β-particle

listen to the pronunciation of β-particle
Английский Язык - Турецкий язык

Определение β-particle в Английский Язык Турецкий язык словарь

particle
{i} parçacık

Bazı bilim adamları yer çekiminin ışık hızıyla seyahat eden graviton denilen parçacıklardan yapıldığını düşünüyor. - Some scientists think that gravity is made up of particles called gravitons which travel at the speed of light.

Büyük Hadron Çarpıştırıcısı dünyanın en büyük parçacık hızlandırıcısıdır. - The Large Hadron Collider is the world's largest particle accelerator.

particle
{i} tanecik
smoothed particle hydrodynamics
Düzleştirilmiş tanecik hidrodinamiği
particle
{i} ilgeç
dust particle
toz zerresi
dust particle
toz kalıntısı
foreign particle
yabancı tanecik
particle
(Dilbilim) ilgec
particle
parça

Her tür atomun içinde protonlar, nötronlar ve elektronlar denilen belirli benzersiz parçacıkları vardır. - Each kind of atom has a certain unique number of particles called protons, neutrons, and electrons in it.

Higgs bozonu, Tanrı parçacığı olarak adlandırıldı. - The Higgs boson has been called the God particle.

particle
{i} molekül
particle
(İnşaat) toz

Tom aylardır klavyesini temizlememişti, ve o tozla, gıda parçalarıyla ve Allah bilir başka neyle dolmuştu. - Tom hadn't cleaned his keyboard for months, and it was clogged with dust, food particles, and God knows what else.

particle board
yonga levha
particle board
(İnşaat) lif levha
particle board
(Matbaacılık, Basımcılık) mika
particle displacement
(Bilgisayar) parçacık yer değiştirmesi
particle orientation
(Bilgisayar) parçacık yönelimi
particle velocity
(Askeri) parçacık hızı
strange particle
(Fizik) acayip parçacık
particle
{i} edat

Bu edat bir ismi bir fiile dönüştürür. - This particle turns a noun into a verb.

accelerated particle
hızlandırılmış tanecik
alpha particle
alfa taneciği
alpha particle
alfa parçacığı
beta particle
beta parçacığı
cascade particle
kaskat tanecik
charged particle
yüklü parçacık
charmed particle
tılsımlı parçacık
effective particle density
efektif parçacık yoğunluğu
elementary particle
temel parçacık
elementary particle
öz parçacık
fundamental particle
temel parçacık
gamma particle
gama parçacığı
heavy particle
ağır parçacık
independent particle model
bağımsız tanecik modeli
interrogative particle
soru eki
ionizing particle
iyonlaştırıcı parçacık
particle
zerre
particle
tanımlık
particle
tane

Kar taneleri kar parçacıklarıdır. - Snowflakes are particles of snow.

