[x]
Create

Here is what users have to say about Quantum

useravatar
Entry added by CWAnswers Join us and contribute your knowledge as well.
Comment
Share this
Share with a friend: quantum
Your name
Your email
Recipient Email

In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of elementary particles of matter (called fermions) and of photons and other bosons. The word comes from the Latin "quantus", for "how much." Behind this, one finds the fundamental notion that a physical property may be "quantized", referred to as "quantization". This means that the magnitude can take on only certain discrete numerical values, rather than any value, at least within a range. There is a related term of quantum number.

Welcome to CWAnswers

CWAnswers is your guide to the sprawling world wide web. The directory aims to provide a useful guide made by users. You can share your knowledge as well - simply sign up and edit your first entry. For questions just contact the team at support - at - cwanswers.com.

Weblinks for Quantum

Top 10 for Quantum

Things about Quantum you find nowhere else.

Select content modules

Comments about Quantum

Please leave your comment using the comment button above the article
Share with a friend: quantum
Your name
Your email
Recipient Email

Images found for Quantum

Quantum 1Quantum 2Quantum 3
Quantum 4Quantum 5Quantum 6
Quantum 7Quantum 8Quantum 9

Wikipedia About Quantum

In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of elementary particles of matter (called fermions) and of photons and other bosons. The word comes from the Latin "quantus", for "how much." Behind this, one finds the fundamental notion that a physical property may be "quantized", referred to as "quantization". This means that the magnitude can take on only certain discrete numerical values, rather than any value, at least within a range. There is a related term of quantum number.

A photon is often referred to as a "light quantum". The energy of an electron bound to an atom (at rest) is said to be quantized, which results in the stability of atoms, and of matter in general. But these terms can be a little misleading, because what is quantized is this Planck's constant quantity whose units can be viewed as either energy multiplied by time or momentum multiplied by distance.

Usually referred to as quantum "mechanics", it is regarded by virtually every professional physicist as the most fundamental framework we have for understanding and describing nature at the infinitesimal level, for the very practical reason that it works. It is "in the nature of things", not a more or less arbitrary human preference.

Development of quantum theory

Quantum theory, the branch of physics which is based on quantization, began in 1900 when Max Planck published his theory explaining the emission spectrum of black bodies. In that paper Planck used the Natural system of units he invented the previous year. The consequences of the differences between classical and quantum mechanics quickly became obvious. But it was not until 1926, by the work of Werner Heisenberg, Erwin Schrödinger, and others, that quantum mechanics became correctly formulated and understood mathematically. Despite tremendous experimental success, the philosophical interpretations of quantum theory are still widely debated.

Planck was reluctant to accept the new idea of quantization, as were many others. But, with no acceptable alternative, he continued to work with the idea, and found his efforts were well received. Eighteen years later, when he accepted the Nobel Prize in Physics for his contributions, he called it "a few weeks of the most strenuous work" of his life. During those few weeks, he even had to discard much of his own theoretical work from the preceding years. Quantization turned out to be the only way to describe the new and detailed experiments which were just then being performed. He did this practically overnight, openly reporting his change of mind to his scientific colleagues, in the October, November, and December meetings of the German Physical Society, in Berlin, where the black body work was being intensely discussed. In this way, careful experimentalists (including Friedrich Paschen, O.R. Lummer, Ernst Pringsheim, Heinrich Rubens, and F. Kurlbaum), and a reluctant theorist, ushered in a momentous scientific revolution.

Search results for Quantum

Quantum Fishing

Gear designed to help fishermen achieve angling excellence.www.quantumfishing.com/

Quantum Magazine Home Page

Bimonthly magazine of math and science (primarily physics). Subscription based.www.nsta.org/quantum/

quantum electrodynamics: Definition from Answers.com

quantum electrodynamics n. (used with a sing. verb) The quantum theory of the properties and behavior of muons, photons, and electrons and thewww.answers.com/topic/quantum-electrodynamics

Quantum Theory

Quantum Superposition Principle. Heisenberg's Uncertainty Principle ... Why do we need Quantum Theory? ... are very small, quantum theory becomes necessary. ...www.srikant.org/core/node12.html

Quantum Sail Design Group :: Premier Sail Design and Development

... on service or information on. sailing, call Quantum direct: 1-888-QSDG-889 ... Quantum Sails and Terry Hutchinson Collaborate :: Terry Hutchinson and the ...www.quantumsails.com/

Images found for Quantum

Quantum 1Quantum 2Quantum 3
Quantum 4Quantum 5Quantum 6
Quantum 7Quantum 8Quantum 9

News about Quantum

AudioQuest Announces Availability Of The Quantum Data HT-180 Handshake Tester For HDMI

TestandMeasurement.comAudioQuest, a manufacturer and supplier of specialty A/V interconnects and cables, today announced the availability of the Quantum Data HT-180 Handshake Tester for HDMI. This new lightweight, portable test instrument enables A/V custom installers to identify the root cause of HDMI interoperability problems encountered in both field and shop environmentshttp://www.testandmeasurement.com/article.mvc/AudioQuest-Ann...

