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Amazon definitely lining up Bitcoin payments and token, confirms insider – City A.M.

Amazon is looking to accept Bitcoin payments by the end of the year, and is investigating its own token for 2022, says an insider.

The internet behemoth set tongues wagging over the weekend after publishing a job advertisement for a cryptocurrency and blockchain lead.

The vacancy, clearly a signal the company is laying down a pathway towards cryptocurrency transactions, calls for someone who can leverage domain expertise in blockchain, distributed ledger, central bank digital currencies and cryptocurrency.

It adds that it wants to develop the case for the capabilities which should be developed, drive overall vision and product strategy, and gain leadership buy-in and investment for new capabilities.

It doesnt take a genius on the outside to deduce where Amazon might be going with recruitment but, according to an insider, the plans run much deeper than simply bringing someone on board to examine possibilities.

This isnt just going through the motions to set up cryptocurrency payment solutions at some point in the future this is a full-on, well-discussed, integral part of the future mechanism of how Amazon will work, she told City AM.

It begins with Bitcoin this is the key first stage of this crypto project, and the directive is coming from the very top Jeff Bezos himself.

The insider also explained that directors of the worlds fourth largest company were keen to move towards ticking off other big cryptocurrencies once it had established a fast and secure method of Bitcoin payment.

Ethereum, Cardano and Bitcoin Cash will be next in line before they bring about eight of the most popular cryptocurrencies online, she added.

It wont take long because the plans are already there, and they have been working on them since 2019.

This entire project is pretty much ready to roll.

It is likely that the involvement of a massive player on the scale of Amazon in the cryptocurrency space would advance adoption and price of Bitcoin and the larger alt coins, but it is Bezos next plan which could cause even greater intrigue.

When all these crypto ducks are lined up, theres another twist to push things even further into Amazons favour a native token, the insider explained.

After a year of experiencing cryptocurrency as a way of making payments for goods, it is looking increasingly possible that were heading towards tokenisation.

This then becomes a multi-level infrastructure where you can pay for goods and services or earn tokens in a loyalty scheme.

Theres little more to it, for now, but you can guarantee the Bitcoin plan will be monitored closely as opportunities with Amazons own version of a crypto will be explored.

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Bitcoin price slides amid EU call to make transfers traceable, and rise of stablecoins – The Guardian

Bitcoin has slipped below $30,000 as calls grew among regulators in the US, Europe and Asia for tighter checks on cryptocurrencies, and the less volatile digi-currency known as stablecoins.

Bitcoin, the worlds largest cryptocurrency fell as much as 5% to $29,300, its lowest since 22 June, and investors said it was likely to test the $28,600 level touched last month, its lowest since early January, as it faced a variety of regulatory headwinds. Smaller cryptocurrencies such as ether and XRP also lost around 5%.

On Tuesday, European regulators outlined plans to make cryptocurrencies more traceable as part of a wider crackdown on money-laundering in the bloc.

The European Commission said companies handling virtual assets, such as bitcoin, should become subject to anti-money laundering rules, along with transparency requirements for transfers of crypto assets.

For example, a company such as a bank handling cryptocurrencies for a client would be required to include their name, address, date of birth and account number, and the name of the client. Anonymous crypto-asset wallets would also be outlawed. The proposals could take two years to become law.

Part of a wider crackdown on money laundering, the European Commission said: Given that virtual assets transfers are subject to similar money-laundering and terrorist-financing risks as wire funds transfers ... it therefore appears logical to use the same legislative instrument to address these common issues.

On Monday, US Treasury secretary, Janet Yellen, told regulators the US government must move quickly to establish a regulatory framework for stablecoins, a rapidly growing class of digital currencies.

A meeting of the nations top regulators agreed that stablecoins a type of digital currency that is pegged to established currencies such as the US dollar had the potential to be a useful means of payment. However, more regulation would be needed to protect stablecoin users and the wider financial system.

The secretary underscored the need to act quickly to ensure there is an appropriate US regulatory framework in place, the Treasury reported.

Neil Wilson, strategist at CMC Markets in London, said the price signals on bitcoin were horrid and he expected the currency to fall further after taking a beating on Tuesday.

Bitcoin has been locked in a relatively tight trading range in recent weeks, after investors sold heavily in May and June following a crackdown by China on cryptocurrency mining and trading.

But Tuesdays fall took its losses for the month to around 15%. It has fallen by more than half since hitting a peak of almost $65,000 in April.

Bob Seeman, a tech entrepreneur and author of the book Bitcoin: Unlicensed Gambling, said governments would begin to use existing licensing laws to combat what he called the bitcoin Ponzi scheme.

I believe that regulation will eventually overwhelm bitcoin,he said. Some governments may soon realise that they already have gambling license requirements in place to regulate and collect tax as a result of every bitcoin transaction having any connection to the governments jurisdiction.

