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![]() Hedging. Money Management | www. A hedge is an investment position intended to offset potential losses or gains that may be incurred by a companion investment. In simple language, a hedge is used to reduce any substantial losses or gains suffered by an individual or an organization. A hedge can be constructed from many types of financial instruments, including stocks, exchange- traded funds, insurance, forward contracts, swaps, options, gambles,[1] many types of over- the- counter and derivative products, and futures contracts. A stock trader believes that the stock price of Company A will rise over the next month, due to the company's new and efficient method of producing widgets. A hedge is an investment position intended to offset potential losses or gains that may be incurred by a companion investment. In simple language, a hedge is used to. Top VIdeos. Warning: Invalid argument supplied for foreach() in /srv/users/serverpilot/apps/jujaitaly/public/index.php on line 447. He wants to buy Company A shares to profit from their expected price increase, as he believes that shares are currently underpriced. But Company A is part of a highly volatile widget industry. So there is a risk of a future event that affects stock prices across the whole industry, including the stock of Company A along with all other companies. Since the trader is interested in the specific company, rather than the entire industry, he wants to hedge out the industry- related risk by short selling an equal value of shares from Company A's direct, yet weaker competitor, Company B. As an emotion regulation strategy, people can bet against a desired outcome. A New England Patriots fan, for example, could bet their opponents to win to reduce the negative emotions felt if the team loses a game. ![]() ![]() People typically do not bet against desired outcomes that are important to their identity, due to negative signal about their identity that making such a gamble entails.Betting against your team or political candidate, for example, may signal to you that you are not as committed to them as you thought you were.[1]. Debt - - borrowing in the currency to which the firm is exposed or investing in interest- bearing assets to offset a foreign currency payment - - is a widely used hedging tool that serves much the same purpose as forward contracts.
Consider an example. A German company has shipped equipment to a company in Calgary, Canada. The exporter's treasurer has sold Canadian dollars forward to protect against a fall in the Canadian currency. Alternatively she could have used the borrowing market to achieve the same objective. She would borrow Canadian dollars, which she would then change into Euros in the spot market, and hold them in a Euro deposit for two months. When payment in Canadian dollars was received from the customer, she would use the proceeds to pay down the Canadian dollar debt. Such a transaction is termed a money market hedge. Still, once all that is taken into account, and the rewards from hedging appear to be too high to pass up, management could invest the time needed to improve on its explanations of its hedging trades, in order to mollify more analysts. One potential avenue is through meetings or conference calls with the analysts and investors, suggests Wharton accounting professor Brian Bushee. Unlike mutual funds, hedge funds are not subject to some of the regulations that are designed to protect investors. Depending on the amount of assets in the hedge funds advised by a manager, some hedge fund managers may not be required to register or to file public reports with the SEC. Hedge funds, however, are subject to the same prohibitions against fraud as are other market participants, and their managers owe a fiduciary duty to the funds that they manage. Hedge fund investors do not receive all of the federal and state law protections that commonly apply to most mutual funds. For example, hedge funds are not required to provide the same level of disclosure as you would receive from mutual funds. Without the disclosure that the securities laws require for most mutual funds, it can be more difficult to fully evaluate the terms of an investment in a hedge fund. It may also be difficult to verify representations you receive from a hedge fund. UBS, one of the largest issuers of structured notes in the world, agreed to settle the SEC’s charges that it misled U. S. investors in structured notes tied to the