Search references for HELMHOLTZ MACHINE. Phrases containing HELMHOLTZ MACHINE
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Type of artificial neural network
The Helmholtz machine (named after Hermann von Helmholtz and his concept of Helmholtz free energy) is a type of artificial neural network that can account
Helmholtz_machine
Involuntary aspect of visual perception
term coined in 1867 by the German physicist and polymath Hermann von Helmholtz to describe an involuntary, pre-rational and reflex-like mechanism which
Unconscious_inference
Paradigm in machine learning that uses no classification labels
the top RBM. As of 2009, 3-4 layers seems to be the optimal depth. Helmholtz machine These are early inspirations for the Variational Auto Encoders. Its
Unsupervised_learning
Phenomenon of air resonance in a cavity
Helmholtz resonance, also known as wind throb, refers to the phenomenon of air resonance in a cavity, an effect named after the German physicist Hermann
Helmholtz_resonance
Computational model used in machine learning
Geoffrey Hinton, and others, including the Boltzmann machine, restricted Boltzmann machine, Helmholtz machine, and the wake-sleep algorithm. These were designed
Neural network (machine learning)
Neural_network_(machine_learning)
Branch of machine learning
Geoffrey Hinton, etc., including the Boltzmann machine, restricted Boltzmann machine, Helmholtz machine, and the wake-sleep algorithm. These were designed
Deep_learning
Type of stochastic recurrent neural network
foundational contributions to machine learning, such as the Boltzmann machine. Restricted Boltzmann machine Helmholtz machine Markov random field (MRF) Ising
Boltzmann_machine
Explaining the brain's abilities through statistical principles
disciplines including machine learning, experimental psychology and Bayesian statistics. As early as the 1860s, with the work of Hermann Helmholtz in experimental
Bayesian approaches to brain function
Bayesian_approaches_to_brain_function
German physicist and physiologist (1821–1894)
Hermann Ludwig Ferdinand von Helmholtz (31 August 1821 – 8 September 1894; "von" since 1883) was a German physicist and physician who made significant
Hermann_von_Helmholtz
Researcher in computational neuroscience
learning, including the wake-sleep algorithm for neural networks and the Helmholtz machine. Dayan studied mathematics at the University of Cambridge and then
Peter_Dayan
Geoffrey Hinton, etc., including the Boltzmann machine, restricted Boltzmann machine, Helmholtz machine, and the wake-sleep algorithm. These were designed
History of artificial neural networks
History_of_artificial_neural_networks
Unsupervised learning algorithm
unsupervised learning algorithm for deep generative models, especially Helmholtz Machines. The algorithm is similar to the expectation-maximization algorithm
Wake-sleep_algorithm
Class of artificial neural network
CS1 maint: work parameter with ISBN (link) Autoencoder Helmholtz machine Sherrington, David; Kirkpatrick, Scott (1975), "Solvable Model of
Restricted_Boltzmann_machine
Topics referred to by the same term
Helmholtz most commonly refers to Hermann von Helmholtz (1821-1894), German physician and physicist. Helmholtz or Helmholz may also refer to: Places named
Helmholtz_(disambiguation)
Thermodynamic potential
In thermodynamics, the Helmholtz free energy (or Helmholtz energy) is a thermodynamic potential that measures the useful work obtainable from a closed
Helmholtz_free_energy
below. 11573 Helmholtz Kelvin–Helmholtz mechanism Helmholtz (lunar crater) Gibbs–Helmholtz equation Helmholtz coil Helmholtz condition Helmholtz decomposition
List of things named after Hermann von Helmholtz
List_of_things_named_after_Hermann_von_Helmholtz
Hypothesis in neuroscience
variational free energy is based upon Helmholtz's work on unconscious inference and subsequent treatments in psychology and machine learning. Variational free energy
Free_energy_principle
Canadian-American computer scientist (born 1963)
and Ph.D. both in computer science in 1989 and 1994, respectively. Helmholtz machine "Profile on Google Scholar". "Richard Zemel's Homepage". Richard Zemel
Richard_Zemel
Largest scientific organisation in Germany