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This classic trading pattern signaled that Bitcoin price had hit a top – Cointelegraph

Traders tend to focus too much on timing the right entry to a trade, but very few focus on developing a strategy for exiting positions. If one sells too early, sizable gains are left on the table and if the position is held for too long, the markets quickly snatch back the profits. Therefore, it is necessary to identify and close a trade as soon as the trend starts to reverse.

One classical setup that is considered reliable in spotting a trend reversal is the head-and-shoulders (H&S) pattern. On the longer timeframes, the H&S pattern does not form often, but when it does, traders should take note and act accordingly.

Lets look at a few ways to identify the H&S pattern and when to act on it.

The H&S pattern forms after a bull phase and indicates that a reversal may be around the corner. As the name indicates, the formation consists of a head, a left shoulder, a right shoulder, and a distinct neckline. When the pattern completes, the trend usually reverses direction.

The above image shows the structure of an H&S pattern. Before the formation of the setup, the asset is in an uptrend. At the peak where the left shoulder forms, traders book profits and this results in a decline. This forms the first trough but it is not yet a strong enough signal to provoke a trend change.

Lower levels again attract buying because the trend is still bullish and buyers manage to push the price above the left shoulder, but they are not able to sustain the uptrend.

Profit-booking by the bulls and shorting by counter-trend traders pull the price down, which finds support near the previous trough. Joining these two troughs forms the neckline of the setup.

As the price rebounds off the neckline, the bulls make one more attempt to resume the uptrend but as the price reaches the height close to the left shoulder, profit-booking sets in and the rally fizzles out.

This lower peak forms the right shoulder and is usually in line with the left shoulder. The up-move reverses and the selling picks up momentum. Finally, the bears succeed in pulling the price below the neckline. This completes the bearish pattern and the trend reverses from bullish to bearish.

Bitcoin (BTC) started a strong up-move after breaking out at $20,000 in December 2020. The BTC/USDT pair hit a local peak at $61,844 on March 13 and the price corrected, forming a trough on March 25. This local peak was the left shoulder.

The bulls considered the dip as a buying opportunity because the trend was still up. Aggressive buying then pushed the price above $61,844 and the pair hit a new all-time high at $64,854 on April 14. This level attracted selling, which pulled the price down to form the second trough on April 25. The middle peak, higher than the other peaks, formed the head.

Another attempt by the bulls to resume the uptrend failed on May 10. This formed the right shoulder and the ensuing correction broke below the neckline of the pattern. The breakdown and close below the neckline on May 15 completed this bearish setup.

Sometimes, after the breakdown, the price retests the breakdown level from the neckline but when the momentum is strong the retest may not happen, an example which is shown in the chart above.

To calculate the pattern target of this setup, determine the distance from the neckline to the top of the head. In this case, the value is $15,150. This distance is then subtracted from the breakdown point on the neckline to arrive at the minimum target objective.

In the above example, the breakdown happened close to $48,000. This projected a pattern target at $32,850. This figure should be used as a guide because sometimes the decline exceeds the target, and in other scenarios the down move ends without reaching the target objective.

Sometimes traders jump the gun and take counter-trend positions before the price breaks below the neckline of the developing H&S formation. Other times, the break below the neckline does not see follow-up selling and the price climbs back above the neckline. These instances may lead to failed setup, trapping the aggressive bears who are forced to cover their positions and this results in a short squeeze.

Cardano (ADA) started an uptrend from the $0.10 level on Nov. 20, 2020. The uptrend hit resistance in the $0.35 to $0.40 zone in January and a H&S pattern started developing. The price dipped to the neckline on Jan. 27, but the bears could not sink and close the ADA/USDT pair below the support.

When the price rebounded off the neckline on Jan. 28, it was a signal that the sentiment remained bullish. There was a minor hiccup on Jan. 30 and 31 when bears attempted to stall the up-move near the right shoulder but sustained buying from the bulls pushed the price above the head on Feb. 1. This break above the head of the pattern invalidated the setup.

When a bearish setup fails, it catches several aggressive sellers on the wrong foot. This results in a short squeeze and propels the price higher. The same thing happened in the above example and the pair soared in February.

The H&S pattern is considered a reliable reversal pattern but there are some important points to bear in mind.

A downward sloping or flat neckline is considered to be a more reliable pattern compared to an upsloping neckline. Traders should wait for the price to break down and close below the neckline before initiating trades. Pre-empting the setup could result in losses because a failed bearish pattern could result in a strong rally.

The pattern targets should only be used as a guide because sometimes the price may overshoot and continue the down move and at other times it may reverse direction before reaching the target objective.

The views and opinions expressed here are solely those of the author and do not necessarily reflect the views of Cointelegraph.com. Every investment and trading move involves risk, you should conduct your own research when making a decision.

