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Elapsed fraction of a cycle of a periodic function
cancellation Phase problem Phase spectrum Phase velocity Phasor Polarization (waves) Coherence (physics), the quality of a wave to display a well defined phase relationship
Phase_(waves)
Dynamic disturbance in a medium or field
of mechanical waves are seismic waves, gravity waves, surface waves and string vibrations. In an electromagnetic wave (such as light), coupling between
Wave
Phenomenon resulting from the superposition of two waves
interference) if the two waves are in phase or out of phase, respectively. Interference effects can be observed with all types of waves, for example, light
Wave_interference
Rate at which the phase of the wave propagates in space
The phase velocity of light waves is not a physically meaningful quantity and is not related to information transfer. For a simple sinusoidal wave the
Phase_velocity
Wave shaped like the sine function
sum of sine waves of various frequencies, relative phases, and magnitudes. When any two sine waves of the same frequency (but arbitrary phase) are linearly
Sine_wave
Wave that remains in a constant position
called antinodes. Standing waves were first described scientifically by Michael Faraday in 1831. Faraday observed standing waves on the surface of a liquid
Standing_wave
Dispersion of waves on a water surface
water waves generally refers to frequency dispersion, which means that waves of different wavelengths travel at different phase speeds. Water waves, in
Dispersion_(water_waves)
Property of waves that can oscillate with more than one orientation
light and radio waves, gravitational waves, and transverse sound waves (shear waves) in solids. An electromagnetic wave such as light consists of a coupled
Polarization_(waves)
Quantum mechanical waves describing matter
behaves like a wave was proposed by French physicist Louis de Broglie (/dəˈbrɔɪ/) in 1924, and so matter waves are also known as de Broglie waves. The de Broglie
Matter_wave
Potential for two waves to interfere
described by a wave equation or some generalization thereof. Waves in a rope (up and down) or slinky (compression and expansion) Surface waves in a liquid
Coherence_(physics)
Topics referred to by the same term
referred to as a "microscopic state" Phase space formulation, a formulation of quantum mechanics in phase space Phase (waves), the position of a point in time
Phase
Difference between phase angles
wave speed. Such reflections occur for many types of wave, including light waves, sound waves, and waves on vibrating strings. For an incident wave traveling
Reflection_phase_change
Mathematical technique for manipulating signals
possible to create an arbitrarily phase-shifted sine wave, by mixing together two sine waves that are 90° out of phase in different proportions. The implication
In-phase and quadrature components
In-phase_and_quadrature_components
Branch of physics
generation of waves with frequencies given by ω = ±ω1 ± ω2 ± ω3 in addition to third-harmonic generation waves with ω = 3ω1, 3ω2, 3ω3. As above, the phase-matching
Nonlinear_optics
Array of antennas creating a steerable beam
theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio waves that can
Phased_array
Wave on the surface of a fluid, dominated by surface tension
gravity waves. In this limit, the waves have a group velocity half the phase velocity: following a single wave's crest in a group one can see the wave appearing
Capillary_wave
Type of complex number
physics and representation theory, a phase factor is a multiplier representing the phase of a wave or the phase difference between two quantities. It
Phase_factor
Physical model of propagating energy
applications. The energy in electromagnetic waves is sometimes called radiant energy. The electromagnetic waves' energy does not need a propagating medium
Electromagnetic_radiation
Measurement method using interference of waves
the interference of superimposed waves to extract information. Interferometry typically uses electromagnetic waves and is an important investigative
Interferometry
Distance over which a wave's shape repeats
phase on the wave, such as two adjacent crests, troughs, or zero crossings. Wavelength is a characteristic of both traveling waves and standing waves
Wavelength
Complex number representing a particular sine wave
