Numbers Representing Scientific Quantities
- Avogadro constant: NA = 6.0221417930... ×1023 mol−1
- Coulomb's constant: k e = 8.987551787368...
- Electronvolt: eV = 1.60217648740... ×10–19 J
- Electron relative atomic mass: Ar(e) = 0.0005485799094323...
- Fine structure constant: α = 0.007297352537650...
- Gravitational constant: G = 6.67384...
- Molar mass constant: Mu = 0.001 kg/mol
- Planck constant: h = 6.6260689633... ×10–34 Js
- Rydberg constant: R∞ = 10973731.56852773... m−1
- Speed of light in vacuum: c = 299792458 m/s
- Stefan-Boltzmann constant: σ = 5.670400×10−8 W • m−2 • K−4
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Famous quotes containing the words numbers, representing, scientific and/or quantities:
“All experience teaches that, whenever there is a great national establishment, employing large numbers of officials, the public must be reconciled to support many incompetent men; for such is the favoritism and nepotism always prevailing in the purlieus of these establishments, that some incompetent persons are always admitted, to the exclusion of many of the worthy.”
—Herman Melville (1819–1891)
“He who has learned what is commonly considered the whole art of painting, that is, the art of representing any natural object faithfully, has as yet only learned the language by which his thoughts are to be expressed.”
—John Ruskin (1819–1900)
“The conclusion suggested by these arguments might be called the paradox of theorizing. It asserts that if the terms and the general principles of a scientific theory serve their purpose, i. e., if they establish the definite connections among observable phenomena, then they can be dispensed with since any chain of laws and interpretive statements establishing such a connection should then be replaceable by a law which directly links observational antecedents to observational consequents.”
—C.G. (Carl Gustav)
“The Walrus and the Carpenter
Were walking close at hand:
They wept like anything to see
Such quantities of sand:
“If this were only cleared away,”
They said, “it would be grand!”
“If seven maids with seven mops
Swept it for half a year,
Do you suppose,” the Walrus said,
“That they could get it clear?”
“I doubt it,” said the Carpenter,
And shed a bitter tear.”
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)