V1. Currency Index with Volatility Cap by falsely stating that the investment relied on a “transparent” and “systematic” currency trading strategy using “market prices” to calculate the financial instruments underlying the index, when undisclosed hedging trades by UBS reduced the index price by about five percent. Hedge funds and other investment funds operate like mutual funds in that a manager makes the investment decisions for the fund. The key difference between hedge funds and mutual funds is that your participation in a hedge fund or other investment fund is a private securities transaction. Since hedge funds and other investment funds are private offerings, some of their activity is unregulated, which places more responsibility on the investor to research the fund, its managers, its financials, its track record, its investment strategy, and the risks associated with that strategy to determine whether the hedge fund or investment fund is a sound and prudent investment. What is hedging as it relates to forex trading? Investopedia. www. What is hedging as it relates to forex trading? By Ayton Mac. Eachern. A: .. Investopedia explains how to hedge foreign exchange risk using the money market, .. Forex Hedging – Introduction to Forex Hedging – Forex …. Hedging is simply coming up with a way to protect yourself against big loss. Think of a hedge as getting insurance on your trade. Hedging is a way to reduce the .. Hedging - Forex Trading Strategies - FX Market Leaders. Hedging - Forex Trading Strategy. Traders of the financial markets, small or big, .. There are many Forex trading strategies out there and hedging is one of them. Forex Strategy: The US Dollar Hedge - Daily. FX. https: //www. The_US_Dollar_Hedge. Forex Strategy: The US Dollar Hedge. Thu Sep 1. 2 1. 9: 0. GMT 2. 01. 3. by James Stanley, Currency Strategist Price Action, Swing & Short Term Trade Setups. Hedge Trading Systems for Forex - thebalance. How to use hedging to minimize Forex trading risk. Hedge Trading Systems for Forex. Search the site GO. Forex Trading Advanced Trading Basics Getting Started. Hedging Strategies for Forex Traders | Money. Show. com .. www. Hedging Strategies for Forex Traders Published: 1. EST By: Staff at FXTM. More on: FOREX. If executed well, a hedging strategy can result in profits .. Hedging - Forex | Online Forex Trading. All Forex services offered by Insta. Forex are presented in this section. Hedging against foreign exchange risks with the use of leverage offers additional benefits. Forex Hedge Definition | Investopedia. What is a 'Forex Hedge' A forex hedge is a transaction implemented by a forex trader to protect an existing or anticipated position from an unwanted move in exchange .. Profitable hedging strategies? Forex Factory. www. POSTSFIRST POST: DEC 1.Dec 1. 6, 2. 01. 2 · Profitable hedging strategies?Trading Discussion ..Hedging in forex need to be treated exactly as hedging in the regulated markets/stocks.Three Pairs Hedging @ Forex Factory. POSTSFIRST POST: FEB 0. Feb 0. 6, 2. 01. 1 · Three Pairs Hedging Trading Systems. Forex Factory. Home Forums Trades News Calendar .. Forex Factory® is a registered trademark. Connect. …. Forex Hedging Strategies to Protect Investments | Forex …. Basics & Industry. Forex Crunch is a site all about the foreign exchange market, which consists of news, opinions, daily and weekly forex analysis, technical analysis, tutorials, basics .. Forex Brokers for Hedging | List of Brokers that Allow Hedging. Forex Brokers for Hedging - An Extensive List of Brokers that Allow Hedging of Positions. Find the Best Forex Broker that allow Hedging. Hedging – Insta. Forex. Hedging types on Forex. The first type is hedging the buyer’s money to lower the risk of possible increase of an instrument price. How to Hedge Forex | Finance - Zacks. Investing › Investing for Beginners. Hedging a Forex - - or foreign exchange - - trade does more than just protect your open position. It sets you up to profit no matter which direction your currency pair .. Forex Hedge System - The Best Of The Best. Forex Robot Blog › Forex Robots. We take a look at the best Forex hedge system currently available. What features make this system the only one of its kind? VIDEO]Always in Profit - Forex Hedging Strategy - You. Tube. www. youtube. YHy. Fa. YBd. Zc. I. BY BILAL HAIDER1. MIN9. 1K VIEWS. Feb 0. German Bomb Technicians Successfully Defuse World War II- Era Allied 'Blockbuster' in Frankfurt. 