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Central Banks Have Killed Off Childrens Savings Accounts Can Bitcoin Resurrect Them? – Forbes

Sad times for savers.

When I was a teenager, I remember staring in awe at the savings rates advertised in the window of my local bank.

If only I had a million pounds, I could live off the interest for life, I often thought to myself. And I wasnt wrong. With the Bank of Englands base rate never dipping below 5% in the 1990s, any millionaire could park their savings on the high-street and draw out three times the UKs average annual salary in completely free, airdropped money.

Better yet, real interest rateswhich are adjusted for inflationsoared above 4% for most of the decade. So savers werent just deluding themselves with high balances of a depreciating currency; they were actually growing their wealth in real terms.

Whether it should be so easy for millionaires to sit back and rake in free money is a debate for another day.

But, as far as ordinary people are concerned, keeping real interest rates in positive territory is an integral part of the unwritten social contract between governments and their citizens. As long as we are given the ability to preserve and grow our savings, we are unlikely to rage against the economic model of the day. Better to leave the government in charge and trundle along the winding path to prosperityno matter how disappointingly short a distance it takes us.

Nowhere is this more keenly felt than in the realm of childrens savings accounts. All of us want our kids to have a nest egg, anduntil the 2007 global financial crisissavings accounts were generally considered the best tool for the job.

By putting funds in a childs name and prohibiting him or her from touching them, you were guaranteeing that your kid would be better off in the long-runnot only because neither you nor they could waste the money, but also because the interest rates on these products are invariably the best in the market.

Its impossible to over-state the virtuous circle that children's savings accounts deliver to society.

Embracing financial responsibility at a young age has a profound impact on future quality of life and mental and physical well-being. Just as reckless borrowing on credit cards can ruin lives, so prudent saving can transform them for the betteropening doors to higher education; career freedom; a better work-life balance; private healthcare and so much more. And it all begins in childhood, when you learnor dont learnthe consequences of choosing to indulge versus choosing to be frugal.

All of which makes the global trend towards ultra-loose monetary policywhereby central banks crank up the money printers while slashing interest ratestruly stomach churning.

Supporters claim that this two-pronged approach has saved the global economy by prodding consumers and businesses to invest and spend.

In reality, the measures are not prodding but whipping. Real interest rates have cratered to -2.4% for Brits and -5.15% for Americans (calculated by deducting the latest CPI inflation figures for the two countries from their respective base interest rates). In this manipulated environment, the opportunity cost of holding cash is so great that individuals and institutions have little choice but to hurl their money at risk assetseverything from dodgy business loans to absurdly cheap mortgages to over-inflated stock markets.

This is nothing more than a gamble that stability will return and covid-19 will flutter away before lasting damage is caused by the profligacy. If the gamble pays off, central bankers will take all the credit. If it blows up, and if a wave of insolvencies engulfs the world, devastating economies, they will reject all accountability.

Instead, it will be individual citizenspeople who wanted to put their money in a savings account, but who were coerced against doing soleft holding the bag.

No-one epitomizes the short-sightedness of these policies better than Christine Lagarde, the convicted criminal who currently serves as president of the European Central Bank. This was her attempt to defend negative real interest rates in April:

I completely appreciate that people who are saving are not satisfied with the consequences of negative rates, but we have to look at the situation from a global point of view. We cannot look at a particular depositor or a particular category. We have to look at the whole economy.

In other words, in the world according to Lagarde and most central bankers, savers are an isolated group of citizensa particular categorywho have chosen to behave a certain way and who should face consequences for their behavior. (Consequences that are imposed by diktat and without a right of appeal.) These people do not, in her view, embody the virtue of financial prudencea positive trait that has been encouraged, in one form or another, since the dawn of money. They are not acting responsibly, and they should have their wealth diluted if they persist with their actions.

In such a demented worldview, its perhaps not surprising that little Timmy and his piggybank are seen as part of the problem. Thus British kids can earn no more than 1% on balances above 3,000 in an easy-access savings account, and no more than 2.5% in a Junior ISA thats locked away until theyre 18.

American kids are clobbered even harder thanks to higher inflation rates and lower savings rates: 0.55% is the market leader for balances above $1,000. (Alliant Credit Union describes that productin which deposits currently lose 4.85% of their purchasing power each yearas the perfect opportunity to teach kids about money. Touch!)

The simple truth is that the Bank of England and the Federal Reserve want it to be physically impossible for parents to do the right thing and put cash aside for their kids. Every penny stashed away in a savings account is a penny not being used to keep the global economy chugging along, blissfully ignorant of its woes.

That wont stop an eventual market downturn, of course. When an ill person numbs their pain with alcohol and refuses to see a doctor, their illness doesnt magically disappear. It festers. They deteriorate. The path to recovery becomes more arduous.