}{3}}\right)=0.} In the example of three waves, the phase difference between the first and the last wave was 240°, while for two waves destructive interference happens
Phasor
Type of data encoding
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency carrier wave. The
Phase-shift_keying
Wave where gravity is the main restoring force
In fluid dynamics, gravity waves are waves in a fluid medium or at the interface between two media when the force of gravity or buoyancy tries to restore
Gravity_wave
Hypothesized cycle-like phenomena in the modern world economy
In economics, Kondratiev waves (also called supercycles, great surges, long waves, K-waves or the long economic cycle) are hypothesized cycle-like phenomena
Kondratiev_wave
Elastic waves propagating in solid plates or spheres
Lamb waves propagate in solid plates or spheres. They are elastic waves whose particle motion lies in the plane that contains the direction of wave propagation
Lamb_waves
Vibrational energy transfer in Earth or other planetary body
and material phase. This effect resembles the refraction of light waves. Two types of particle motion result in two types of body waves: Primary and Secondary
Seismic_wave
Topics referred to by the same term
Look up phase angle in Wiktionary, the free dictionary. Phase angle may refer to: Phase (waves), the angular displacement of a sinusoid from a reference
Phase_angle
This is a list of wave topics. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Index_of_wave_articles
Short "burst" or "envelope" of restricted wave action that travels as a unit
change (dispersion) while propagating. Ideas related to wave packets – modulation, carrier waves, phase velocity, and group velocity – date from the mid-1800s
Wave_packet
French physicist (1892–1987)
is equal to the group velocity of phase waves, and the particle moves along the normal to surfaces of equal phase. In the general case, the trajectory
Louis_de_Broglie
Type of wave in the ocean or atmosphere
free waves propagate along coastal boundaries (and hence become trapped in the vicinity of the coast itself) in the form of Kelvin waves. These waves are
Kelvin_wave
Type of electromagnetic radiation
Radio waves (formerly called Hertzian waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic
Radio_wave
Type of energy propagation
Acoustic waves are types of mechanical waves that propagate through matter—such as gas, liquid, and/or solids—by causing the particles of the medium to
Acoustic_wave
Unexpectedly large transient ocean surface wave
Rogue waves (also known as freak waves, monster waves, or killer waves) are large and unpredictable surface waves that can be extremely dangerous to ships
Rogue_wave
Topics referred to by the same term
random-access memory. Phase change (waves), concerning the physics of waves. This disambiguation page lists articles associated with the title Phase change. If an
Phase_change
Measure used in radio engineering and telecommunications
mismatches result in standing waves along the transmission line, and SWR is defined as the ratio of the partial standing wave's amplitude at an antinode (maximum)
Standing_wave_ratio
Relation of wavelength/wavenumber as a function of a wave's frequency
water) or by interaction of the waves with the transmitting medium. Elementary particles, considered as matter waves, have a nontrivial dispersion relation
Dispersion_relation
Feature of a transverse wave
point of the wave. When the crests and troughs of two sine waves of equal amplitude and frequency intersect or collide, while being in phase with each other
Crest_and_trough
Surface waves generated by wind on open water
fetch. Waves in the oceans can travel thousands of kilometers before reaching land. Wind waves on Earth range in size from small ripples to waves over 30 m
Wind_wave
Fundamental principle of physics
the behavior of any light wave can be understood as a superposition of the behavior of these simpler plane waves. Waves are usually described by variations
Superposition_principle
Fluid dynamics theory on gravity waves
gravity waves on a fluid are dispersive waves – exhibiting frequency dispersion – meaning that each wavenumber has its own frequency and phase speed. Note
Airy_wave_theory
Phase of the estrous or menstrual cycle
The follicular phase, also known as the preovulatory phase or proliferative phase, is the phase of the estrous cycle (or, in primates for example, the
Follicular_phase
Number of occurrences or cycles per unit time