particle
bağlaç
particle
işlevsel sözcük
particle accelerator
tanecik hızlandırıcı
particle accelerator
parçacık hızlandırıcısı
particle orbit
tanecik yörüngesi
particle size
parçacık büyüklüğü
particle size
tane büyüklüğü
particle size analysis
tane büyüklüğü analizi
particle theory of light
ışığın tanecik teorisi
particle velocity
tanecik hızı
solid particle
katı tanecik
Particle image velocimeter
Parçacık görüntü hız ölçeri
Particle image velocimetry
Parçacık görüntü hız ölçümü
alpha particle
elektriksel yükü pozitif olan, iki nötron ve iki protondan oluşan, Uranyum ve Radyum da dahil olmak üzere bazı radyoaktif elementlerden yayınan küçük, çok yüksek hızlı ve elektriksel yüklü parçacık
bare particle
çıplak parçacık
delta particle
delta parçacığı
independent particle
model bağımsız tanecik modeli
negation particle
olumsuzluk edatı, olumsuzluk öğesi
nobiliary particle
soylulara ait parçacık
particle
{i} takı
particle beam
parçacık demeti
particle board
yonga
particle emission
partikül emisyonu
particle flux density
tanecik akı yoğunluğu
particle oscillation
parçacık salınımı
particle physics
Parçacık fiziği
particle radiation
parçacık ışınımı
particle shape
parçacık biçimi, tane biçimi
particle size
parçacık büyüklüğü, tane büyüklüğü
particle size distribution
tane büyüklüğü dağılımı
particle swarm optimization
(Bilgisayar) Parçacık sürü optimizasyonu
recoil particle
geritepki parçacığı
relating to a subatomic particle
bir atomaltı parçacık ile ilgili
relativistic particle
bağıl parçacık
sigma particle
sigma taneciği
vault particle
hazne partikülleri
angular particle
köşeli tanecik
cement particle
çimento zerresi
cement particle
çimento partikülü
charged particle
(Nükleer Bilimler) yüklü parçacık,yüklü tanecik
coated particle
(Nükleer Bilimler) kaplanmış parçacık
differential particle flux density
(Nükleer Bilimler) diferansiyel parçacık akı yoğunluıu
directly ionizing particle
(Nükleer Bilimler) doğrudan iyonlayıcı parçacık
elementary particle
(Nükleer Bilimler) elemanter parçacık,temel parçacık
falling particle
(Askeri) çökelen parçacık
indirectly ionizing particle
(Çevre) dolaylı iyonlayan parçacık
instantaneous particle velocity
anlik parcacik hizi
magnetic particle inspection
(Nükleer Bilimler) magnetik parçacık muayenesi
mobility of a charged particle
(Bilgisayar) devingenlik yüklü parçacık
negation particle
(Dilbilim) olumsuzluk eki
nuclear particle
(Nükleer Bilimler) nükleer tanecik
particle
edat/tanecik
particle
nesne,partikül
particle
danecik
particle
(Tıp) Tanecik, atom, cüz, zerre, partikül
particle
(Biyoloji) partikül
particle
{i} dilb. edat; ek, takı
particle
ek
particle beam weapon
(Askeri) parçacık ışın silahı
particle beam; patrol boat; President's budget
(Askeri) parçacık ışın; küçük karakol/devriye botu; Başkanın bütçesi
particle cuurent density
(Nükleer Bilimler) parçacık akım yoğunluğu
particle diameter
dane çapı
particle diameter
(Askeri) parçaçık çapı
particle displacement
parcacik yer degistirmesi
particle emmision
(Nükleer Bilimler) parçacık yayınımı
particle fluence
(Nükleer Bilimler) tanecik akımı
particle fluence
(Nükleer Bilimler) parçacık integral akı
particle fluence rate
(Nükleer Bilimler) parçacık integral akı hızı
particle fluence rate
(Nükleer Bilimler) tanecik akım
particle flux density
(Nükleer Bilimler) parçacık akı yoğunluğu,tanecik akı yoğunluğu
particle orientation
parcacik yonelimi
particle shape
(İnşaat) parça şekli
particle size
(Nükleer Bilimler) parçacık boyutu
particle size distribution
dane boyu dağılımı
particle size of powder
toz tane büyüklüğü
particle trajectory model
(Denizbilim,Meteoroloji) parçacık izleme modeli
particle ınduced xrf
(Nükleer Bilimler) (pixe) parçacık uyarımlı xrf
projectile particle
(Nükleer Bilimler) mermi parçacık
recoil particle
(Nükleer Bilimler) geri tepen parçacık
rounded particle
yuvarlatılmış tanecik
solid particle
sert tanecik
spherical earth particle
küresel toprak parçacığı
strange particle
(Nükleer Bilimler) acaip parçacık
suspended particle
ne yüzen ne de batan
suspended particle
asılı parça
suspended particle
askıda kalan
suspended particle
(Askeri) asılı parçacık
virtual particle
(Nükleer Bilimler) hayali parçacık
Английский Язык - Английский Язык
beta particle
God particle
The Higgs boson
J/psi particle
a subatomic particle with an unusually long lifetime and a large mass; a bound state of a charm quark and a anti-charm quark
Janus particle
A spherical microscopic particle which has hemispheres with sharply differing properties, such as one hydrophilic hemisphere and one hydrophobic hemisphere
Majorana particle
A particle that is its own antiparticle and thus capable of self-annihilation
Planck particle
A hypothetical particle having physical quantities on the Planck scale, most importantly being one Planck mass in mass. Sometimes also called a planckon
alpha particle
A positively charged nucleus of a helium-4 atom (consisting of two protons and two neutrons), emitted as a consequence of radioactivity
beta particle
An energetic electron or positron produced as the result of a nuclear reaction or nuclear decay
charged particle
any particle, especially a subatomic particle, that carries an electric charge
charged particle
an ion
composite particle
any particle that is not an elementary particle, namely hadrons, atomic nuclei, atoms and molecules
elementary particle
fundamental particle; any of the subatomic particles that does not consist of other, smaller particles; the gauge bosons, leptons and quarks
fundamental particle
any of the subatomic particles that does not consist of other, smaller particles; the gauge bosons, leptons and quarks
lambda particle
lambda baryon
nobiliary particle
a preposition found in names, indicating nobility