The Helmholtz Association of German Research Centres (German: Helmholtz-Gemeinschaft Deutscher Forschungszentren) is the largest scientific organisation
Helmholtz_Association
Two circular coil device which creates a homogeneous magnetic field
A Helmholtz coil is a device for producing a region of nearly uniform magnetic field, named after the German physicist Hermann von Helmholtz. It consists
Helmholtz_coil
Canadian computer scientist and statistician (born 1956)
Hinton, Geoffrey E.; Neal, Radford M.; Zemel, Richard S. (1995). "The Helmholtz Machine". Neural Computation. 7 (5): 889–904. doi:10.1162/neco.1995.7.5.889
Radford_M._Neal
Computer-vision research conference
Pattern Analysis and Machine Intelligence. The award is named after the 19th century physician and physicist Hermann von Helmholtz, and the ICCV's award
International Conference on Computer Vision
International_Conference_on_Computer_Vision
1932 dystopian novel by Aldous Huxley
them. Helmholtz and Bernard rush in to stop the ensuing riot, which the police quell by spraying soma vapour into the crowd. Bernard, Helmholtz, and John
Brave_New_World
Approach in generative models
Peter; Hinton, Geoffrey; Neal, Radford; Zemel, Richard S. (1999), "Helmholtz Machine", Unsupervised Learning, The MIT Press, doi:10.7551/mitpress/7011
Energy-based_model
British-Canadian computer scientist (born 1947)
representations, time delay neural network, mixtures of experts, Helmholtz machines and product of experts. An accessible introduction to Geoffrey Hinton's
Geoffrey_Hinton
Cognitive science prize
computational neuroscience, Q-learning algorithm, wake-sleep algorithm, Helmholtz machine Max Planck Institute for Biological Cybernetics, University College
Rumelhart_Prize
The GFZ Helmholtz Centre for Geosciences (formerly Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences), or just GFZ, is the national
GFZ Helmholtz Centre for Geosciences
GFZ_Helmholtz_Centre_for_Geosciences
Theory of brain function
coding similar to some other models of hierarchical learning, such as Helmholtz machines and Deep belief networks, which however employ different learning
Predictive_coding
Molecular interface between a surface and a fluid
combining the Helmholtz model with the Gouy-Chapman model: in Stern's model, some ions adhere to the electrode as suggested by Helmholtz, giving an internal
Double layer (surface science)
Double_layer_(surface_science)
Research institute in Leipzig, Germany
The work of the Helmholtz Centre for Environmental Research – UFZ (prior to 28 November 2006 UFZ-Umweltforschungszentrum Leipzig-Halle GmbH) covers both
Helmholtz Centre for Environmental Research
Helmholtz_Centre_for_Environmental_Research
co-introduced the backpropagation algorithm, the Boltzmann machine and the Helmholtz machine; known as the "Godfather of AI" Steve Mann (professor of computer
List of University of Toronto faculty
List_of_University_of_Toronto_faculty
Research laboratory in Germany
94972 The Helmholtz-Zentrum Dresden-Rossendorf (HZDR) is a Dresden-based research laboratory. It conducts research in three of the Helmholtz Association's
Helmholtz-Zentrum Dresden-Rossendorf
Helmholtz-Zentrum_Dresden-Rossendorf
Research institute in Kiel, Germany
The GEOMAR - Helmholtz Centre for Ocean Research Kiel (GEOMAR), formerly known as the Leibniz Institute of Marine Sciences (German: Leibniz-Institut für
GEOMAR Helmholtz Centre for Ocean Research Kiel
GEOMAR_Helmholtz_Centre_for_Ocean_Research_Kiel
Physics Institute
The Helmholtz Institute Jena was founded as an outstation of the GSI Helmholtzzentrum für Schwerionenforschung on June 25, 2009 and is located on the
Helmholtz_Institute_Jena
Turkish computer scientist
Interpretable and Reliable Machine Learning chair. Akata is also the director of the Helmholtz Institute for Explainable Machine Learning. Akata received
Zeynep_Akata
German research institution
The Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (German: Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung)
Alfred Wegener Institute for Polar and Marine Research
Alfred_Wegener_Institute_for_Polar_and_Marine_Research
American theoretical physicist
quantum mechanics based on the similarity of quantum mechanics and Helmholtz machines. He was awarded the E. O. Lawrence Award in 1982 by the United States
George_Chapline_Jr.