longer and slower waves, such as ocean surface waves, are more typically described by wave period rather than frequency. Short and fast waves, like audio and
Frequency
Smooth curve outlining the extremes of an oscillating signal
electromagnetic waves is: ω = c 0 k {\displaystyle \omega =c_{0}k} where c0 is the speed of light in classical vacuum. For this case, the phase and group velocities
Envelope_(waves)
Measure of change in amplitude and phase of a wave
constant of a sinusoidal electromagnetic wave is a measure of the change undergone by the amplitude and phase of the wave as it propagates in a given direction
Propagation_constant
Physical transformation of a wave field
Phase conjugation is a physical transformation of a wave field where the resulting field has a reversed propagation direction but keeps its amplitudes
Phase_conjugation
Type of seismic wave
continuum mechanics, a P wave (primary wave or pressure wave) is one of the two main types of elastic body waves or seismic waves. P waves travel faster than
P_wave
Mathematical model of swarms
Quincke rollers produce rich emergent behavior such as activity waves and shock waves. Embryonic cells are the foundational building blocks of an embryo
Swarmalators
1980 studio album by Rush
Permanent Waves is the seventh studio album by Canadian rock band Rush, released on January 14, 1980 through Anthem Records. The album charted at No. 3
Permanent_Waves
Device that transmits and receives radio waves
into radio waves for transmission, and to convert radio waves back into electric currents for reception. It is the interface between radio waves propagating
Antenna_(radio)
Moving wave that has oscillations perpendicular to the direction of the wave
oscillations. All waves move energy from place to place without transporting the matter in the transmission medium if there is one. Electromagnetic waves are transverse
Transverse_wave
Loudspeaker component
response because it guides waves outward toward the listener rather than allowing them to interact destructively near the driver. Phase plugs are commonly found
Phase_plug
Mathematical description of quantum state
determines how wave functions evolve over time, and a wave function behaves qualitatively like other waves, such as water waves or waves on a string, because
Wave_function
Period of sleep in humans and other animals
consisting of a distinct negative sharp wave followed by a positive component, and slow waves or delta waves characterized by slow frequency (< 2 Hz)
Slow-wave_sleep
Unstable wave
termed "breaking waves", partly by analogy with water surface waves. In meteorology, atmospheric gravity waves are said to break when the wave produces regions
Breaking_wave
Electronic method of transmitting information with a carrier wave
instantaneous phase of a carrier wave. Phase modulation is one of the two principal forms of angle modulation, together with frequency modulation. In phase modulation
Phase_modulation
Interference phenomenon of waves
cycle in which case waves will cancel one another out. When waves are added together, their sum is determined by their relative phases as well as the amplitudes
Diffraction
Electronic sound synthesis method
than Yamaha's phase modulation (PM/FM) synthesis. PM does not require oscillator sync but was for a long time limited to sine waves, which meant output
Phase_distortion_synthesis
Frequency swept signal
instantaneous angular frequency, ω, is defined as the phase rate as given by the first derivative of phase, with the instantaneous ordinary frequency, f, being
Chirp
Overview article
plane waves used to create it, it can be shown that one of the diffracted waves is a re-construction of the other plane wave. When a plane wave is added
Physics_of_optical_holography
Inertial wave in rotating fluids
Rossby waves, also known as planetary waves, are a type of inertial wave naturally occurring in rotating fluids. They were first identified by Sweden-born
Rossby_wave
Compositional technique
Experimental music Generative music La Monte Young Phase (waves) Phaser (effect) Polytempo Shepard tone Wave interference Kostka, Stefan (25 July 2005). Materials
Phase_music
Velocity at which the overall shape of a wave's amplitudes propagates
the medium. For waves traveling through three dimensions, such as light waves, sound waves, and matter waves, the formulas for phase and group velocity
Group_velocity