And if that doesnt worry you, perhaps this chart will:

Alright for some: the richest 1% of Americans have added $10tr to their net worth during the ... [+] pandemic (green line), versus just $700bn gained by the poorest 50% (pink line).

This is what happens when central banks arrogantly assume that pumping money into the economy via financial institutions will create a trickle-down effect for ordinary citizens. Big surprise: it doesnt. Since March 2020, when the Federal Reserve put its stimulus on steroids because of covid-19, the richest 1% of Americans have added $10tr to their net worth (green line). Over the same period, the poorest 50% have gained just $700 billion (pink line). Unfathomable amounts of money have poured into risk assets that are inaccessible to most citizens, deepening inequality and fueling dangerous bubbles in all corners of the economy. Mere scraps find their way to the pockets of those in need.

The final insult? Earlier this month, six of the biggest U.S. banks posted combined profits of $42bn for the second quarter of 2021. Thats $462m profit every single day. These are the same banks that say they cant afford to pay you or your kids positive real interest.

At the beginning of this article, I stated that citizens are unlikely to rage against the economic model of the day as long as they are given the ability to preserve and grow their savings.

Clearly, we are not being given that ability by Western governments.

In the headline of this article, I hinted that bitcointhe decentralized cryptocurrency launched in 2009 in response to central-bank excesses during the global financial crisismay offer a solution. It will surprise some readers that Ive waited until the end of my article to mention bitcoin again. But that is because understanding the problem is a lot more important than subscribing to any one solution.

Bitcoin, in my own, biased opinion, is the best chance that society has to create a stable, incorruptible currency for global citizens: its entirely free from central-bank manipulation; its deflationary by dint of its fixed supply, and therefore neither loses purchasing power nor has any need for interest rates; and its accessible to anyone with a mobile phonebe they a millionaire in West London, or a farmer in Equatorial Guinea.

Once you understand how and why central banks are impoverishing your children, it doesnt take long to start looking for ways to preserve your wealth. As Lagarde herself puts it: If there is an escape, that escape will be used.

Ill leave it up to you to investigate whether bitcoin is the most appealing escape hatch.

Financial disclosure: the author has owned bitcoin since 2013.

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Factors To Take Into Consideration For Choosing The Suitable Bitcoin Wallet! – State-Journal.com

Bitcoin is the virtual currency which is needed to be stored in the bitcoin wallet. But the thing is that there are various bitcoin wallets that you can find on the internet, so it confuses the investors which one they should choose. If you are also starting to invest in bitcoin, then you need a bitcoin wallet for it which secures your bitcoin transactions and the coins as well. The people who want to involve in bitcoin trading on the Official Websiteis also advised to choose a suitable bitcoin wallet. There are a lot of things that you need to take into consideration or making the right choice of the bitcoin wallet.

If you have no idea about these essential things, you should surely go through the mentioned below points.

Security

Every bitcoin wallet claims to be very securely but just saying is not enough. You need to learn about the bitcoin wallet to know which one is offering you higher security. There are so many types of bitcoin wallets available like the paper wallet, web wallet, hardware wallet etc. if you are choosing the web wallet, then you need to check that the site has HTTP or HTTPS.

You need to know that the site which has HTTPS is more secure, and you should always choose HTTPS. The bitcoin investor should indeed check that the bitcoin wallet is strong and offering secure login to its user or not. one more factor that you should look for in a bitcoin wallet is two-factor authentication. Before you make any decision to buy a bitcoin wallet, looking for security features is a must for you.

The anonymity of the users

Another most essential factor which you should consider is that the wallet you are going to choose is maintaining the anonymity of the user or not. You must check that the bitcoin wallet is accepting only emails or require some more information from the user. These are the thing which you should look into a bitcoin wallet because the anonymity of the user is one of the most precious things, and the bitcoin user doesn't want to reveal their identity at any cost.

User interface

A good bitcoin wallet always offers easy-to-use features, and they provide the best experience to beginners also. It means that it doesn't matter you are using the bitcoin wallet for the very first time, but you will not face any of the issues in using it. So, the user interface which the bitcoin wallet is offering needed to be considered. It is also essential for you to check that the bitcoin wallet you are choosing is compatible with the iPhone and Android users or not.

Multi -sig

It is one of the most preferred methods which is included in the security of the bitcoin wallet. It helps in protecting your bitcoin wallet from the hacker and any other attackers. You should make sure that the bitcoin wallet which you are considering buying is offering you the feature of multi-sig. The multi-sign means that it requires multiple keys for permitting the transactions of bitcoins. It is crucial for the user that they should protect their multi-sig, which is used for authenticating the transactions so that they can be processed.