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According to Smithsonian, authorities discover approximately 2,0. Just the day before, authorities evacuated 2.US- made bomb in the city of Koblenz. One town, Oranienburg, hosted Nazi chemical facilities, aircraft manufacturing plants, railway junctions and an S. S. arms depot, according to Deutsche Welle, leading the Allies to drop more than 1. Technical University of Cottbus bomb expert Wolfgang Spyra told the news agency he estimated seven to 1. Explosives used in World War II- era Allied ordnance were generally stable enough to remain dangerous for long amounts of time, though other components of the bombs often degrade, making them particularly hazardous to try and defuse.“The scale of this bomb is overwhelming,” Ries said, per CNN. I have never seen anything like it.”[CNN]. Partner Perspectives. Partner Perspectives. Partner Perspectives. White Papers. Current Issue. Digital Transformation Myths & Truths. 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Echoes, ripples, buzz'd whispers, love- root, silk- thread, crotch and vine. My respiration and inspiration, the beating of my heart, the passing. The sniff of green leaves and dry leaves, and of the shore and. The sound of the belch'd words of my voice loos'd to the eddies of. A few light kisses, a few embraces, a reaching around of arms. The play of shine and shade on the trees as the supple boughs wag. ![]() The delight alone or in the rush of the streets, or along the fields. The feeling of health, the full- noon trill, the song of me rising. Have you reckon'd a thousand acres much? Have you practis'd so long to learn to read? Have you felt so proud to get at the meaning of poems? Stop this day and night with me and you shall possess the origin of. You shall possess the good of the earth and sun, (there are millions. You shall no longer take things at second or third hand, nor look through. You shall not look through my eyes either, nor take things from me. You shall listen to all sides and filter them from your self. I have heard what the talkers were talking, the talk of the. But I do not talk of the beginning or the end. There was never any more inception than there is now. Nor any more youth or age than there is now. And will never be any more perfection than there is now. Nor any more heaven or hell than there is now. Urge and urge and urge. Always the procreant urge of the world. Out of the dimness opposite equals advance, always substance and. Always a knit of identity, always distinction, always a breed of life. To elaborate is no avail, learn'd and unlearn'd feel that it is so. Sure as the most certain sure, plumb in the uprights, well. Stout as a horse, affectionate, haughty, electrical. I and this mystery here we stand. Clear and sweet is my soul, and clear and sweet is all that is not my soul. Lack one lacks both, and the unseen is proved by the seen. Till that becomes unseen and receives proof in its turn. Showing the best and dividing it from the worst age vexes age. Knowing the perfect fitness and equanimity of things, while they. I am silent, and go bathe and admire myself. Welcome is every organ and attribute of me, and of any man hearty and clean. Not an inch nor a particle of an inch is vile, and none shall be. I am satisfied- -I see, dance, laugh, sing. As the hugging and loving bed- fellow sleeps at my side through the night. Leaving me baskets cover'd with white towels swelling the house with. Shall I postpone my acceptation and realization and scream at my eyes. That they turn from gazing after and down the road. And forthwith cipher and show me to a cent. Exactly the value of one and exactly the value of two, and which is ahead? Trippers and askers surround me. People I meet, the effect upon me of my early life or the ward and. I live in, or the nation. The latest dates, discoveries, inventions, societies, authors old and new. My dinner, dress, associates, looks, compliments, dues. The real or fancied indifference of some man or woman I love. The sickness of one of my folks or of myself, or ill- doing or loss. Battles, the horrors of fratricidal war, the fever of doubtful news. These come to me days and nights and go from me again. But they are not the Me myself. Apart from the pulling and hauling stands what I am. Stands amused, complacent, compassionating, idle, unitary. Looks down, is erect, or bends an arm on an impalpable certain rest. Looking with side- curved head curious what will come next. Both in and out of the game and watching and wondering at it. Backward