British physicist, engineer and mathematician (1824–1907)
as Thomson bridge) Kelvin functions Kelvin–Helmholtz instability Kelvin–Helmholtz luminosity Kelvin–Helmholtz mechanism Kelvin–Voigt material Joule–Thomson
Lord_Kelvin
American computer vision researcher
framework along with Michael Jones. He won the Marr Prize in 2003 and the Helmholtz Prize from the International Conference on Computer Vision in 2013. He
Paul_Viola
Thermodynamic potential of entropy, analogous to the free energy
{\displaystyle U(S,V)} Enthalpy H ( S , p ) = U + p V {\displaystyle H(S,p)=U+pV} Helmholtz free energy A ( T , V ) = U − T S {\displaystyle A(T,V)=U-TS} Gibbs free
Free_entropy
Knowledge derived from familiarity
Aristotelian Society on 6 March 1911. In a similar fashion, in 1868 Hermann von Helmholtz had distinguished clearly between das Kennen, the knowledge that consisted
Knowledge_by_acquaintance
Interdisciplinary research centre in Germany
Research Centre Limited Liability Company”) is a private company as part of Helmholtz Association with strong national funding that pursues interdisciplinary
Forschungszentrum_Jülich
Autonomous underwater vehicle for mapping of the seabed and water column data collection
vessels. AUV Abyss, GEOMAR - Helmholtz Centre for Ocean Research Kiel, 2012 Archived 2014-03-23 at the Wayback Machine Technical Specifications (German)
AUV_Abyss
American poet and critic (1885–1972)
Archived 19 March 2022 at the Wayback Machine, 180–188; Pound (August 1917) Archived 11 May 2020 at the Wayback Machine, 248–254 Moody (2007), 306–307 Tytell
Ezra_Pound
German physicist (1858–1947)
study with physicists Hermann von Helmholtz and Gustav Kirchhoff and mathematician Karl Weierstrass. He wrote that Helmholtz was never quite prepared, spoke
Max_Planck
State function whose change relates to the system's maximal work output
utility to solution-phase chemists, including biochemists. In contrast, the Helmholtz free energy is defined as A = U − TS. Its change is equal to the amount
Thermodynamic_free_energy
Observational basis of thermodynamics
motion machines, respectively: the perpetual motion machine of the first kind which produces work with no energy input, and the perpetual motion machine of
Laws_of_thermodynamics
English polymath (1773–1829)
Stone. Young's work influenced that of William Herschel, Hermann von Helmholtz, James Clerk Maxwell, and Albert Einstein. Young is credited with establishing
Thomas_Young_(scientist)
German physicist (1857–1894)
and Berlin, where he studied under Gustav Kirchhoff and Hermann von Helmholtz. In 1880, Hertz obtained his Ph.D. from the University of Berlin, and
Heinrich_Hertz
National cancer research center in Heidelberg, Germany
cancer research center based in Heidelberg, Germany. It is a member of the Helmholtz Association of German Research Centres, the largest scientific organization
German_Cancer_Research_Center
Aerodynamic instability in axial or centrifugal compressors
system. Although Helmholtz resonance frequency is often employed to characterize the unsteadiness of mild surge; it was found that Helmholtz oscillation did
Surge_in_compressors
German neuroendocrinologist (born 1967)
and Scientific Director of Helmholtz Zentrum München, as well as Vice President for the Research Area Health of the Helmholtz Association of German Research
Matthias_Tschöp
inventor, and artist living in Munich, Germany. He is the director of a new Helmholtz Institute of Intelligent Biotechnologies (iBIO) in Munich since July 2019
Ali_Ertürk
Greek-American computer scientist
in image retrieval and related tasks. The EMD paper received the ICCV Helmholtz Prize in 2013, recognizing work with fundamental impact on computer vision
Leonidas_J._Guibas
English economist and logician (1835–1882)
truths in their theoretical existence. In 1872, Helmholtz gave a response to Jevons, who claimed that Helmholtz failed to show why geometric truth should be