Reputed and reliable bitcoin wallet

It is always best for you to choose a bitcoin wallet that is reputed and reliable. This is important for you to research the bitcoin wallet on google in order to know about the reviews of the customers. You should make sure that you are choosing the reputed bitcoin wallet which has good reviews from the user.

Transparency

The bitcoin wallet should always be transparent so that it can explain its services, functions and security levels to its users. You should be looking for a bitcoin wallet that is completely open-source and is providing your bitcoin enough level of security. When the bitcoin wallet is no open-sourced, then it can be difficult to predict that it is reliable or not. You should not forget to check the security code of your wallet which you are going to select, and make sure that it is up to date.

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3 reasons why traders think Bitcoin price bottomed at $29,500 – Cointelegraph

Traders are showing a renewed sense of hope after Bitcoins (BTC) price held onto the $32,000 range for what could be the second day in a row.

Data from Cointelegraph Markets Pro and TradingView shows that bulls have managed to regroup at the $32,000level, where Bitcoin has hovered throughout the day, but traders are patiently waiting for further confirmation that Bitcoin may be in the midst of a trend reversal before fully reentering the market.

Heres what analysts and investors expect next from Bitcoins price.

According to a recent report from Delphi Digital, an aggressive reversal was observed in the CME futures basis on Wednesday and that this is a bullish sign for BTC traders who scooped up cheap futures contracts. The resulting contango is interpreted as bullish because the futures price is above the spot price of the asset.

As seen in the chart above, the open interest for CMEs Bitcoin futures doubled from $1.25 billion on Monday to $2.5 billion on Tuesday after institutions positioned themselves slightly net long after an extended period of being short.

While leveraged funds remain net short as they utilize CME futures to hedge their spot exposure, Delphi Digital indicated that they have probably closed out some amount of their positions.

Delphi Digital said:

Bitcoins recovery above $32,000 reignited bullish optimism for many traders, but the road ahead is by no means a walk in the park due to the multiple zones of resistance that lie overhead.

According to pseudonymous crypto Twitter analyst Rekt Capital, many of the previous support levels for Bitcoin, including $35,000 and $37,000, could soon act as resistance.

At the time of writing, Bitcoins price is in the process of attempting a sustained breakout above $32,200 where the price has been stuck for most of the day.

Another sign of bullishness came from pseudonymous Twitter user IzzyEibani, who highlighted the recent spike in exchange inflows as a possible sign that the bottom is in.

A closer look at the chart below shows that there have been three instances in the past on Aug. 1, 2017, Nov. 30, 2018, and March 12, 2020, where inflows to exchanges spiked in a manner similar to what was seen on July 16. Each time, the market bottomed within a short time period following the inflows.

If the market unfolds in a similar fashion to the historical pattern, there is a strong possibility that the recent drop to $29,500 may have been the bottom.

The views and opinions expressed here are solely those of the author and do not necessarily reflect the views of Cointelegraph.com. Every investment and trading move involves risk, you should conduct your own research when making a decision.

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It’s very dangerous to invest in stocks and bitcoin right now, long-time bear David Tice warns – CNBC

The investor who sold his bear fund as the 2008 financial crisis was unfolding is delivering a grim long-term prognosis to Wall Street.

From the S&P 500 to Big Tech to bitcoin, David Tice warns it's a "very dangerous period" for investors right now.

"The market is very overpriced in terms of future earnings. We are adding debt like we've never seen,"the former Prudent Bear Fund manager told "Trading Nation" on Friday."We have the Treasury market acting very strange with rates falling dramatically."

Tice, who's known for making bearish bets during bull markets, now advises the AdvisorShares Ranger Equity Bear ETF, which has $70 million in assets under management. The fund is up 3% over the past month, but it's off 62% over the last two years.

He acknowledges it's tough to time the next major pullback, and he's often early. However, Tice is convinced a market meltdown is unavoidable.

"We're not out of the woods yet, and this is a dangerous market," Tice reiterated.

He's encouraging investors to weigh the risks: Try to earn 3% to 5% near-term gains while contending with the threat of a 40% pullback? Tice thinks it's a bet not worth taking.

Tice is particularly worried about Big Tech and the FAANG stocks, which include Facebook, Apple, Amazon, Netflix and Alphabet, formerly known as Google.

"A lot of money has been thrown at Alphabet and Microsoft, Apple and Facebook, Twitter, etc.," noted Tice. "Costs are going up in that sector."

He's also urging investors to be vigilant in the cryptocurrency space. Tice, who came into the year as a bitcoin bull, turned bearish on bitcoin when it hit all-time highs in March.

"We had a bitcoin position when bitcoin was at $10,000," Tice said. "However, when it got to $60,000 we felt like that was long in the tooth... Lately, there's been a lot more uproar from central bankers, Bank for International Settlements [and] the Bank of England have made profound negative statements. I think it's very dangerous to hold today."