"Bouncing back" of waves at an interface
seismic waves. Reflection is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave, besides
Reflection_(physics)
Transport of energy by wind waves, and the capture of that energy to do useful work
factors. As long as the waves propagate slower than the wind speed just above, energy is transferred from the wind to the waves. Air pressure differences
Wave_power
Interpretation of quantum mechanics
1016/0375-9601(86)90200-8. ISSN 0375-9601. Elbaz, Claude (1985). "On de Broglie waves and Compton waves of massive particles". Physics Letters A. 109 (1–2): 7–8. Bibcode:1985PhLA
De_Broglie–Bohm_theory
Type of low-frequency compressive wave
In physics, magnetosonic waves, also known as magnetoacoustic waves, are low-frequency compressive waves driven by mutual interaction between an electrically
Magnetosonic_wave
Phase of sleep characterized by random and rapid eye movements
in humans during "phasic" events which occur during REM sleep, and the existence of similar PGO waves is thus inferred.) These waves occur in clusters
Rapid_eye_movement_sleep
Material designed to manipulate sound waves
and crystal structure, electromagnetic waves and acoustic waves are both mathematically described by the wave equation. The simplest realization of an
Acoustic_metamaterial
Antenna consisting of two rod-shaped conductors
side by side (but not collinear), but fed in progressing phases, arranged so that their waves add coherently in one direction but cancel in the opposite
Dipole_antenna
Solution of Euler equations
– trochoidal waves are of limited use for engineering applications. In computer graphics, the rendering of realistic-looking ocean waves can be done by
Trochoidal_wave
Phase of a cycle
mechanics, the geometric phase (also known as the Pancharatnam–Berry phase, Pancharatnam phase, or Berry phase) is a phase difference acquired over the
Geometric_phase
Form of alternating current
Three-phase electric power (abbreviated 3ϕ) is the most widely used form of alternating current (AC) for electricity generation, transmission, and distribution
Three-phase_electric_power
Region of space between a transmitting and receiving antenna
the magnitude of the phase difference between the two waves, the waves can interfere constructively or destructively. In any wave-propagated transmission
Fresnel_zone
Spatial frequency of a wave
wave scattering, such as X-ray diffraction, neutron diffraction, electron diffraction, and elementary particle physics. For quantum mechanical waves,
Wavenumber
Measure of interference in a wave system
interference in any system subject to wave superposition. Examples include as optics, quantum mechanics, water waves, sound waves, or electrical signals. Visibility
Interferometric_visibility
Method of market analysis
practitioners today call Elliott waves, or simply waves. Elliott published his theory of market behavior in the book The Wave Principle in 1938, summarized
Elliott_wave_principle
Aspect of relativity in physics
Gravitational waves are waves of spacetime curvature produced by the relative motion of gravitating masses and which propagate away at the speed of light
Gravitational_wave
Effect by which surface waves entering shallower water change in wave height
of the wave part of a motion Breaking wave – Unstable wave Dispersion (water waves) – Dispersion of waves on a water surface Ocean surface waves – Surface
Wave_shoaling
Set of multiple antennas which work together
plane waves, a beam of radio waves traveling in a specific direction. In directions in which the waves from the individual antennas arrive in phase, the
Antenna_array
Physical phenomenon relating to the direction of waves
but other waves such as sound waves and water waves also experience refraction. How much a wave is refracted is determined by the change in wave speed and
Refraction
Vector describing a wave; often its propagation direction
constant phase. For example, when a wave travels through an anisotropic medium, such as light waves through an asymmetric crystal or sound waves through
Wave_vector
Optical interference pattern of concentric rings
(λ/2) of the light waves, the reflected waves will be in phase, so the "troughs" and "peaks" of the waves coincide. Therefore, the waves will reinforce (add)
Newton's_rings
Longitudinal wave – Mechanical wave – Navier–Stokes equations – Partial differential equation – Periodic function – Permutation – Phase (waves) – Physics