Exploring quantum physics’ relationship with romance

The Philadelphia InquirerEinstein described quantum particles as "spooky action at a distance," and the behavior of particles and waves and their relationship forever perplexed him. When dancer-choreographer Amanda Miller and filmmaker-videographer Tobin Rothlein wanted to explore the same scientific phenomenon through dance, theater technology, and romantic relationships, they had a universe of dots to connect.http://www.philly.com/inquirer/magazine/20090511_Exploring_q...

First Quantum plans to revive Zambian copper plant

Mining JournalCanada's First Quantum Minerals plans to restart copper production at its closed Bwana Mkubwa processing plant once it receives the go-ahead to open a new mine in central Zambia, the company said.http://www.mining-journal.com/production-and-markets/first-q...

(AFX UK Focus) 2009-05-11 11:29 First Quantum plans to revive Zambian copper plant

Interactive InvestorLUSAKA, May 11 (Reuters) - Canada's First Quantum Minerals plans to restart copper production at its closed Bwana Mkubwa processing plant once it receives the go-ahead to open a new mine in central Zambia, the company said. First Quantum said in an environmental assessment document submitted to the state-run Environmental Council of Zambia (ECZ) it intended to start mining at the Fishtie mine, ...http://www.iii.co.uk/news/?type=afxnews&articleid=7313348&su...

BLM Quantum promotes release of Tormented horror movie

Media Week OnlineLONDON - The launch of Pathè's teen horror film Tormented is being promoted by a multimedia campaign, with a heavy mobile and social media drive created by Havas' digital media specialist, BLM Quantum.http://www.mediaweek.co.uk/News/MostEmailed/904344/BLM-Quant...

News about Quantum

Quantum Mechanics: Uncertainty Principle Used To Detect Entanglement ...

Science DailyScienceDaily (May 12, 2009) — Scientists at the California Institute of Technology (Caltech) have developed an efficient method to detect entanglement shared among multiple parts of an optical system. They show how entanglement, in the form of ... http://www.sciencedaily.com/releases/2009/05/090508135020.ht...

Post-Quantum Correlations: Exploring the Limits of Quantum Nonlocality

PhysOrgThis figure shows levels of nonlocality as measured by the CHSH Bell inequality. Classical nonlocal correlations (green) are at 2 and below; quantum nonlocal correlations (red) are above 2 but below Tsirelson’s bound (B Q ); and post-quantum ... http://www.physorg.com/news160911231.html

Physicists Detect Single-Electron Tunneling with Quantum Dots

PhysOrgIn this simplified experimental layout, quantum dots defined by surface acoustic waves each carry a single electron through the top channel. At the weakest point of the tunnel barrier, electrons can tunnel into the open 1D channel and escape into the ... http://www.physorg.com/news160824176.html

Mike Scott

Journalism.co.ukRecent commissions include Sustainability supplement in the Times, The Guardian, Green Futures, Director Magazine, Local Government Chronicle, the Carbon Trust, policy journal Europe's World, Ethical Corporation, Quantum Magazine and Middle East ... http://www.journalism.co.uk/freelancers/981

Royal Quantum Group Announces Drilling Completed on Gleason Prospect

Market WireCALGARY, AB--(Marketwire - May 5, 2009) - Royal Quantum Group, Inc. ( OTCBB : RYQG ) (the "Company") announces drilling has been completed on the Gleason #4-16 well, located on the Nemaha Ridge in north central Oklahoma approximately 8 miles ... http://www.marketwire.com/press-release/Royal-Quantum-Group-...

