restores bodies to their combustible state.'
An Essay on Combustion with a View to a New Art of Dyeing and Painting (1794), 179-180. In Marilyn Bailey Ogilvie and Joy Dorothy Harvey, The Biographical Dictionary of Women in Science (2000), 478.
Science quotes on:  |  Combustion (10)  |  Conservation Of Matter (7)  |  Equilibrium (16)  |  Hydrogen (37)  |  Oxygen (49)  |  Redox Reaction (2)  |  Reduction (35)


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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