William_Stanley_Jevons
Musical tuning system
solution remains an enigma." The 19th-century German physicist Hermann von Helmholtz wrote in On the Sensations of Tone that a Chinese prince (see below) introduced
12_equal_temperament
Topics referred to by the same term
Wiktionary, the free dictionary. HMI may refer to: Hahn-Meitner-Institut, now Helmholtz-Zentrum Berlin, a German research institute Hanson Musical Instruments
HMI
Italian cognitive scientist (born 1947)
Retrieved 19 January 2023. "ICCV Helmholtz Prize - IEEE Computer Society Technical Committee on Pattern Analysis and Machine Intelligence -IEEE Computer Society
Tomaso_Poggio
Star at the centre of the Solar System
body that is radiating an internal store of heat. Kelvin and Hermann von Helmholtz proposed a gravitational contraction mechanism to explain the energy output
Sun
Physics of heat, work, and temperature
the system, such as constant temperature or pressure. For example, the Helmholtz and Gibbs energies are the energies available in a system to do useful
Thermodynamics
Percussive musical instrument
upper side of the instrument with the sound of the air in the vessel, the Helmholtz resonance. Different from the Hang the Gu, a round resonance opening with
Gubal_(instrument)
German research institute
48°25′35″N 9°57′36″E / 48.42634°N 9.96002°E / 48.42634; 9.96002 The Helmholtz Institute Ulm (HIU) carries out research and development in the area of
Helmholtz_Institute_Ulm
Part of an eye examination
German physiologist Hermann von Helmholtz invented the ophthalmoscope again independently. At that time, Helmholtz was a young physiology professor and
Ophthalmoscopy
Indian-American academic (born 1960)
Archived 2011-10-04 at the Wayback Machine, past and present Miller professors, retrieved 2014-03-22. "ICCV Helmholtz Prize". Archived from the original
Jitendra_Malik
Study of mental functions and behaviors
could be measured by experimental methods." In Heidelberg, Hermann von Helmholtz conducted parallel research on sensory perception, and trained physiologist
Psychology
American-born computer scientist
the European Conference on Computer Vision (ECCV) in 2010 and 2022, the Helmholtz Prize at the International Conference on Computer Vision (ICCV) in 2013
Michael_J._Black
Italian musical instrument maker (1836–1925)
invented the ocarina, a ceramic wind instrument based on the principle of a Helmholtz resonator. Donati was born in Budrio. Legend has it that he created his
Giuseppe_Donati
performed using Q-machines includes current driven ion cyclotron waves, Kelvin-Helmholtz waves, and electron phase space holes. Today, Q-machines can be found
Q-machine
Research establishment in Adlershof, Berlin, Germany
Originally part of the Leibniz Association, BESSY now belongs to the Helmholtz-Zentrum Berlin (since 1 January 2009). Owing to the radiometry lab of
BESSY
Soedjak, Nathan (2023). "Recovering coefficients in a system of semilinear Helmholtz equations from internal data". Inverse Problems. 40 (4): 045023. arXiv:2307
Language_model_benchmark
Type of energy transfer
with a mechanical analysis of processes, for example in the work of Helmholtz. This mechanical view is taken in this article as currently customary
Heat
Illusion of color
illumination flicker. The effect was noted by Gustav Fechner and Hermann von Helmholtz and propagated to English-speakers through Charles Benham's invention
Fechner_color_effect
Law of thermodynamics establishing the conservation of energy
Reprinted in Helmholtz, H. (1882), Wissenschaftliche Abhandlungen, volume 1, Johann Ambrosius Barth, Leipzig, pp. 223–230 "Helmholtz, Hermann von -
First_law_of_thermodynamics
Molecular biologist
starting her Ph.D. studies, Kreshuk worked at CERN (2004–2007) and the GSI Helmholtz Centre for Heavy Ion Research (2007–2008) as a scientific programmer.