I see in my own days where I sweated through fog with. I have no mockings or arguments, I witness and wait. I believe in you my soul, the other I am must not abase itself to you. And you must not be abased to the other. Loafe with me on the grass, loose the stop from your throat. Not words, not music or rhyme I want, not custom or lecture, not. Only the lull I like, the hum of your valved voice. I mind how once we lay such a transparent summer morning. How you settled your head athwart my hips and gently turn'd over upon me. And parted the shirt from my bosom- bone, and plunged your tongue. And reach'd till you felt my beard, and reach'd till you held my feet. Swiftly arose and spread around me the peace and knowledge that pass. And I know that the hand of God is the promise of my own. And I know that the spirit of God is the brother of my own. And that all the men ever born are also my brothers, and the women. And that a kelson of the creation is love. And limitless are leaves stiff or drooping in the fields. And brown ants in the little wells beneath them. And mossy scabs of the worm fence, heap'd stones, elder, mullein and. A child said What is the grass? How could I answer the child? I do not know what it is any more than he. I guess it must be the flag of my disposition, out of hopeful green. Or I guess it is the handkerchief of the Lord. A scented gift and remembrancer designedly dropt. Bearing the owner's name someway in the corners, that we may see. Whose? Or I guess the grass is itself a child, the produced babe of the vegetation. Or I guess it is a uniform hieroglyphic. And it means, Sprouting alike in broad zones and narrow zones. Growing among black folks as among white. Kanuck, Tuckahoe, Congressman, Cuff, I give them the same, I. And now it seems to me the beautiful uncut hair of graves. Tenderly will I use you curling grass. It may be you transpire from the breasts of young men. It may be if I had known them I would have loved them. It may be you are from old people, or from offspring taken soon out. And here you are the mothers' laps. This grass is very dark to be from the white heads of old mothers. Darker than the colorless beards of old men. Dark to come from under the faint red roofs of mouths. O I perceive after all so many uttering tongues. And I perceive they do not come from the roofs of mouths for nothing. I wish I could translate the hints about the dead young men and women. And the hints about old men and mothers, and the offspring taken. What do you think has become of the young and old men? And what do you think has become of the women and children? They are alive and well somewhere. The smallest sprout shows there is really no death. And if ever there was it led forward life, and does not wait at the. And ceas'd the moment life appear'd. All goes onward and outward, nothing collapses. And to die is different from what any one supposed, and luckier. Has any one supposed it lucky to be born? I hasten to inform him or her it is just as lucky to die, and I know it. I pass death with the dying and birth with the new- wash'd babe, and. And peruse manifold objects, no two alike and every one good. The earth good and the stars good, and their adjuncts all good. I am not an earth nor an adjunct of an earth. I am the mate and companion of people, all just as immortal and. They do not know how immortal, but I know.). Every kind for itself and its own, for me mine male and female. For me those that have been boys and that love women. For me the man that is proud and feels how it stings to be slighted. For me the sweet- heart and the old maid, for me mothers and the. For me lips that have smiled, eyes that have shed tears. For me children and the begetters of children. Undrape! you are not guilty to me, nor stale nor discarded. I see through the broadcloth and gingham whether or no. And am around, tenacious, acquisitive, tireless, and cannot be shaken away. La Serial Digital Interface (comunemente chiamata SDI) è un'interfaccia digitale seriale utilizzata per il trasporto di segnali video in ambito professionale e. SDTV: Standard Definition television : the digital television format that provides a video quality near the equivalent of DVD. SDTV and HDTV are the two designations.