Claus von Amsberg.

particle
A word that has a particular grammatical function but does not obviously belong to any particular part of speech, such as the word to in English infinitives or O as the vocative particle
particle
An elementary particle or subatomic particle
particle
A body with very small size; a fragment
particle accelerator
A device that accelerates electrically charged particles to extremely high speeds, for the purpose of inducing high energy reactions or producing high energy radiation
particle accelerators
plural form of particle accelerator
particle beam
A beam of atoms, ions or subatomic particles that has been accelerated by some device and collimated by magnets and/or electrostatic lenses
particle board
a structural material manufactured from wood particles (such as chips and shavings) by pressing, and binding through resin
particle boards
plural form of particle board
particle energies
plural form of particle energy
particle energy
The sum of a particle's potential energy, kinetic energy and rest energy
particle mechanics
The study of the motion of individual particles
particle physics
A branch of physics that studies the elementary constituents of matter and radiation, and the interactions between them
particle theory
atomic theory
subatomic particle
any of many units of matter smaller than an atom
ultrafine particle
A particle with diameter less than about 100 nanometers (nm)
upsilon particle
Any of a number of bound states of a heavy quark and its antiquark, especially that formed from a bottom quark and an anti-bottom quark
virtual particle
a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum
wave-particle duality
The concept applying to all matter and radiation, but most evident in light and particles such as the electron, that properties of waves and of particles are exhibited simultaneously
weakly interacting massive particle
A hypothetical class of particle, proposed to explain the dark matter problem
smoothed particle hydrodynamics
Smoothed-particle hydrodynamics (SPH) is a computational method used for simulating fluid flows
particle
{n} a small part or word, an atom
Particle image velocimetry
Particle image velocimetry (PIV) is an optical method used to measure velocities and related properties in fluids. The fluid is seeded with particles which, for the purposes of PIV, are generally assumed to faithfully follow the flow dynamics. It is the motion of these seeding particles that is used to calculate velocity information
particle board
Material made in rigid sheets from compressed wood chips and resin and used for furniture and in buildings
particle swarm optimization
(Bilgisayar) Particle swarm optimization (PSO) is a stochastic, population-based computer problem-solving algorithm; it is a kind of swarm intelligence that is based on social-psychological principles and provides insights into social behavior, as well as contributing to engineering applications
B particle
Either of two subatomic particles in the meson family, one neutral and one positively charged, both of which have masses 10,331 times that of an electron and average lifetimes of 1.6 × 10- seconds
D particle
Either of two subatomic particles in the meson family, one neutral and one positively charged, having masses 3,649 and 3,658 times that of the electron and average lifetimes of 4.2 × 10- seconds, respectively
Higgs particle
or Higgs boson Carrier of an all-pervading fundamental field (Higgs field) that is hypothesized as a means of endowing mass on some elementary particles through its interactions with them. It was named for Peter W. Higgs born 1929 of the University of Edinburgh, one of those who first postulated the idea. The Higgs mechanism explains why the carriers of the weak force are heavy, while the carrier of the electromagnetic force has a mass of zero. There is no direct experimental evidence for the existence of either the Higgs particle or the Higgs field
W particle
Electrically charged subatomic particle that transmits the weak force, which governs radioactive decay (see radioactivity) in some atomic nuclei. The discovery of the W particle in 1983 by teams led by Carlo Rubbia and Simon van der Meer confirmed the electroweak theory, which explains that the electromagnetic force and the weak force are manifestations of the same interaction. The weak force is exchanged via three types of particles, two charged and one neutral. The charged particles are designated W^+ and W^- according to the sign of their charge, and the neutral particle is the Z particle. The W particle has a mass about 80 times that of the proton, which gives the weak force a very short range
Z particle
Electrically neutral carrier of the weak force and the neutral partner of the electrically charged W particle. It is nearly 100 times more massive than the proton and has a lifetime of only about 10^-25 second. Z particles were first observed in 1983 by Carlo Rubbia and Simon van der Meer at CERN. Further studies have shown a natural variation in mass that is related to the particle's lifetime through the uncertainty principle. Measurements show that when Z particles decay to neutrino-antineutrino pairs (see pair production), they produce only three types of lightweight neutrino, indicating that there are only three sets each of leptons and quarks