Search results for Quantum

Quantum Technologies

The leader in powertrain engineering, system integration, and manufacturing of packaged fuel systems and accessories for specialty vehicles and applications, including fuel cells ... http://www.qtww.com/

Quantum Instruments

Makers of Rechargeable Batteries, digital camera batteries, Qflash T2 and X2 flashes, Turbo and Turbo Z Batteries, FreeWire wireless shutter release, The Qpaq-x Portraiture System ... http://www.qtm.com/

quantum: Definition, Synonyms from Answers.com

quantum n. , pl. -ta . A quantity or amount. A specified portion. Something that can be counted or measuredhttp://www.answers.com/topic/quantum

Quantum Creative Group

Copyright © 2005 Quantum Creative Group, Inc. All rights reserved.http://quantumcreativegroup.com/

Quantum Trading S.A.L.

Quantum Trading S.A.L. is a proud and active partner of many global brands and services. We thrive on the maintaining the high the quality of our products and suprior support we ... http://www.quantum.cc/

Wikipedia results for Quantum

Quantum - Wikipedia, the free encyclopedia

In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of ... http://en.wikipedia.org/wiki/Quantum

Quantum mechanics - Wikipedia, the free encyclopedia

Quantum mechanics is a set of principles underlying the most fundamental known description of all physical systems at the submicroscopic scale (at the atomic level).http://en.wikipedia.org/wiki/Quantum_mechanics

Quantum mysticism - Wikipedia, the free encyclopedia

Quantum mysticism is the claim that the laws of quantum mechanics incorporate mystical ideas similar to those found in certain religious traditions or New Age beliefs.http://en.wikipedia.org/wiki/Quantum_mysticism

Quantum computer - Wikipedia, the free encyclopedia

A quantum computer is a device for computation that makes direct use of quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data.http://en.wikipedia.org/wiki/Quantum_computer

Quantum information - Wikipedia, the free encyclopedia

In quantum mechanics, quantum information is physical information that is held in the "state" of a quantum system. The most popular unit of quantum information is the qubit, a two ... http://en.wikipedia.org/wiki/Quantum_information
  • Recent
  • Mine
  • Watched
  • Commented
You must be logged in to perform this operation
You must be logged in to perform this operation

Search this site

Videos found for Quantum

007 Quantum Of Solace - Official Th...

007 Quantum Of Solace - Official Theatrical Trailer [HD]007 Quantum Of Solace - Official Theatrical Trailer [HD]Flash - Video

The 21-Day 'Quantum Cleanse'

The 21-Day 'Quantum Cleanse'A new book claims a plant-based "cleanse" diet can help you lose weight.Flash - Video

Olga Kurylenko kicks ass in Quantum

Olga Kurylenko kicks ass in QuantumBond girl Olga Kurylenko said Quantum of Solace is full of action which the audience will enjoy. Kurylenko enjoyed her character's independence: "This woman is very different. She...Flash - Video

Best Of... - Quantum of Solace Revi...

Best Of... - Quantum of Solace ReviewAlex, Dan and Jeff review the latest James Bond flick, Quantum of Solace.Flash - Video

Quantum of Solace - Clip - Have you...

Quantum of Solace - Clip - Have you ever killed someone?Seeking revenge for the death of his love, secret agent James Bond (Daniel Craig)sets out to stop an environmentalist from taking control of a country's water supply.Flash - Video

Answers for Quantum

yosoyelkochWhat is the difference between quantum physics and quantum mechanics?yosoyelkochYes they are synonyms. If a school offered two courses with those names, I'd read the course catalog to see what the course includes. One might be for physics majors and introduce how to DO quantum ...Fiefie4uWhat quantum number is associated with a hydrogen atom orbital that has an energy of −5.445 x 10−19 J?Fiefie4uThe Bohr model of the atom gives the energy of energy level, n as E = -13.6/n² (in eV). Hence E = -22.79x10^-19/n² (in J.) Substituting: n = sqrt[-22.79x10^-19 / -5.445x10^-19] = 2.05 (to 3...Jessica RabbitWhat is the principal quantum number for a hydrogen atom in a state with energy equal to -2.420 x 10-19J?Jessica RabbitGo to stony brook? haha All you do is set E= 13.6 * 1.602e^-19/n^2 For example the answer to the first would be 3.infernowolf36What is the significance of Quantum Mechanics?infernowolf36Quantum mechanics provided the basis for the computers and cell phone technology you have today. We certainly have NOT reached the peak - we're just beginning. MRI machines are recent results of QM,...ZekeHow do we identify and define the margin between quantum envirement and our 3-d experience?ZekeThis is a very interesting question and extremely important. But it is an open question with no answer. There are lots of people thinking about this and trying experiments to get a hold on this. Pr...
Contact Us[X]
Your name
Email
Subject
Your comment
[X]