Anna_Kreshuk
Austrian–Irish physicist (1887–1961)
follows the step of Isaac Newton, James Clerk Maxwell and Hermann von Helmholtz in the same area. Some of these papers have been translated into English
Erwin_Schrödinger
Computer imaging researcher
München, Director of the Institute of Machine Learning in Biomedical Imaging at Helmholtz Zentrum München (Helmholtz Distinguished Professorship), and Chair
Julia_Schnabel
University in Germany
with external organizations such as the German Aerospace Center (DLR), Helmholtz Centre for Infection Research, several Fraunhofer Institutes, and Germany's
TU_Braunschweig
English mathematician, philosopher, and engineer (1791–1871)
only came into use after being independently invented by Hermann von Helmholtz. Babbage achieved notable results in cryptography, though this was still
Charles_Babbage
circulation theorem Kelvin–Helmholtz instability Kelvin–Helmholtz mechanism Kelvin–Helmholtz luminosity Kelvin-Helmholtz time scale Kelvin–Planck statement
List of things named after Lord Kelvin
List_of_things_named_after_Lord_Kelvin
Numerical technique
Vladimir Rokhlin Jr. and is based on the multipole expansion of the vector Helmholtz equation. By treating the interactions between far-away basis functions
Fast_multipole_method
Capital city of Saxony, Germany
Retrieved 12 June 2024. "Facts and Data about the Helmholtz-Zentrum Dresden-Rossendorf". Helmholtz-Zentrum Dresden-Rossendorf. Retrieved 12 June 2024
Dresden
SI derived unit of power
express the output power of engines and the power of electric motors, tools, machines, and heaters. It is also a common unit used to express the electromagnetic
Watt
French painter (1859–1891)
effects and perception. They adapted the scientific research of Hermann von Helmholtz and Isaac Newton into a form accessible to laypeople. Artists followed
Georges_Seurat
Electric and magnetic fields produced by moving charged objects
FitzGerald Fizeau Franklin Galvani Gauss Gibbs Gilbert Green Heaviside Helmholtz Henry Hertz Hopkinson Joule Kelvin Kirchhoff Larmor Lenz Liénard Lorentz
Electromagnetic_field
Unidirectional flow of electric charge
(2010). Physics. Palgrave Macmillan. p. 175. ISBN 978-0-230-23192-4. "Pixii Machine invented by Hippolyte Pixii, National High Magnetic Field Laboratory".