List_of_cycles
Type of plane wave
{\hat {n}}} , the wave is said to be longitudinal. These two possibilities are exemplified by the S (shear) waves and P (pressure) waves studied in seismology
Sinusoidal_plane_wave
nonreciprocity of VLF waves. Waves propagating from east to west are more strongly attenuated than vice versa. There appears a phase slipping near the distance
Earth–ionosphere_waveguide
Property in optics
phase of the original driving wave and the waves radiated by the charge motion, there are several possibilities: If the electrons emit a light wave which
Refractive_index
WWII Women's Navy Branch
equivalent experience. The WAVES were primarily white, but 72 African-American women eventually served. The Navy's training of most WAVES officer candidates took
WAVES
Topics referred to by the same term
reference frequency Offset dish antenna, a type of satellite dish Phase offset, see phase (waves) Offset (law), a reduction in the amount to be paid by a losing
Offset
Type of radio antenna
rod is used. They receive and reradiate the radio waves from the driven element but in a different phase determined by their exact lengths. Their effect
Yagi–Uda_antenna
Neural oscillations in the frequency range of 8–12 Hz
waves, or the alpha rhythm, are neural oscillations in the frequency range of 8–12 Hz likely originating from the synchronous and coherent (in phase or
Alpha_wave
Atmospheric stationary oscillations
meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered
Lee_Waves
This article summarizes equations in the theory of waves. A wave can be longitudinal where the oscillations are parallel (or antiparallel) to the propagation
List of equations in wave theory
List_of_equations_in_wave_theory
Complete reflection of a wave
electromagnetic waves such as light and microwaves, but also with other types of waves, including sound and water waves. If the waves are capable of forming
Total_internal_reflection
European space mission to measure gravitational waves
gravitational waves—slight ripples in the fabric of spacetime—from astronomical sources. LISA will be the first dedicated space-based gravitational-wave observatory
Laser Interferometer Space Antenna
Laser_Interferometer_Space_Antenna
Device which diffracts light via sound waves
transverse acoustic waves or perpendicular longitudinal waves can change the polarization. The acoustic waves induce a birefringent phase-shift, much like
Acousto-optic_modulator
Physical characteristic of oscillating systems
of waves. For example, the string of a guitar or the surface of water in a bowl can be modeled as a continuum of small coupled oscillators and waves can
Resonance
Electric current that periodically reverses direction
guitar amplifiers, different waveforms are used, such as triangular waves or square waves. Audio and radio signals carried on electrical wires are also examples
Alternating_current
Electrical circuit detecting phase difference
output remains high throughout each cycle. This phase detector requires inputs that are symmetrical square waves, or nearly so. The XOR detector compares well
Phase_detector
Long-term waves of technological progress
Smihula waves (or Smihula cycles, Smihula waves of technological revolutions, economic waves of technological revolutions) are long-term waves of technological
Smihula_waves
PHASE WAVES
PHASE WAVES
Girl/Female
Hindu
Art, Phases of Moon
Girl/Female
Indian
Phases of Quran
Boy/Male
Hindu, Indian
Gods Prayer; Sanskrit Phrase
Boy/Male
American, Australian, British, Chinese, Christian, English, French
Huntsman; Hunter
Surname or Lastname
English
English : from Middle English pese ‘pea’, hence a metonymic occupational name for a grower or seller of peas, or a nickname for a small and insignificant person. The word was originally a collective singular (Old English peose, pise, from Latin pisa) from which the modern English vocabulary word pea is derived by folk etymology, the singular having been taken as a plural.Robert and John Pease came from Great Baddow, Essex, England, to Salem, MA, in 1634. In 1644 Robert died, leaving a son (also called Robert) who was apprenticed as a weaver in Salem. By 1646 John Pease was living on Martha’s Vineyard.
Girl/Female
Tamil
Kala Devi | கலா தேவீ
Art, Phases of Moon
Kala Devi | கலா தேவீ
Boy/Male
English American
Huntsman.
Male
French
French form of Latin Stephanus, STÉPHANE means "crown."
