Value of The Rydberg Constant and Rydberg Unit of Energy
According to the 2010 CODATA the constant is:
where is the rest mass of the electron, is the elementary charge, is the permittivity of free space, is the Planck constant, and is the speed of light in a vacuum.
This constant is often used in atomic physics in the form of the Rydberg unit of energy:
Read more about this topic: Rydberg Constant
Famous quotes containing the words constant, unit and/or energy:
“With wavering steps does fickle fortune stray,
Nowhere she finds a firm and fixed abode;
But now all smiles, and now again all frowns,
She’s constant only in inconstancy.”
—Ovid (Publius Ovidius Naso)
“During the Suffragette revolt of 1913 I ... [urged] that what was needed was not the vote, but a constitutional amendment enacting that all representative bodies shall consist of women and men in equal numbers, whether elected or nominated or coopted or registered or picked up in the street like a coroner’s jury. In the case of elected bodies the only way of effecting this is by the Coupled Vote. The representative unit must not be a man or a woman but a man and a woman.”
—George Bernard Shaw (1856–1950)
“Viewed narrowly, all life is universal hunger and an expression of energy associated with it.”
—Mary Ritter Beard (1876–1958)