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Einstein

Albert. 1879--1955, US physicist and mathematician, born in Germany. He formulated the special theory of relativity (1905) and the general theory of relativity (1916), and made major contributions to the quantum theory, for which he was awarded the Nobel prize for physics in 1921. He was noted also for his work for world peace

Einstein

 

a unit of energy of electromagnetic radiation in the optical range. The einstein, which is used in photochemistry, is equal to NAhv, where NA is Avogadro’s number and hv is the energy of the photon. It was named in honor of Albert Einstein and is abbreviated E. When a radiant energy of 1 E is absorbed, the photochemical conversion of 1 mole of the substance should occur, according to Einstein’s law of photochemical equivalence. It follows from the definition of the einstein that the dimension of the unit is determined by the radiation frequency (v) (h is Planck’s constant).

einstein

[′īn‚stīn]
(physics)
A unit of light energy used in photochemistry, equal to Avogadro's number times the energy of one photon of light of the frequency in question.
References in periodicals archive ?
There are so many ways of "rolling up" the ten dimensions of string theory into the four dimensions of space-time, in which theoreticians have lived since the Einsteinian revolution, that the number of effective theories encapsulated in string theory is more than astronomical.
For the FLRW metric, we first derive a modified Friedmann equation from the five-dimensional Fully covariant Kaluza-Klein theory with a scalar field (Zhang, ApJL 2006, 636, L61 and references therein), which unifies the four-dimensional Einsteinian general theory of relativity and Maxwellian electromagnetic theory.
MY OTHER half, Riki, is convinced that our three year-old son Ben is a genius of Einsteinian proportions.
Kuhn builds his argument around three scientific revolutions, namely the Copernican revolution in 16th and 17th century astronomy, the Darwinian revolution in 19th century biology, and the Einsteinian revolution in 20th century physics.
The Newtonian conception of physics is more intuitive to us than the Einsteinian conception of physics, which in turn seems more intuitive than a universe of strings and branes that cosmology has been handing us lately.
Whittemore's backdrop is the creation of the state of Israel while Durrell (an exception in that he does not identify a single historical moment of crisis) uses an Einsteinian universe as the setting for his action.
Apparently, Einsteinian theory posits that time is relative, and that its perceived passing changes relative to what we are doing and where we are.
He surveys some of its recent triumphs--such as dissolving the dichotomy between Einsteinian and Minkowskian relativity--and emphasizes the interdisciplinary collaborations required to further develop the mathematical innovation and its applications.
Even today, American-branded economists leave it for others who will come after to have the discipline's Einsteinian moments.
Vibrational medicine is based on an Einsteinian paradigm which "sees human beings as networks of complex energy fields that interface with physical/cellular systems" (Gerber 2001: 39).