Serial Digital Interface - Wikipedia. La Serial Digital Interface (comunemente chiamata SDI) è un'interfaccia digitale seriale utilizzata per il trasporto di segnali video in ambito professionale e broadcast. Permette maggior qualità di ripresa perché evita l'intervento dei codec di compressione impiegati nella registrazione su supporti, integrati nelle videocamere (nastro, cassetta, schede di memoria). Essa è standardizzata come ITU- R BT. SMPTE 2. 59. M. La larghezza di banda di questo collegamento è di 2. Mbit per secondo. Questa implementazione è studiata per la trasmissione di segnali televisivi PAL e NTSC (quella che oggi chiamiamo definizione standard) per cui si associa spesso la sigla SD (standard definition) alla sigla SDI (SD- SDI). ![]() Esiste una versione per trasmettere segnali ad alta definizione, conosciuta come High Definition Serial Digital Interface (HD- SDI) contemplata dallo standard SMPTE 2. M. La versione HD- SDI ha una capacità di banda di 1. Gbit per secondo. Per alcune applicazioni, come nel caso della cinematografia digitale, tale banda può non essere sufficiente. Per tale motivo si utilizza una modalità conosciuta come dual link definita dalle specifiche SMPTE 3. M. Tale versione, come dice il nome stesso, prevede l'utilizzo di due connessioni HD- SDI contemporanee. Essa è capace di una larghezza di banda nominale di 3 Gbit per secondo. L'utilizzo della modalità dual link richiede un secondo cavo tra i due apparati e questo; nel caso di installazioni complesse, può creare problemi relativi alla complessità del cablaggio e al costo. Una versione di questa interfaccia, definita 3. G- SDI, standardizzata come SMPTE 4. M, in cui, su un singolo cavo, è possibile ottenere la larghezza di banda di 3 Gbit per secondo. L'interfaccia SDI è un sistema di trasmissione di segnali digitali non compressi e non criptati ed è di larghissimo impiego all'interno delle infrastrutture di produzione televisiva. L'interfaccia è progettata per operazione su distanze brevi, a causa dell'elevato bitrate. Sia la SDI che la HD- SDI sono interfacce disponibili solo su apparecchiature di tipo professionale, a causa di alcuni accordi di licenza che non prevedono l'uso di segnali digitali non criptati su apparecchi di classe domestica, anche se esistono box esterni con ingressi compatibili e schede video idonee, per il collegamento a computer. Al pari esistono alcune modifiche per lettori DVD per implementare un'interfaccia SDI. Cavi coassiali con connettori BNC. I vari tipi di interfaccia seriale digitale usano tutti uno o più cavi coassiali con connettori BNC, con un'impedenza nominale di 7. Si tratta dello stesso tipo di cavo utilizzato per gli impianti video analogici, il che rende in teoria molto semplice l'aggiornamento delle infrastrutture e il cablaggio degli apparati, anche se su lunghe distanze può rendersi necessario l'impiego di un cavo di migliore qualità. L'ampiezza del segnale alla sorgente è di 8. V (±1. 0%) picco- picco, mentre voltaggi parecchio inferiori possono essere misurati alla ricezione a causa dell'attenuazione. Con opportuni equalizzatori sull'apparato ricevente è possibile inviare segnali a 2. Mb/s su cavi lunghi anche 1. I segnali in alta definizione hanno una lunghezza massima inferiore, nell'ordine degli 8. I segnali trasmessi sono digitali a componenti senza compressione, con codice di canale NRZI, e un registro a scorrimento a retroazione lineare viene utilizzato per ridurre la possibilità che vengano trasmesse lunghe sequenze di zero o di uno. Dal momento che nell'interfaccia SDI esiste una relazione fissa tra la temporizzazione dei campioni video (2. MHz) ed il clock (2. MHz), questa interfaccia è di tipo autosincrono; inoltre uno schema di sincronizzazione è presente sul segnale digitale come una sequenza di dieci uno seguita da venti zero. Questa sequenza non è consentita in nessun altro posto all'interno dei dati trasmessi. La sequenza di sincronizzazione diventa di venti uno seguita da quaranta zero nel caso di segnali ad alta definizione. Esempio di apparecchio che utilizza Ingressi e Uscite SDIStandard. Nome. Bitrate. Esempio di formati video. SMPTE 2. 59. MSD- SDI2. Mbit/s, 3. 60 Mbit/s, 1. Mbit/s, e 1. 77 Mbit/s. SMPTE 3. 44. MED- SDI5. Mbit/s. 48. 0p, 5. SMPTE 2. 92. MHD- SDI1. Gbit/s, e 1. 4. 85/1. Gbit/s. 72. 0p, 1. SMPTE 3. 72. MDual Link HD- SDI2. Gbit/s, e 2. 9. 70/1. Gbit/s. 10. 80p. SMPTE 4. M3. G- SDI2. 9. 70 Gbit/s, e 2. Gbit/s. 10. 80p. SMPTE ST- 2. G- SDI6 Gbit/s. 21. SMPTE ST- 2. 08. 21. G- SDI1. 2 Gbit/s. Come si osserva dalla tabella, sono usati diversi bitrate: Per gli impieghi a definizione standard, definite secondo SMPTE 2. M, i possibili bitrate sono di 2. Mb/s, 3. 60 Mb/s, 1. Mb/s e 1. 