Due to his overall bearishness, Tice co-founded hedge fund Morand-Tice Capital Management almost exactly a year ago. It's devoted to metal and mining stocks. Tice, a long-time gold and silver bull, believes it's a once in a decade opportunity for investors.

"You look at this lack of discipline in monetary and fiscal markets. Gold is truly the place to be," said Tice. "Over 5,000 years, gold and silver do very well as protection against fiat money."

Gold closed at $1,812.50 an ounce on Friday. It's down 4% so far this year and up 28% over the past two years. Tice expects the precious metal to rally 10% to $2,000 by December.

"I would be owning gold, especially gold and silver mining companies. These companies have never been cheaper. Many are at single digit multiples yet have potentially 15 to 20% growth rate in earnings even with this flat gold price," Tice said. "But then you add on what we think is going to be a 20% annual increase in the gold price, and these companies are going to be outstanding opportunities."

Disclosure: David Tice owns gold, silver and mining stocks.

Disclaimer

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Quantum – Wikipedia

Aspect of physics

In physics, a quantum (plural quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. The fundamental notion that a physical property can be "quantized" is referred to as "the hypothesis of quantization".[1] This means that the magnitude of the physical property can take on only discrete values consisting of integer multiples of one quantum.

For example, a photon is a single quantum of light (or of any other form of electromagnetic radiation). Similarly, the energy of an electron bound within an atom is quantized and can exist only in certain discrete values. (Atoms and matter in general are stable because electrons can exist only at discrete energy levels within an atom.) Quantization is one of the foundations of the much broader physics of quantum mechanics. Quantization of energy and its influence on how energy and matter interact (quantum electrodynamics) is part of the fundamental framework for understanding and describing nature.

The word quantum is the neuter singular of the Latin interrogative adjective quantus, meaning "how much". "Quanta", the neuter plural, short for "quanta of electricity" (electrons), was used in a 1902 article on the photoelectric effect by Philipp Lenard, who credited Hermann von Helmholtz for using the word in the area of electricity. However, the word quantum in general was well known before 1900,[2] e.g. quantum was used in E.A. Poe's Loss of Breath. It was often used by physicians, such as in the term quantum satis. Both Helmholtz and Julius von Mayer were physicians as well as physicists. Helmholtz used quantum with reference to heat in his article[3] on Mayer's work, and the word quantum can be found in the formulation of the first law of thermodynamics by Mayer in his letter[4] dated July 24, 1841.

In 1901, Max Planck used quanta to mean "quanta of matter and electricity",[5] gas, and heat.[6] In 1905, in response to Planck's work and the experimental work of Lenard (who explained his results by using the term quanta of electricity), Albert Einstein suggested that radiation existed in spatially localized packets which he called "quanta of light" ("Lichtquanta").[7]

The concept of quantization of radiation was discovered in 1900 by Max Planck, who had been trying to understand the emission of radiation from heated objects, known as black-body radiation. By assuming that energy can be absorbed or released only in tiny, differential, discrete packets (which he called "bundles", or "energy elements"),[8] Planck accounted for certain objects changing color when heated.[9] On December 14, 1900, Planck reported his findings to the German Physical Society, and introduced the idea of quantization for the first time as a part of his research on black-body radiation.[10] As a result of his experiments, Planck deduced the numerical value of h, known as the Planck constant, and reported more precise values for the unit of electrical charge and the AvogadroLoschmidt number, the number of real molecules in a mole, to the German Physical Society. After his theory was validated, Planck was awarded the Nobel Prize in Physics for his discovery in 1918.

While quantization was first discovered in electromagnetic radiation, it describes a fundamental aspect of energy not just restricted to photons.[11]In the attempt to bring theory into agreement with experiment, Max Planck postulated that electromagnetic energy is absorbed or emitted in discrete packets, or quanta.[12]

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History of quantum mechanics – Wikipedia

The history of quantum mechanics is a fundamental part of the history of modern physics. Quantum mechanics' history, as it interlaces with the history of quantum chemistry, began essentially with a number of different scientific discoveries: the 1838 discovery of cathode rays by Michael Faraday; the 185960 winter statement of the black-body radiation problem by Gustav Kirchhoff; the 1877 suggestion by Ludwig Boltzmann that the energy states of a physical system could be discrete; the discovery of the photoelectric effect by Heinrich Hertz in 1887; and the 1900 quantum hypothesis by Max Planck that any energy-radiating atomic system can theoretically be divided into a number of discrete "energy elements" (Greek letter epsilon) such that each of these energy elements is proportional to the frequency with which each of them individually radiate energy, as defined by the following formula:

where h is a numerical value called Planck's constant.