alpha particle
A helium-4 nucleus, especially when emitted from the nucleus of a radioactive atom
alpha particle
A positively charged particle, emitted by certain radioactive materials, made up of two neutrons and two protons bound together, hence identical with the nucleus of the helium atom; the least penetrating of the three common types of radiation (alpha, beta, gamma), it is stopped by a sheet of paper Not dangerous to plants, animals or humans unless the alpha-emitting substance has entered the body
alpha particle
A positively charged nuclear particle identical with the nucleus of a helium atom It consists of two protons and two neutrons and is ejected at high speed from the nucleus of an atom in certain radioactive transformations
alpha particle
A positively charged particle emitted from the nucleus of an atom having the same charge and mass as that of a helium nucleus (two protons and two neutrons)
alpha particle
A positively charged particle emitted in the radioactive decay of certain radioactive atoms An alpha particle is identical to the nucleus of the helium atom *
alpha particle
a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes
alpha particle
A small electrically charged particle of very high velocity thrown off by many radioactive matierials, including uranium and radium It is identical with the nucleus of a helium atom and is made when an atom is fissioned Also see: Beta particle, Gamma rays
alpha particle
A positively-charged particle from the nucleus of an atom, emitted during radioactive decay
alpha particle
A positively charged particle consisting of two protons and two neutrons emitted by one of the radioactive elements An alpha particle is equivalent to an He2+ ion
alpha particle
A particle consisting of two protons and two neutrons, produced during alpha decay Identical to the nucleus of a 4He atom
alpha particle
helium nucleus emitted from a heavy radioactive element
alpha particle
The nuclei of a helium (with two neutrons and two protons each) that are discharged by radioactive decay of many heavy elements, such as uranium-238 and plutonium-239
alpha particle
A positively-charged particle from the nucleus of an atom, emitted during radioactive decay Alpha particles are helium nuclei, with 2 protons and 2 neutrons
alpha particle
Two neutrons and two protons bound as a single particle emitted from the nucleus of certain radioactive isotopes in the process of decay or disintegration
alpha particle
A particle emitted spontaneously from the nuclei of some radioactive elements It is identical with a helium nucleus, having a mass of four units and an electric charge of two positive units See Radioactivity
alpha particle
A positively charged particle emitted by certain radioactive materials [see radioactive materials definition] It is made up of two neutrons [see neutrons definition] and two protons [see protons definition] bound together and, hence, is identical to the nucleus of a helium atom It has low-penetrating power and short range The most energetic alpha particle will generally fail to penetrate the skin (Health Physics and Radiological Health Handbook Nuclear Lectern Associates, 1984 ) Back to Top
alpha particle
A positively charged particle, indistinguishable from a helium atom nucleus and consisting of two protons and two neutrons
alpha particle
A specific particle ejected from a radioactive atom It has low penetrating power and short range Alpha particles will generally fail to penetrate the skin Alpha-emitting atoms can cause health effects if introduced into the lungs or wounds
alpha particle
A particle from the nucleus of an atom with a positive charge that is emitted during radioactive decay They consist of helium nuclei with 2 protons and 2 neutrons
alpha particle
A 4He nucleus It is made up of two neutrons and two protons It is the least penetrating of the three common forms of radiation, being stopped by a thin sheet of paper It is not dangerous to living things unless the alpha-emitting substance is inhaled or ingested or comes into contact with the lens of the eye
alpha particle
A particle identical to the helium nucleus which has been ejected from the nucleus of an atom as a form of radiation When the alpha particle slows down it picks up two electrons, becoming an atom of helium The penetrating power of an alpha particle is low; a thin sheet of paper will stop most alpha particles The readjustment which takes place within the parent nucleus results in gamma radiation
alpha particle
A particle emitted from the nucleus of an atom, containing two protons and two neutrons, identical to the nucleus (without the electrons) of a helium atom
alpha particle
Helium nucleus: two protons, two neutrons, NO electrons Alpha particles are ions
alpha particle
Positively charged particle emitted by certain radioactive substances during their radioactive disintegration An alpha particle consists of two neutrons and two protons and is identical to the nucleus of a helium atom Alpha radiation is less penetrating than beta or gamma radiation A sheet of paper is sufficient to absorb alpha radiation
alpha particle
positively charged particle made up of two protons and two neutrons, nucleus of a helium atom
alpha particle
Charged particles emitted from a radioactive atom Each charged particle consists of two protons and two neutrons