77 Mb/s. Mb/s è di gran lunga il bitrate più utilizzato, anche se nel caso di video a schermo panoramico talvolta si usano 3. Mb/s. le interfacce a 1. Mb/s furono concepite per trasmissione del video composito codificato digitalmente (sia NTSC che PAL) e sono considerate obsolete. Per gli impieghi a definizione avanzata (tipicamente 5. P) esistono diverse interfacce a 5. Mb/s, di raro impiego. Per impieghi di televisione ad alta definizione, l'interfaccia SDI è definita dello standard SMPTE 2. M. Sono definiti due bitrate, 1. Gb/s e 1. 4. 85/1. Gb/s. Il fattore di 1/1. Hz, per essere compatibile con i sistemi NTSC esistenti. La versione dello standard a 1. Gb/s supporta le altre cadenze di largo impiego, incluse quelle di 6. Hz. È piuttosto comune riferirsi a entrambi gli standard con un bitrate nominale di 1. Gb/s. Per gli impieghi che richiedono una definizione molto elevata, con maggiore risoluzione, cadenza o fedeltà cromatica di quella che si può ottenere dalla HD- SDI, lo standard SMPTE 3. M definisce l'interfaccia dual link. Come il nome lascia intendere, si tratta di due interconnessioni SMPTE 2. M in parallelo. L'interfaccia dual link supporta formati a 1. P a cadenze di 6. Hz, così come profondità di colore di 1. RGB e campionatura colore 4: 4: 4. Una interfaccia a 3 Gbit/s (più precisamente, 2. Gbit/s, ma a cui ci si riferisce comunemente come "3. G") è stata standardizzata dalla SMPTE nel giugno 2. Essa è intesa ad implementare tutte le caratteristiche fornite dalla dual link da 1. Gbit/s ad interfaccia, ma richiede un solo cavo invece che due. Lo standard SMPTE 2. M definisce, insieme all'interfaccia elettrica, anche un'interfaccia ottica che da più parti è oramai considerata obsoleta. Un'interfaccia parallela digitale a 8 bit è definita da CCIR 6. Per impieghi a definizione standard e avanzata, il formato dati parallelo è definito a 1. Y e C). Il flusso a definizione standard (SD) è composto in questa maniera: Cb Y Cr Y' Cb Y Cr Y'mentre i flussi ad alta definizione (HD) sono composti così: YY Y' Y Y' Y Y' Y Y'CCb Cr Cb Cr Cb Cr Cb Cr. In entrambi i casi, il video è codificato nel formato 4: 2: 2, il che significa che il canale di luminanza e codificata a piena larghezza di banda (1. MHz nella SD a 2. Mbit/s SD, ~7. 5 MHz nella HD), e i due canali di crominanza sono sottocampionati orizzontalmente, e codificati a metà della larghezza di banda (6. MHz o 3. 7. 5 MHz). I campioni Y, Cr e Cb sono coacquisiti, cioè acquisiti nello stesso istante di tempo, e il campione Y' è acquisito nell'intervallo di tempo tra due campioni Y adiacenti. Nello schema sopra, la Y indica i campioni di luminanza, e la C i campioni di crominanza. Cr E Cb si riferiscono ai canali di differenza di colore rosso e blue, rispettivamente. Il video attivo (e anche i dati ausiliari) possono usare ogni parola di 1. FB) inclusi, i valori 0- 3 e 1. FC- 3. FF) sono riservati e non possono far parte del video attivo. Le parole riservate sono utilizzate per due scopi, la sincronizzazione e le intestazioni dei dati ausiliari. Un pacchetto di sincronizzazione (noto comunemente come segnale di riferimento temporale o TRS) precede immediatamente il primo campione attivo di ogni linea, altrettanto immediatamente segue l'ultimo campione attivo, precedendo l'inizio del periodo di sincronizzazione orizzontale. Il pacchetto di sincronizzazione consiste di quattro parole di 1. Le prime tre parole sono costantemente 0x. FF,0,0 mentre la quarta consiste di 3 flag e di un codice di correzione d'errore. Come risultato, ci sono otto differenti pacchetti di sincronizzazione possibili. Nelle interfacce HD- SDI e dual link, i pacchetti di sincronizzazione devono presentarsi simultaneamente in entrambi i flussi Y e C. ![]() ![]() The latest news about Opera web browsers, tech trends, internet tips. Nero Platinum Suite combines dozens of programs in an ingenious package - burn, copy, edit, stream, rip and convert. Tabtight professional, free when you need it, VPN service. Nero 2. 01. 