fermi

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A surname of Italian origin
The physicist Enrico Fermi
A unit of length equal to one femtometer or femtometre (10−15 m)
{i} family name; Enrico Fermi (1901-1954), Italian-born United States physicist, first person to achieve a nuclear chain reaction, 1938 Nobel Laureate in Physics
A unit of length equal to one femtometer or femtometre (10[-15] m)
{i} (Physics) metric unit of length for measuring nuclear distances (also femtometer)
a metric unit of length equal to one quadrillionth of a meter
Italian nuclear physicist (in the United States after 1939) who worked on artificial radioactivity caused by neutron bombardment and who headed the group that in 1942 produced the first controlled nuclear reaction (1901-1954)
Fermi Paradox
Alternative spelling of Fermi paradox
Fermi energies
plural form of Fermi energy
Fermi energy
The highest energy of a particle that is part of a many-particle system of identical fermions in its ground state
Fermi paradox
The seeming contradiction, serving as a challenge to believers in the existence of advanced lifeforms throughout the universe, that there is no scientific evidence that extraterrestrial civilizations have tried to visit or communicate with us

Fermi argued that the fact that aliens don't seem to be hanging out with us here on Earth (the tabloid stories aside) strongly contradicts the assumed existence of intelligent life elsewhere in our galaxy, a problem that came to be known as the Fermi Paradox.

Fermi surface
An abstract boundary, of constant energy, useful for predicting the thermal, electrical, magnetic, and optical properties of metals, semimetals, and doped semiconductors
Fermi surfaces
plural form of Fermi surface
Fermi-Dirac statistics
In quantum mechanics, one of two possible ways (the other being Bose-Einstein statistics) in which a system of indistinguishable particles can be distributed among a set of energy states. Each available discrete state can be occupied by only one particle. This exclusiveness accounts for the structure of atoms, in which electrons remain in separate states rather than collapsing into a common state. It also accounts for some aspects of electrical conductivity. This theory of statistical behaviour was developed first by Enrico Fermi and then by P.A.M. Dirac (1926-27). The statistics apply only to particles such as electrons that have half-integer values of spin; the particles are called fermions
fermi-dirac statistics
(physics) law obeyed by a systems of particles whose wave function changes when two particles are interchanged (the Pauli exclusion principle applies)
Enrico Fermi
a US scientist, born in Italy, who won a Nobel Prize for his work on radioactivity and produced the first controlled nuclear reaction (=a process in which the parts in the centre of an atom are rearranged to form new substances) (1901-54). born Sept. 29, 1901, Rome, Italy died Nov. 28, 1954, Chicago, Ill., U.S. Italian-born U.S. physicist. As a professor at the University of Rome, he began the work, later fully developed by P.A.M. Dirac, that led to Fermi-Dirac statistics. He developed a theory of beta decay that applies to other reactions through the weak force, which was not improved until 1957, when the weak force was found not to conserve parity. He discovered neutron-induced radioactivity, for which he was awarded a 1938 Nobel Prize. After receiving the award in Sweden, he never returned to fascist Italy but instead moved directly to the U.S., where he joined the faculty of Columbia University and soon became one of the chief architects of practical nuclear physics. A member of the Manhattan Project, he was an important figure in the development of the atomic bomb; in 1942 he directed the first controlled nuclear chain reaction. He received the Congressional Medal of Merit in 1946. In 1954 he became the first recipient of the U.S. government's Enrico Fermi Award. Element number 100, fermium, was named in his honour
Enrico Fermi
{i} (1901-1954) Italian-born United States physicist, first person to achieve a nuclear chain reaction, 1938 Nobel Laureate in Physics
fermi

    Hyphenation

    Fer·mi

    Turkish pronunciation

    fırmi

    Pronunciation

    /ˈfərmē/ /ˈfɜrmiː/

    Videos

    ... Switzerland, and also at Fermi Lab outside Chicago, where they have anti-electrons circulating ...
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