alpha particle
A positively charged particle ejected spontaneously from the nuclei of some radioactive elements It is identical to a helium nucleus that has a mass number of 4 and an electrostatic charge of +2 It has low penetrating power and a short range (a few centimeters in air) The most energetic alpha particle will generally fail to penetrate the dead layers of cells covering the skin and can be easily stopped by a sheet of paper Alpha particles are hazardous when an alpha-emitting isotope is inside the body
alpha particle
The nuclei of a helium atom (with two neutrons and two protons each) that are discharged by radioactive decay of many heavy elements, such as uranium-238 and plutonium-239
beta particle
electron in a beta ray, high-speed electron or positron, electron or positron ejected from the nucleus of an atom during radioactive decay
beta particle
a high-speed electron or positron emitted in the decay of a radioactive isotope
beta particle
A high-speed electron or positron, especially one emitted in radioactive decay
charged particle
An elementary particle, such as a proton or electron, with a positive or negative electric charge
charged particle
small particle which carries an electrical charge
charmed particle
A particle with nonzero total charm
chi particle
An electrically neutral meson having a mass 6,687 times that of the electron and a mean lifetime of approximately 1.5 × 10- seconds
elementary particle
{i} subatomic particle, individual elemental particle that compose the whole atom
elementary particle
Any of the subatomic particles that compose matter and energy, especially one hypothesized or regarded as an irreducible constituent of matter. Also called fundamental particle. one of the types of pieces of matter including electrons, protons, and neutrons that make up atoms
elementary particle
a particle that is less complex than an atom; regarded as constituents of all matter
eta particle
An electrically neutral meson having a mass 1,071 times that of the electron and a mean lifetime of approximately 3.5 × 10- seconds
j particle
a neutral meson with a large mass
lambda particle
an electrically neutral baryon with isotopic spin 1
nobiliary particle
A preposition used as a mark of noble rank before a title or surname, as German von in Christian von Wolf and French de in Simone de Beauvoir
particle
A subordinate word that is never inflected (a preposition, conjunction, interjection); or a word that can not be used except in compositions; as, ward in backward, ly in lovely
particle
a function word that can be used in English to form phrasal verbs a body having finite mass and internal structure but negligible dimensions
particle
A particle of something is a very small piece or amount of it. There is a particle of truth in his statement. food particles
particle
Any very small portion or part; the smallest portion; as, he has not a particle of patriotism or virtue
particle
A word that has a particular grammatical function but does not obviously belong to any particular part of speech, such as the word to in English infinitives
particle
A minute part or portion of matter; a morsel; a little bit; an atom; a jot; as, a particle of sand, of wood, of dust
particle
The smaller hosts distributed in the communion of the laity
particle
A crumb or little piece of concecrated host
particle
In physics, a particle is a piece of matter smaller than an atom, for example an electron or a proton
particle
{i} tiny portion, very small fragment; grain; preposition; conjunction
particle
In grammar, a particle is a preposition such as `into' or an adverb such as `out' which can combine with a verb to form a phrasal verb. Higgs particle particle accelerator particle physics subatomic particle elementary particle W particle wave particle duality Z particle
particle accelerator
A particle accelerator is a machine used for research in nuclear physics which can make particles that are smaller than atoms move very fast. A device, such as a cyclotron or linear accelerator, that accelerates charged subatomic particles or nuclei to high energies. Also called atom smasher. a machine used in scientific studies which makes the very small pieces of matter that atoms are made of move at high speeds. Device that accelerates a beam of fast-moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic particles and their fundamental interactions. At speeds close to that of light, particles collide with and disrupt atomic nuclei and subatomic particles, allowing physicists to study nuclear components and to make new kinds of subatomic particles. The cyclotron accelerates positively charged particles, while the betatron accelerates negatively charged electrons. Synchrotrons and linear accelerators are used either with positively charged particles or electrons. Accelerators are also used for radioisotope production, cancer therapy, biological sterilization, and one form of radiocarbon dating
particle accelerator
machine that increases the speed of charged particles to a high rate using electrical energy fields
particle beam
A beam of atoms or subatomic particles that have been accelerated by a particle accelerating device, aimed by magnets, and focused by a lens
particle beam
a collimated flow of particles (atoms or electrons or molecules)
particle board
