| podobné slovo | definícia |
particle
(mass) | particle
- častica, čiastočka |
alpha particle
(encz) | alpha particle,alfa částice |
antiparticle
(encz) | antiparticle,antičástice n: Zdeněk Brož |
beta particle
(encz) | beta particle,částice beta |
colloidal particle
(encz) | colloidal particle,koloidní částice [eko.] RNDr. Pavel Piskač |
destabilization of particles
(encz) | destabilization of particles,destabilizace částic
(vodárenství) [eko.] RNDr. Pavel Piskač |
dispersed particles
(encz) | dispersed particles, n: |
elementary particle
(encz) | elementary particle,elementární částice Zdeněk Brož |
fundamental particle
(encz) | fundamental particle, n: |
heavy particle
(encz) | heavy particle, n: |
lambda particle
(encz) | lambda particle, n: |
particle
(encz) | particle,částečka n: Zdeněk Brožparticle,částice n: |
particle accelerator
(encz) | particle accelerator, n: |
particle beam
(encz) | particle beam, n: |
particle board
(encz) | particle board,dřevotřísková deska web |
particle physics
(encz) | particle physics, n: |
particleboard
(encz) | particleboard, |
particles
(encz) | particles,částice n: pl. macska |
psi particle
(encz) | psi particle, n: |
quasiparticle
(encz) | quasiparticle, n: |
small-particle pollution
(encz) | small-particle pollution, n: |
strange particle
(encz) | strange particle, n: |
subatomic particle
(encz) | subatomic particle, n: |
tau-minus particle
(encz) | tau-minus particle, n: |
tau-plus particle
(encz) | tau-plus particle, n: |
wave-particle duality
(encz) | wave-particle duality, n: |
weakly interacting massive particle
(encz) | weakly interacting massive particle, n: |
alpha particle
(gcide) | alpha particle \alpha particle\ (Physics & Chem.)
a particle emitted at high velocity from certain radioactive
substances. It is identical to the helium nucleus, consisting
of two protons and two neutrons. Rays of such particles are
called alpha rays.
[Webster 1913 Suppl. +PJC] |
Integrant particles
(gcide) | Integrant \In"te*grant\, a. [L. integrans, -antis, p. pr. of
integrare to make whole, renew: cf. F. int['e]grant. See
Integrate.]
Making part of a whole; necessary to constitute an entire
thing; integral. --Boyle.
[1913 Webster]
All these are integrant parts of the republic. --Burke.
[1913 Webster]
Integrant parts, or Integrant particles, of bodies, those
smaller particles into which a body may be reduced without
loss of its original constitution, as by mechanical
division.
[1913 Webster] |
Particle accelerator
(gcide) | Particle accelerator \Par"ti*cle ac*cel"er*a*tor\, n. (Physics)
A large and expensive scientific instrument used by
physicists to accelerate elementary particles (such as
protons or electrons) to speeds near that of light, for the
purpose of investigating the fundamental properties of
matter; sometimes also called an atom smasher, since the
particles thus accelerated are often directed at targets of
atoms which are fragmented by the impact into their more
fundamental component particles.
Note: The particles generated by impact of a beam in an
accelerator on its target are detected by various types
of detecting apparatus, and procedures are required to
sort and identify the many particles created. The
fundamental particles generated by impacts in a
particle accelerator are often those not actually
present inside atoms; and in certain types of particle
accelerator, such as the colliding beam accelerator,
the impact which generates energetic particles is with
other fundamental particles, and not with atoms.
[PJC] |
particle board
(gcide) | hardboard \hard"board`\ n.
a cheap hard material made from wood chips that are pressed
together and bound with synthetic resin to form sheets, used
in construction and various other purposes; -- called also
particle board and chipboard.
Syn: chipboard.
[WordNet 1.5]fiberboard \fiberboard\ n.
a type of wallboard composed of wood chips or shavings bonded
together with resin and compressed into rigid sheets, calle
also particle board.
Syn: fibreboard, particle board.
[WordNet 1.5] Fibered |
Particle physics
(gcide) | Particle physics \Par"ti*cle phys`ics\, n.
That branch of physics which investigates the nature of
matter, and in particular the properties and behavior of the
elementary particles (fundamental particles), of which matter
is composed. Included in this field is the more specialized
branch of high-energy physics.
[PJC] |
tau-minus particle
(gcide) | lepton \lepton\ n. (Physics)
an elementary particle that participates in weak interactions
but does not participate in the strong interaction; it has a
baryon number of 0. Some known leptons are the electron,
the negative muon, the tau-minus particle, and the
neutrinos associated with each of these particles.