Then, Albert Einstein in 1905, in order to explain the photoelectric effect previously reported by Heinrich Hertz in 1887, postulated consistently with Max Planck's quantum hypothesis that light itself is made of individual quantum particles, which in 1926 came to be called photons by Gilbert N. Lewis. The photoelectric effect was observed upon shining light of particular wavelengths on certain materials, such as metals, which caused electrons to be ejected from those materials only if the light quantum energy was greater than the work function of the metal's surface.

The phrase "quantum mechanics" was coined (in German, Quantenmechanik) by the group of physicists including Max Born, Werner Heisenberg, and Wolfgang Pauli, at the University of Gttingen in the early 1920s, and was first used in Born's 1924 paper "Zur Quantenmechanik".[1] In the years to follow, this theoretical basis slowly began to be applied to chemical structure, reactivity, and bonding.

Ludwig Boltzmann suggested in 1877 that the energy levels of a physical system, such as a molecule, could be discrete (as opposed to continuous). He was a founder of the Austrian Mathematical Society, together with the mathematicians Gustav von Escherich and Emil Mller. Boltzmann's rationale for the presence of discrete energy levels in molecules such as those of iodine gas had its origins in his statistical thermodynamics and statistical mechanics theories and was backed up by mathematical arguments, as would also be the case twenty years later with the first quantum theory put forward by Max Planck.

In 1900, the German physicist Max Planck reluctantly introduced the idea that energy is quantized in order to derive a formula for the observed frequency dependence of the energy emitted by a black body, called Planck's law, that included a Boltzmann distribution (applicable in the classical limit). Planck's law[2] can be stated as follows: I ( , T ) = 2 h 3 c 2 1 e h k T 1 , {displaystyle I(nu ,T)={frac {2hnu ^{3}}{c^{2}}}{frac {1}{e^{frac {hnu }{kT}}-1}},} where:

The earlier Wien approximation may be derived from Planck's law by assuming h k T {displaystyle hnu gg kT} .

Moreover, the application of Planck's quantum theory to the electron allowed tefan Procopiu in 19111913, and subsequently Niels Bohr in 1913, to calculate the magnetic moment of the electron, which was later called the "magneton;" similar quantum computations, but with numerically quite different values, were subsequently made possible for both the magnetic moments of the proton and the neutron that are three orders of magnitude smaller than that of the electron.

In 1905, Albert Einstein explained the photoelectric effect by postulating that light, or more generally all electromagnetic radiation, can be divided into a finite number of "energy quanta" that are localized points in space. From the introduction section of his March 1905 quantum paper, "On a heuristic viewpoint concerning the emission and transformation of light", Einstein states:

"According to the assumption to be contemplated here, when a light ray is spreading from a point, the energy is not distributed continuously over ever-increasing spaces, but consists of a finite number of 'energy quanta' that are localized in points in space, move without dividing, and can be absorbed or generated only as a whole."

This statement has been called the most revolutionary sentence written by a physicist of the twentieth century.[3] These energy quanta later came to be called "photons", a term introduced by Gilbert N. Lewis in 1926. The idea that each photon had to consist of energy in terms of quanta was a remarkable achievement; it effectively solved the problem of black-body radiation attaining infinite energy, which occurred in theory if light were to be explained only in terms of waves. In 1913, Bohr explained the spectral lines of the hydrogen atom, again by using quantization, in his paper of July 1913 On the Constitution of Atoms and Molecules.

These theories, though successful, were strictly phenomenological: during this time, there was no rigorous justification for quantization, aside, perhaps, from Henri Poincar's discussion of Planck's theory in his 1912 paper Sur la thorie des quanta.[4][5] They are collectively known as the old quantum theory.

The phrase "quantum physics" was first used in Johnston's Planck's Universe in Light of Modern Physics (1931).

In 1923, the French physicist Louis de Broglie put forward his theory of matter waves by stating that particles can exhibit wave characteristics and vice versa. This theory was for a single particle and derived from special relativity theory. Building on de Broglie's approach, modern quantum mechanics was born in 1925, when the German physicists Werner Heisenberg, Max Born, and Pascual Jordan[6][7] developed matrix mechanics and the Austrian physicist Erwin Schrdinger invented wave mechanics and the non-relativistic Schrdinger equation as an approximation of the generalised case of de Broglie's theory.[8] Schrdinger subsequently showed that the two approaches were equivalent.

Heisenberg formulated his uncertainty principle in 1927, and the Copenhagen interpretation started to take shape at about the same time. Starting around 1927, Paul Dirac began the process of unifying quantum mechanics with special relativity by proposing the Dirac equation for the electron. The Dirac equation achieves the relativistic description of the wavefunction of an electron that Schrdinger failed to obtain. It predicts electron spin and led Dirac to predict the existence of the positron. He also pioneered the use of operator theory, including the influential braket notation, as described in his famous 1930 textbook. During the same period, Hungarian polymath John von Neumann formulated the rigorous mathematical basis for quantum mechanics as the theory of linear operators on Hilbert spaces, as described in his likewise famous 1932 textbook. These, like many other works from the founding period, still stand, and remain widely used.