Plywood substitute made of course sawdust that is mixed with resin and pressed into sheets Used for closet shelving, floor underlayment, stair treads, etc
particle board
Sawdust and resin compressed into sheets that can substitute for plywood in many situations
particle board
A scientifically engineered wood that is extremely sound in structural integrity and consistent surface smoothness to allow the application of laminated materials The Alectra cabinetry line from Dura Supreme uses the furniture grade level of this engineered wood material for the cabinetry end panels, tops, bottoms and backs of every cabinet High-Pressure laminate and wood veneer materials are frequently applied to this material back to list
particle board
5/8" Particle Board is standard decking material for rivet shelving Shelving can be ordered with or without Particle Board
particle board
Def - sheet stock that is composed of wood particles
particle board
board made from compressed wood chips and shavings
particle board
Sheets of building material made from wood particles bonded together with synthetic resin under heat and pressure
particle board
wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets
particle board
A wood product made from wood chips bonded with glue under heat and pressure Smooth surface particle board is dense, useful for both furniture and laminate jobs
particle physics
the branch of physics that studies subatomic particles and their interactions
particle physics
Particle physics is the study of the qualities of atoms and molecules and the way they behave and react. The branch of physics that deals with subatomic particles. the study of the way that parts of atoms develop and behave. or high-energy physics Study of the fundamental subatomic particles, including both matter (and antimatter) and the carrier particles of the fundamental interactions as described by quantum field theory. Particle physics is concerned with structure and forces at this level of existence and below. Fundamental particles possess properties such as electric charge, spin, mass, magnetism, and other complex characteristics, but are regarded as pointlike. All theories in particle physics involve quantum mechanics, in which symmetry is of primary importance. See also electroweak theory, lepton, meson, quantum chromodynamics, quark
small-particle pollution
air pollution caused by fine particles of soot (as from power plants or diesel engines)
strange particle
An unstable elementary particle created in high-energy particle collisions having a short life and a strangeness quantum number other than zero
strange particle
an elementary particle with non-zero strangeness
subatomic particle
{i} elementary particle, individual elemental particle that compose the whole atom
subatomic particle
Any of various units of matter below the size of an atom, including the elementary particles and hadrons. or elementary particle Any of various self-contained units of matter or energy. Discovery of the electron in 1897 and of the atomic nucleus in 1911 established that the atom is actually a composite of a cloud of electrons surrounding a tiny but heavy core. By the early 1930s it was found that the nucleus is composed of even smaller particles, called protons and neutrons. In the early 1970s it was discovered that these particles are made up of several types of even more basic units, named quarks, which, together with several types of leptons, constitute the fundamental building blocks of all matter. A third major group of subatomic particles consists of bosons, which transmit the forces of the universe. More than 200 subatomic particles have been detected so far, and most appear to have a corresponding antiparticle (see antimatter)
tau particle
{i} (Physics) tau lepton, tauon, negatively charged lepton having a mass almost 3500 times that of the electron (discovered by Martin Lewis Perl)
there's not a particle of truth in it
it is not true at all, that is completely false
upsilon particle
An electrically neutral meson having a mass 18,513 times that of the electron and a mean lifetime of approximately 8.0 × 10- seconds
virtual particle
A subatomic particle whose existence violates the principle of conservation of energy but is allowed to exist for a short time by Heisenberg's uncertainty principle
wave-particle duality
Principle that subatomic particles possess some wavelike characteristics, and that electromagnetic waves, such as light, possess some particlelike characteristics. In 1905, by demonstrating the photoelectric effect, Albert Einstein showed that light, which until then had been thought of as a form of electromagnetic wave (see electromagnetic radiation), must also be thought of as localized in packets of discrete energy (see photon). In 1924 Louis-Victor Broglie proposed that electrons have wave properties such as wavelength and frequency; their wavelike nature was experimentally established in 1927 by the demonstration of their diffraction. The theory of quantum electrodynamics combines the wave theory and the particle theory of electromagnetic radiation
weakly interacting massive particle
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
without a particle of truth
without a bit of truth, not true at all
β-particle

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