[WordNet 1.5 +PJC] |
alpha particle
(wn) | alpha particle
n 1: a positively charged particle that is the nucleus of the
helium atom; emitted from natural or radioactive isotopes |
antiparticle
(wn) | antiparticle
n 1: a particle that has the same mass as another particle but
has opposite values for its other properties; interaction
of a particle and its antiparticle results in annihilation
and the production of radiant energy |
beta particle
(wn) | beta particle
n 1: a high-speed electron or positron emitted in the decay of a
radioactive isotope |
dispersed particles
(wn) | dispersed particles
n 1: (of colloids) a substance in the colloidal state [syn:
dispersed phase, dispersed particles] |
elementary particle
(wn) | elementary particle
n 1: (physics) a particle that is less complex than an atom;
regarded as constituents of all matter [syn: {elementary
particle}, fundamental particle] |
fundamental particle
(wn) | fundamental particle
n 1: (physics) a particle that is less complex than an atom;
regarded as constituents of all matter [syn: {elementary
particle}, fundamental particle] |
heavy particle
(wn) | heavy particle
n 1: any of the elementary particles having a mass equal to or
greater than that of a proton and that participate in
strong interactions; a hadron with a baryon number of +1
[syn: baryon, heavy particle] |
identification particle
(wn) | identification particle
n 1: a tiny particle of material that can be added to a product
to indicate the source of manufacture |
j particle
(wn) | J particle
n 1: a neutral meson with a large mass [syn: J particle, {psi
particle}] |
k particle
(wn) | K particle
n 1: an unstable meson produced as the result of a high-energy
particle collision [syn: kaon, kappa-meson, k-meson,
K particle] |
lambda particle
(wn) | lambda particle
n 1: an electrically neutral baryon with isotopic spin 1 [syn:
lambda particle, lambda hyperon] |
particle
(wn) | particle
n 1: (nontechnical usage) a tiny piece of anything [syn: atom,
molecule, particle, corpuscle, mote, speck]
2: a body having finite mass and internal structure but
negligible dimensions [syn: particle, subatomic particle]
3: a function word that can be used in English to form phrasal
verbs |
particle accelerator
(wn) | particle accelerator
n 1: a scientific instrument that increases the kinetic energy
of charged particles [syn: accelerator, {particle
accelerator}, atom smasher] |
particle beam
(wn) | particle beam
n 1: a collimated flow of particles (atoms or electrons or
molecules) |
particle board
(wn) | particle board
n 1: wallboard composed of wood chips or shavings bonded
together with resin and compressed into rigid sheets [syn:
fiberboard, fibreboard, particle board] |
particle detector
(wn) | particle detector
n 1: a chamber in which particles can be made visible |
particle physics
(wn) | particle physics
n 1: the branch of physics that studies subatomic particles and
their interactions [syn: particle physics, {high-energy
physics}, high energy physics] |
psi particle
(wn) | psi particle
n 1: a neutral meson with a large mass [syn: J particle, {psi
particle}] |
quasiparticle
(wn) | quasiparticle
n 1: a quantum of energy (in a crystal lattice or other system)
that has position and momentum and can in some respects be
regarded as a particle |
small-particle pollution
(wn) | small-particle pollution
n 1: air pollution caused by fine particles of soot (as from
power plants or diesel engines) |
strange particle
(wn) | strange particle
n 1: an elementary particle with non-zero strangeness |
subatomic particle
(wn) | subatomic particle
n 1: a body having finite mass and internal structure but
negligible dimensions [syn: particle, {subatomic
particle}] |
tau-minus particle
(wn) | tau-minus particle
n 1: a lepton of very great mass [syn: tauon, {tau-minus
particle}] |
tau-plus particle
(wn) | tau-plus particle
n 1: an antilepton of very great mass [syn: antitauon, {tau-
plus particle}] |
wave-particle duality
(wn) | wave-particle duality
n 1: (physics) the property of matter and electromagnetic
radiation that is characterized by the fact that some
properties can be explained best by wave theory and others
by particle theory [syn: duality, {wave-particle
duality}] |
weakly interacting massive particle
(wn) | weakly interacting massive particle
n 1: a hypothetical subatomic particle of large mass that
interacts weakly with ordinary matter through gravitation;
postulated as a constituent of the dark matter of the
universe [syn: weakly interacting massive particle,
WIMP] |
alpha particle
(foldoc) | bit rot
alpha particle
bit decay
A hypothetical disease the existence of which has
been deduced from the observation that unused programs or
features will often stop working after sufficient time has
passed, even if "nothing has changed". The theory explains
that bits decay as if they were radioactive. As time passes,
the contents of a file or the code in a program will become
increasingly garbled.
People with a physics background tend to prefer the variant
"bit decay" for the analogy with particle decay.
There actually are physical processes that produce such
effects (alpha particles generated by trace radionuclides in
ceramic chip packages, for example, can change the contents of
a computer memory unpredictably, and various kinds of subtle
media failures can corrupt files in mass storage), but they
are quite rare (and computers are built with error detection
circuitry to compensate for them). The notion long favoured
among hackers that cosmic rays are among the causes of such
events turns out to be a myth.
Bit rot is the notional cause of software rot.
See also computron, quantum bogodynamics.
[Jargon File]
(1998-03-15)
|
alpha particles
(jargon) | alpha particles
n.
See bit rot.
|