Direct_current
Main-belt asteroid
11573 Helmholtz, provisional designation 1993 SK3, is a Zhongguo asteroid from the outermost region of the asteroid belt, approximately 13 kilometers
11573_Helmholtz
fans were quieter than their predecessors, using improved airflow and a Helmholtz resonator to cancel a 10 kHz whine. Later, Dyson produced combination
List_of_Dyson_products
Physical quantity of hot and cold
Wayback Machine How do physicists study particles? Archived 2007-10-11 at the Wayback Machine by CERN Archived 2012-07-07 at the Wayback Machine. Adkins
Temperature
Measure of the light propagating through an optical system
the optical invariant is a constant throughout all space. Etendue Smith-Helmholtz invariant Abbe sine condition Greivenkamp, John E. (2004). Field Guide
Lagrange_invariant
Difference in electric potential between two points in space
Retrieved 2 January 2024. IEV: voltage Archived 2016-02-03 at the Wayback Machine Fischer, Traugott (2009-03-13). Materials Science for Engineering Students
Voltage
Study of classical optics using Fourier transforms
the Helmholtz equation is significant.) It is perhaps worthwhile to note that the eigenfunction solutions / eigenvector solutions to the Helmholtz equation
Fourier_optics
Type of thermodynamic potential
slightly different, meaning of "free" applies in conjunction with the Helmholtz free energy, for systems at constant temperature). However, an increasing
Gibbs_free_energy
Concept in physiology
of efferent copies was the German physician and physicist Hermann von Helmholtz in the middle of the 19th century. He argued that the brain needed to
Efference_copy
Perception caused by wavelengths of light
colors, such as CIELUV, a spectral color has the maximal saturation. In Helmholtz coordinates, this is described as 100% purity. The physical color of an
Color
Phenomena related to electric charge
with a more reliable source of electrical energy than the electrostatic machines previously used. The recognition of electromagnetism, the unity of electric
Electricity
Sixth planet from the Sun
receives from the Sun. Jupiter's thermal energy is generated by the Kelvin–Helmholtz mechanism of slow gravitational compression; but such a process alone
Saturn
Scientific dating of the Earth
themselves but were based on faulty assumptions. The physicist Hermann von Helmholtz (in 1856) and astronomer Simon Newcomb (in 1892) contributed their own
Age_of_Earth
American mathematician, polyglot, and child prodigy (1898–1944)
came to Earth from asteroids (as advanced by Lord Kelvin and Hermann von Helmholtz). Sidis also writes that functionally speaking, stars are "alive" and
William_James_Sidis
Heat required to raise the temperature of a given unit of mass of a substance
{\displaystyle U(S,V)} Enthalpy H ( S , p ) = U + p V {\displaystyle H(S,p)=U+pV} Helmholtz free energy A ( T , V ) = U − T S {\displaystyle A(T,V)=U-TS} Gibbs free
Specific_heat_capacity
Physical law for entropy and heat
For a similar process at constant temperature and volume, the change in Helmholtz free energy must be negative, Δ A < 0 {\displaystyle \Delta A<0} . Thus
Second_law_of_thermodynamics
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
Surname or Lastname
English, Scottish, and northern Irish
English, Scottish, and northern Irish : occupational name for a maker of machinery, mostly in wood, of any of a wide range of kinds, from Old English wyrhta, wryhta ‘craftsman’ (a derivative of wyrcan ‘to work or make’). The term is found in various combinations (for example, Cartwright and Wainwright), but when used in isolation it generally referred to a builder of windmills or watermills.Common New England Americanized form of French Le Droit, a nickname for an upright person, a man of probity, from Old French droit ‘right’, in which there has been confusion between the homophones right and wright.
Boy/Male
American, Australian
Weighing Machine
Surname or Lastname
English
English : in part probably a metonymic occupational name for a soldier in charge of a catapult- or bow-like machine used for throwing heavy missiles, Old French espringalle, Anglo-French springalde. However, Reaney and Wilson, believe the Middle English word springal(d) (which appears to have contributed to the surname), to have a different derivation, perhaps a nickname for a young man, a stripling, from spring (see Spring).
Girl/Female
Bengali, Indian
Machine
Surname or Lastname
English (chiefly Kent and Sussex)
English (chiefly Kent and Sussex) : occupational name for a designer or engineer, from a Middle English reduced form of Old French engineor ‘contriver’ (a derivative of engaigne ‘cunning’, ‘ingenuity’, ‘stratagem’, ‘device’). Engineers in the Middle Ages were primarily designers and builders of military machines, although in peacetime they might turn their hands to architecture and other more pacific functions.German : from the Latin personal name Januarius (see January 1). Jänner is a South German word for ‘January’, and so it is possible that this is one of the surnames acquired from words denoting months of the year, for example by converts who had been baptized in that month, people who were born or baptized in that month, or people whose taxes were due in January.
