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Home > Category Index for Science Quotations > Category Index I > Category: Injection

Injection Quotes (7 quotes)

A drug is a substance which, if injected into a rabbit, produces a paper.
Quoted in Albert Szent-Gyorgyi, 'Some Reminiscences of My Life as a Scientist', International Journal of Quantum Biology Symposium (1976), 3, 7.
Science quotes on:  |  Drug (40)  |  Publication (83)  |  Rabbit (6)

I feel like a white granular mass of amorphous crystals—my formula appears to be isomeric with Spasmotoxin. My aurochloride precipitates into beautiful prismatic needles. My Platinochloride develops octohedron crystals,—with fine blue florescence. My physiological action is not indifferent. One millionth of a grain injected under the skin of a frog produced instantaneous death accompanied by an orange blossom odor. The heart stopped in systole. A base—L3H9NG4—offers analogous reaction to phosmotinigstic acid.
In letter to George M. Gould (1889), collected in Elizabeth Bisland The Writings of Lafcadio Hearn (1922), Vol. 14, 89.
Science quotes on:  |  Acid (18)  |  Amorphous (3)  |  Base (43)  |  Blossom (9)  |  Blue (30)  |  Crystal (47)  |  Death (270)  |  Fluorescence (2)  |  Formula (51)  |  Frog (30)  |  Grain (24)  |  Granule (3)  |  Heart (110)  |  Isomer (5)  |  Needle (5)  |  Odor (7)  |  Orange (6)  |  Physiology (66)  |  Prismatic (2)  |  Reaction (59)  |  White (38)

I had gone on a walk on a fine Sabbath afternoon. I had entered the Green [of Glasgow] by the gate at the foot of Charlotte Street—had passed the old washing-house. I was thinking upon the engine at the time, and had gone as far as the herd's house, when the idea came into my mind that as steam was an elastic body it would rush into a vacuum, and if a communication were made between the cylinder and an exhausted vessel it would rush into it, and might be there condensed without cooling the cylinder. I then saw that I must get rid of the condensed steam and injection water if I used a jet, as in Newcomen's engine. Two ways of doing this occurred to me. First, the water might be run off by a descending pipe, if an outlet could be got at the depth of 35 or 36 feet, and any air might be extracted by a small pump. The second was to make the pump large enough to extract both water and air. ... I had not walked further than the Golf-house when the whole thing was arranged in my mind.
[In Robert Hart's words, a recollection of the description of Watt's moment of inspiration, in May 1765, for improving Thomas Newcomen's steam engine.]
In Robert Hart, 'Reminiscences of James Watt' (read 2 Nov 1857), Transactions of the Glasgow Archaeological Society (1859), Vol. 1, 1. Note that these are not the verbatim words of James Watt, but are only a recollection of them by Robert Hart, who is quoting as best he can from memory of a conversation he and his brother had with James Watt that took place over 43 years previously. In his Reminiscences, Hart explains, “I have accordingly thrown together the following brief narrative:— As these meetings took place forty-three years since, many observations that were made at the time may have escaped me at present; yet, when the same subjects are touched on, I have as distinct recollection of his treatment of them as if it were yesterday.”
Science quotes on:  |  Communication (58)  |  Condensation (8)  |  Cooling (3)  |  Cylinder (4)  |  Elastic (2)  |  Exhaustion (13)  |  Idea (440)  |  Improvement (67)  |  Invention (283)  |  Thomas Newcomen (2)  |  Steam (24)  |  Steam Engine (41)  |  Thinking (222)  |  Vacuum (29)  |  Vessel (21)

Intravenous injections of extract from dog's pancreas, removed from seven to ten weeks after ligation of the ducts, invariably exercises a reducing influence upon the percentage sugar of the blood and the amount of sugar excreted in the urine ... the extent and duration of the reduction varies directly with the amount of extract injected.
Frederick Grant Banting and Charles Herbert Best, 'The Internal Secretion of the Pancreas', Journal of Laboratory and Clinical Medicine, 1922, 7, 251-266.
Science quotes on:  |  Blood (95)  |  Insulin (8)  |  Pancreas (3)

Mutations and chromosomal changes arise in every sufficiently studied organism with a certain finite frequency, and thus constantly and unremittingly supply the raw materials for evolution. But evolution involves something more than origin of mutations. Mutations and chromosomal changes are only the first stage, or level, of the evolutionary process, governed entirely by the laws of the physiology of individuals. Once produced, mutations are injected in the genetic composition of the population, where their further fate is determined by the dynamic regularities of the physiology of populations. A mutation may be lost or increased in frequency in generations immediately following its origin, and this (in the case of recessive mutations) without regard to the beneficial or deleterious effects of the mutation. The influences of selection, migration, and geographical isolation then mold the genetic structure of populations into new shapes, in conformity with the secular environment and the ecology, especially the breeding habits, of the species. This is the second level of the evolutionary process, on which the impact of the environment produces historical changes in the living population.
Genetics and Origin of Species (1937), 13.
Science quotes on:  |  Chromosome (17)  |  Evolution (482)  |  Genetics (98)  |  Mutation (25)  |  Origin Of Species (39)

The belief is growing on me that the disease is communicated by the bite of the mosquito. … She always injects a small quantity of fluid with her bite—what if the parasites get into the system in this manner.
Letter (27 May 1896) to Patrick Manson. In The Great Malaria Problem and Its Solution: From the Memoirs of Ronald Ross (1988), 72. Ross asked for Manson’s opinion; the ellipsis above, in full is: “What do you think?” As quoted in William Derek Foster, A History of Parasitology (1965), 173. (It was for this insight that Ross was awarded a Nobel Prize.)
Science quotes on:  |  Belief (400)  |  Bite (11)  |  Disease (257)  |  Fluid (18)  |  Growing (15)  |  Manner (35)  |  Mosquito (12)  |  Parasite (28)  |  Quantity (35)  |  Small (97)  |  System (141)  |  Think (205)

What can I say of the perpetual motion machine that is my husband? What makes Francis run? It is a mysterious and propelling force which, injected into all mankind, would solve all the problems that plague this day and age.
Describing her husband, opthalmologist Francis Heed Adler.
Investigative Ophthalmology (Feb 1968), 7 No. 1, 4.
Science quotes on:  |  Francis Heed Adler (2)  |  Biography (227)


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
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Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
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Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
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Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
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Martin Fischer
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Karl Popper
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Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
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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
Archimedes
David Hume
- 30 -
Andreas Vesalius
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Richard Feynman
James Hutton
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Emile Durkheim
Benjamin Franklin
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- 20 -
Carl Sagan
James Maxwell
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- 10 -
Aristotle
John Watson
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Isaac Asimov
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