7 Platinum Suite - Award- winning all- rounder. Listen to and record from more than 1. ![]() Top VIdeos. Warning: Invalid argument supplied for foreach() in /srv/users/serverpilot/apps/jujaitaly/public/index.php on line 447. Search files on torrent trackers without registration and rating. DownloadShield - best torrent search and download manager, Trusted and Highspeed Torrents download. Usage Statistics for communitygaze.com Summary Period: March 2016 - Search String Generated 27-Aug-2017 02:07 PDT.Quantum mechanics - Simple English Wikipedia, the free encyclopedia. Quantum mechanics (QM) is the part of physics that tells how the things that make up atoms work. QM also tells how electromagnetic waves (like light) work. It is also called "quantum physics" or "quantum theory". QM is a mathematical framework (rules written in maths) for much of modern physics and chemistry. Quantum mechanics helps make sense of the smallest things in nature like protons, neutrons and electrons. It is shown that quantum mechanics is a plausible statistical description of an ontology described by classical electrodynamics. The reason that no contradiction. The World, the Flesh & the Devil An Enquiry into the Future of the Three Enemies of the Rational Soul J.D. Bernal 1929 Foyle Publishing foyle.quarkweb.com. Complex mathematics is used to study subatomic particles and electromagnetic waves because they act in very strange ways. Quantum mechanics is important to physics and chemistry. The wavelength of a wave of light. Quantum is a Latin word that means 'how much'. So a quantum of energy is a specific amount of energy. Light sources such as candles or lasers shoot out (or "emit") light in bits called photons. Photons are like packets. Each one has a certain little bit of energy. Photons are particles much smaller than atoms. The more photons a lamp shoots off, the brighter the light. ![]() Light is a form of energy that behaves like the waves in water or radio waves. The distance between the top of one wave and the top of the next wave is called a 'wavelength.' Each photon carries a certain amount, or 'quantum', of energy depending on its wavelength. Black at left is ultraviolet (high frequency); black at right is infrared (low frequency). A light's color depends on its wavelength. The color violet (the bottom or innermost color of the rainbow) has a wavelength of about 4. Photons with wavelengths of 1. UV) light. Such light cannot be seen by the human eye. On the other end of the spectrum, red light is about 7. Infrared light is about 7. Human eyes are not sensitive to infrared light either. Wavelengths are not always so small. Radio waves have longer wavelengths. The wavelengths for your FM radio can be several meters in length (for example, stations transmitting on 9. FM are emitting radio energy with a wavelength of about 3 meters, which is about 1. Each photon has a certain amount of energy related to its wavelength. The shorter the wavelength of a photon, the greater its energy. ![]()
For example, an ultraviolet photon has more energy than an infrared photon. Pictorial description of frequency. Wavelength and frequency (the number of times the wave crests per second) are inversely proportional. This means a longer wavelength will have a lower frequency, and vice versa. If the color of the light is infrared (lower in frequency than red light), each photon can heat up what it hits. So, if a strong infrared lamp (a heat lamp) is pointed at a person, that person will feel warm, or even hot, because of the energy stored in the many photons. ![]() The surface of the infrared lamp may even get hot enough to burn someone who may touch it. Humans cannot see infrared light, but we can feel the radiation in the form of heat. For example, a person walking by a brick building that has been heated by the sun will feel heat from the building without having to touch it. The mathematical formulations of quantum mechanics are abstract. A mathematical function, the wavefunction, provides information about the probability amplitude of position, momentum, and other physical properties of a particle. Many of the results of quantum mechanics are not easily visualized in terms of classical mechanics. On the left, a plasticthermometer is under a bright heat lamp. This infrared radiation warms but does not damage the thermometer. On the right, another plastic thermometer gets hit by a low intensity ultraviolet light. This radiation damages but does not warm the thermometer. If the color of the light is ultraviolet (higher in frequency than violet light), then each photon has a lot of energy, enough to hurt skin cells and cause a sunburn. In fact, most forms of sunburn are not caused by heat; they are caused by the high energy of the sun's UV rays damaging your skin cells. Even higher frequencies of light (or electromagnetic radiation) can penetrate deeper into the body and cause even more damage. X- rays and gamma rays have so much energy that they can go deep into the human body and kill cells. Humans cannot see or feel ultraviolet