Surname or Lastname
Jewish (Ashkenazic)
Jewish (Ashkenazic) : occupational name for a cantor in a synagogue, from Yiddish zinger ‘singer’.English : variant of Sanger 2, in fact a Middle English recoinage from the verb sing(en) ‘to sing’.German : variant of Sänger (see Sanger 1) in the sense of ‘poet’.Isaac Merrit Singer, inventor of the eponymous sewing machine, was born in 1811 in Pittstown, NY, the son of German immigrant Adam Reisinger. He had five wives and fathered 24 children. Singer, who incorporated his company as the Singer Manufacturing Company in 1864, left a fortune worth $13 million to his various heirs.
Surname or Lastname
English and French
English and French : metonymic occupational name, from Middle English, Old French trone ‘weighing machine’.
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
Girl/Female
Hindu, Indian, Traditional
Forests
Girl/Female
Hindu
Woman, Young girl
Girl/Female
Tamil
Navasmita | நாவாஸà¯à®®à®¿à®¤à®¾
Boy/Male
Gujarati, Hindu, Indian, Kannada, Sanskrit, Telugu
Fibrous; Bird
Boy/Male
Hindu
One of the kauravas
Boy/Male
Indian, Punjabi, Sikh
Light of the King of Gods
Surname or Lastname
English
English : topographic name for someone who lived by a patch of fallow land, Middle English falwe (Old English f(e)alg). This word was used to denote both land left uncultivated for a time to recover its fertility and land recently brought into cultivation.The name is also borne by Ashkenazic Jews, as an Americanized form of one or more like-sounding Jewish surnames.
Surname or Lastname
English
English : variant of Seward 1 and 2.
Girl/Female
Armenian, Australian, Danish, Finnish, German, Greek, Swedish
Wisdom
Boy/Male
Arabic, Muslim
Orphan
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
HELMHOLTZ MACHINE
n.
In general, any combination of bodies so connected that their relative motions are constrained, and by means of which force and motion may be transmitted and modified, as a screw and its nut, or a lever arranged to turn about a fulcrum or a pulley about its pivot, etc.; especially, a construction, more or less complex, consisting of a combination of moving parts, or simple mechanical elements, as wheels, levers, cams, etc., with their supports and connecting framework, calculated to constitute a prime mover, or to receive force and motion from a prime mover or from another machine, and transmit, modify, and apply them to the production of some desired mechanical effect or work, as weaving by a loom, or the excitation of electricity by an electrical machine.
a.
Adapted or adaptable to all or to various uses, shapes, sizes, etc.; as, a universal milling machine.
n.
A contrivance for effecting ventilation; especially, a contrivance or machine for drawing off or expelling foul or stagnant air from any place or apartment, or for introducing that which is fresh and pure.
n.
A combination of persons acting together for a common purpose, with the agencies which they use; as, the social machine.
n.
A machine for cleansing or loosening wool by the action of a revolving cylinder covered with long iron spikes or teeth; a willy or willying machine; -- called also twilly devil, and devil. See Devil, n., 6, and Willy.
n.
One who, or that which, sets type; a compositor; a machine for setting type.
n.
An apparatus for measuring speed, as of machinery or vessels, but especially of projectiles.
v. t.
To make useful; to turn to profitable account or use; to make use of; as, to utilize the whole power of a machine; to utilize one's opportunities.
v. t.
To subject to the action of machinery; to effect by aid of machinery; to print with a printing machine.
n.
An instrument, devised by Professor Helmholtz, for testing the color perception of the eye, or for comparing different lights, as to their constituent colors or their relative whiteness.
n.
The working parts of a machine, engine, or instrument; as, the machinery of a watch.
n.
A joint or other connection uniting parts of machinery, or the like, as the elastic pipe of a tender connecting it with the feed pipe of a locomotive engine; especially, a pipe fitting for connecting pipes, or pipes and fittings, in such a way as to facilitate disconnection.
imp. & p. p.
of Machine
n.
A machine for concentrating ore. See Frue vanner.
v. t.
The act of employing anything, or of applying it to one's service; the state of being so employed or applied; application; employment; conversion to some purpose; as, the use of a pen in writing; his machines are in general use.
n.
An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained.
n.
One who or operates a machine; a machinist.
n.
Machines, in general, or collectively.