The field of quantum chemistry was pioneered by physicists Walter Heitler and Fritz London, who published a study of the covalent bond of the hydrogen molecule in 1927. Quantum chemistry was subsequently developed by a large number of workers, including the American theoretical chemist Linus Pauling at Caltech, and John C. Slater into various theories such as Molecular Orbital Theory or Valence Theory.

Beginning in 1927, researchers attempted to apply quantum mechanics to fields instead of single particles, resulting in quantum field theories. Early workers in this area include P.A.M. Dirac, W. Pauli, V. Weisskopf, and P. Jordan. This area of research culminated in the formulation of quantum electrodynamics by R.P. Feynman, F. Dyson, J. Schwinger, and S. Tomonaga during the 1940s. Quantum electrodynamics describes a quantum theory of electrons, positrons, and the electromagnetic field, and served as a model for subsequent quantum field theories.[6][7][9]

The theory of quantum chromodynamics was formulated beginning in the early 1960s. The theory as we know it today was formulated by Politzer, Gross and Wilczek in 1975.

Building on pioneering work by Schwinger, Higgs and Goldstone, the physicists Glashow, Weinberg and Salam independently showed how the weak nuclear force and quantum electrodynamics could be merged into a single electroweak force, for which they received the 1979 Nobel Prize in Physics.

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What is quantum theory? – Definition from WhatIs.com

Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level.The nature and behavior of matter and energy at that level is sometimes referred to as quantum physics and quantum mechanics. Organizations in several countries have devoted significant resources to the development of quantum computing, which uses quantum theory to drastically improve computing capabilities beyond what is possible using today's classical computers.

In 1900, physicist Max Planck presented his quantum theory to the German Physical Society. Planck had sought to discover the reason that radiation from a glowing body changes in color from red, to orange, and, finally, to blue as its temperature rises. He found that by making the assumption that energy existed in individual units in the same way that matter does, rather than just as a constant electromagnetic wave - as had been formerly assumed - and was therefore quantifiable, he could find the answer to his question. The existence of these units became the first assumption of quantum theory.

Planck wrote a mathematical equation involving a figure to represent these individual units of energy, which he called quanta. The equation explained the phenomenon very well; Planck found that at certain discrete temperature levels (exact multiples of a basic minimum value), energy from a glowing body will occupy different areas of the color spectrum. Planck assumed there was a theory yet to emerge from the discovery of quanta, but, in fact, their very existence implied a completely new and fundamental understanding of the laws of nature. Planck won the Nobel Prize in Physics for his theory in 1918, but developments by various scientists over a thirty-year period all contributed to the modern understanding of quantum theory.

The two major interpretations of quantum theory's implications for the nature of reality are the Copenhagen interpretation and the many-worlds theory. Niels Bohr proposed the Copenhagen interpretation of quantum theory, which asserts that a particle is whatever it is measured to be (for example, a wave or a particle), but that it cannot be assumed to have specific properties, or even to exist, until it is measured. In short, Bohr was saying that objective reality does not exist. This translates to a principle called superposition that claims that while we do not know what the state of any object is, it is actually in all possible states simultaneously, as long as we don't look to check.

To illustrate this theory, we can use the famous and somewhat cruel analogy of Schrodinger's Cat. First, we have a living cat and place it in a thick lead box. At this stage, there is no question that the cat is alive. We then throw in a vial of cyanide and seal the box. We do not know if the cat is alive or if the cyanide capsule has broken and the cat has died. Since we do not know, the cat is both dead and alive, according to quantum law - in a superposition of states. It is only when we break open the box and see what condition the cat is that the superposition is lost, and the cat must be either alive or dead.

The second interpretation of quantum theory is the many-worlds (or multiverse theory. It holds that as soon as a potential exists for any object to be in any state, the universe of that object transmutes into a series of parallel universes equal to the number of possible states in which that the object can exist, with each universe containing a unique single possible state of that object. Furthermore, there is a mechanism for interaction between these universes that somehow permits all states to be accessible in some way and for all possible states to be affected in some manner. Stephen Hawking and the late Richard Feynman are among the scientists who have expressed a preference for the many-worlds theory.

Although scientists throughout the past century have balked at the implications of quantum theory - Planck and Einstein among them - the theory's principles have repeatedly been supported by experimentation, even when the scientists were trying to disprove them. Quantum theory and Einstein's theory of relativity form the basis for modern physics. The principles of quantum physics are being applied in an increasing number of areas, including quantum optics, quantum chemistry, quantum computing, and quantum cryptography.

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What is quantum theory? - Definition from WhatIs.com

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