light, x- rays or gamma rays. They may only know they have been under such high frequency light when they get a radiation burn. Areas where it is important to kill germs often use ultraviolet lamps to destroy bacteria, fungi, etc. X- rays and gamma rays are sometimes used to kill cancer cells. Quantum mechanics started when it was discovered that a certain frequency means a certain amount of energy. Energy is proportional to frequency (E ∝ f). The higher the frequency, the more energy a photon has, and the more damage it can do. Quantum mechanics later grew to explain the internal structure of atoms. Quantum mechanics also explains the way that a photon can interfere with itself, and many other things never imagined in classical physics. Max Planck discovered the relationship between frequency and energy. Nobody before had ever guessed that frequency would be directly proportional to energy (this means that as one of them doubles, the other does, too). If we choose to use what are called natural units, then the number representing the frequency of a photon would also represent its energy. The equation would then be: E = fmeaning energy equals frequency. But the way physics grew, there was no natural connection between the units then used to measure energy and the units commonly used to measure time (and therefore frequency). So the formula that Planck worked out to make the numbers all come out right was: E = h × for, energy equals h times frequency. This h is a number called Planck's constant after its discoverer. Quantum mechanics is based on the knowledge that a photon of a certain frequency means a photon of a certain amount of energy. Besides that relationship, a specific kind of atom can only give off certain frequencies of radiation, so it can also only give off photons that have certain amounts of energy. Double- slit experiment: light goes from the light source at left to fringes (marked in the black edge) at the right. Photoelectric effect: photons hit metal and electrons are pushed away. Left to right: Max Planck, Albert Einstein, Niels Bohr, Louis de Broglie, Max Born, Paul Dirac, Werner Heisenberg, Wolfgang Pauli, Erwin Schrödinger, Richard Feynman. Isaac Newton thought that light was made of very small things that we would now call particles (he referred to them as "Corpuscles"). Christiaan Huygens thought that light was made of waves. Scientists thought that a thing cannot be a particle and a wave at the same time. Scientists did experiments to find out whether light was made of particles or waves. They found out that both ideas were right — light was somehow both waves and particles. The Double- slit experiment performed by Thomas Young showed that light must act like a wave. The Photoelectric effect discovered by Albert Einstein proved that light had to act like particles that carried specific amounts of energy, and that the energies were linked to their frequencies. This experimental result is called the "wave- particle duality" in quantum mechanics. Later, physicists found out that everything behaves both like a wave and like a particle, not just light. However, this effect is much smaller in large objects. Here are some of the people who discovered the basic parts of quantum mechanics: Max Planck, Albert Einstein, Satyendra Nath Bose, Niels Bohr, Louis de Broglie, Max Born, Paul Dirac, Werner Heisenberg, Wolfgang Pauli, Erwin Schrödinger, John von Neumann, and Richard Feynman. They did their work in the first half of the 2. Visible light given off by glowing hydrogen. Wavelengths in nanometers.)Quantum mechanics formulas and ideas were made to explain the light that comes from glowing hydrogen. The quantum theory of the atom also had to explain why the electron stays in its orbit, which other ideas were not able to explain. It followed from the older ideas that the electron would have to fall in to the center of the atom because it starts out being kept in orbit by its own energy, but it would quickly lose its energy as it revolves in its orbit. This is because electrons and other charged particles were known to emit light and lose energy when they changed speed or turned.)Hydrogen lamps work like neon lights, but neon lights have their own unique group of colors (and frequencies) of light. Industrial Rivet technical specification data sheets available for download, video demonstrations and manuals. Marshall Sales, Inc., Your full line fastener source for brands you know and trust. 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