Boy/Male
German
Chase; Hunt
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Telugu
Phase; Time of Day
Girl/Female
Tamil
Shashikala | ஷஷிகலா
Phases of Moon
Shashikala | ஷஷிகலா
Girl/Female
Hindu
Art, Phases of Moon
Surname or Lastname
German
German : nickname for a swift runner or a timorous person, from Middle High German, Middle Low German hase ‘hare’.Jewish (Ashkenazic) : ornamental name from German Hase ‘hare’.English : from a Middle English nickname, Hase, from Old English hÄs ‘harsh, raucous, or hoarse voice’.Japanese : usually written with characters meaning ‘long valley’; habitational name from a place in Yamato (now Nara prefecture). Listed in the Shinsen shÅjiroku. Some bearers are descended from the Taira clan; they are found mainly in eastern Japan. Also pronounced Nagaya and Nagatani; the original pronunciation was Hatsuse, meaning ‘beginning of the strait’.
Male
English
Middle English surname (of Norman French origin) transferred to forename use, CHASE means "hunter."Â
Surname or Lastname
English
English : metonymic occupational name for a huntsman, or rather a nickname for an exceptionally skilled huntsman, from Middle English chase ‘hunt’ (Old French chasse, from chasser ‘to hunt’, Latin captare).Southern French : topographic name for someone who lived in or by a house, probably the occupier of the most distinguished house in the village, from a southern derivative of Latin casa ‘hut’, ‘cottage’, ‘cabin’.Thomas Chase came to MA from Chesham, Buckinghamshire, England, in the 1640s, and had many prominent descendants. Samuel Chase, born in Somerset Co., MD, in 1741, was one of the first members of the U.S. Supreme Court; Philander Chase, born in Cornish, NH, in 1741 was a prominent Episcopal clergyman, and his nephew Salmon Portland Chase (1808–73), also born in Cornish, was governor of OH, a U.S. senator, and secretary of the U.S. Treasury during the Civil War.
Girl/Female
Tamil
Phase, Time of day
Girl/Female
Tamil
Art, Phases of Moon
Girl/Female
Indian, Telugu
A Phase of Life; Childhood
Girl/Female
Indian, Telugu
Phrase of Music
Girl/Female
Hindu
Phases of Moon
PHASE WAVES
PHASE WAVES
Boy/Male
Hindu, Indian
With Beautiful Hairs
Girl/Female
Australian, German, Greek
Helper and Defender of Mankind; Form of Alexander
Girl/Female
Arabic, Muslim
One who Belongs in the Skies
Boy/Male
Hindu, Indian, Marathi
Lord of Stars
Girl/Female
Indian
Worthy of description
Boy/Male
Muslim/Islamic
Servant of the Loving
Boy/Male
Muslim
Morning
Boy/Male
Arabic, Muslim
Refuse
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Tamil
Lord Indra's Name
Male
Irish
Irish Gaelic form of Greek Petros, PIARAS means "rock, stone."
PHASE WAVES
PHASE WAVES
PHASE WAVES
PHASE WAVES
PHASE WAVES
n.
That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.
pl.
of Pease
n.
The liberty or franchise of having a chase; free chase.
n.
A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.
v. i.
To give chase; to hunt; as, to chase around after a doctor.
n.
See Phase.
pl.
of Pease
n.
Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases.
pl.
of Phase
p. pr. & vb. n.
of Phrase
n.
Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.
v. t.
To follow as if to catch; to pursue; to compel to move on; to drive by following; to cause to fly; -- often with away or off; as, to chase the hens away.
n.
Pulse; pease.
v. t.
To chase.
a.
Resembling prase.
n.
A brief expression, sometimes a single word, but usually two or more words forming an expression by themselves, or being a portion of a sentence; as, an adverbial phrase.
v. i.
To group notes into phrases; as, he phrases well. See Phrase, n., 4.
a.
Without a phase, or visible form.
p. pr. & vb. n.
of Chase
imp. & p. p.
of Phrase