Keyword: quantum

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  • WILL CHINA LEAD A STAMPEDE OUT OF THE US DOLLAR? (Very informative charts!)

    11/29/2006 5:30:58 PM PST · by GodGunsGuts · 284 replies · 3,754+ views
    FinacialSense ^ | November 29, 2006 | Gary Dorsch
    WILL CHINA LEAD A STAMPEDE OUT OF THE US DOLLAR? by Gary Dorsch Editor, Global Money Trends Magazine November 29, 2006 The $2 trillion per day foreign exchange market never sleeps. Yet for the past six months, the big-3 central banks, the Federal Reserve, the European Central Bank, and the Bank of Japan managed to lull the currency markets into a deep trance. Since last May, the big-3 central banks corralled the US dollar to within a 3% to 5% trading range against the British pound, the Euro and Japanese yen. The big-3 central banks utilized their three major weapons,...
  • Atom spied interfering with electron flow

    11/28/2006 8:10:33 PM PST · by annie laurie · 10 replies · 696+ views
    NewScientistTech ^ | 27 November 2006 | Will Knight
    An individual "dopant" atom has been spied interfering with the flow of electrons through a silicon transistor for the first time. Researchers say the feat could help scientists squeeze more power out of conventional computers and ultimately develop silicon-based quantum computers. Dopants are chemical impurities that affect the flow of electrons through a conducting or semiconducting material. They are deliberately added to pure silicon, for example, to create different types of electronic component. To analyse a lone dopant atom in action, Sven Rogge and colleagues at Delft University of Technology in the Netherlands cryogenically cooled 35-nanometre-wide silicon wires, taken from...
  • Scientists present method for entangling macroscopic objects

    10/30/2006 7:29:53 PM PST · by annie laurie · 15 replies · 639+ views ^ | October 24, 2006 | Lisa Zyga
    Building upon recent studies on optomechanical entanglement with lasers and mirrors, a group of scientists has developed a theoretical model using entanglement swapping in order to entangle two micromechanical oscillators. This ability could lead to advances in information processing, as well as other applications that use micromechanical resonators, such as electrometers, displacement detectors, and radio frequency signal processors, wrote scientists Stefano Pirandola et al. in a recent Physical Review Letters. "Until now, entanglement has been observed only for optical modes, i.e., photons (which are massless particles)," Pirandola told "The significance of purely mechanical entanglement would be that it involves...
  • Spooky steps to a quantum network

    10/09/2006 10:12:30 PM PDT · by annie laurie · 11 replies · 763+ views
    NewScientistTech ^ | 04 October 2006 | Zeeya Merali
    Even if quantum computers can be made to work, there will still be two big obstacles preventing quantum networks becoming a reality. First, quantum bits, or qubits, stored in matter will have to be transferred to photons to be transmitted over long distances. Secondly, errors that creep in during transmission have to be corrected. Two unrelated studies have now shown how to clear these hurdles. Both studies use quantum entanglement, a spooky property that links particles however far apart they are. Measuring a quantum property on one particle immediately affects the other, and this effect can be used to “teleport”...
  • Scientists teleport two different objects

    10/04/2006 7:11:24 PM PDT · by TampaDude · 36 replies · 1,592+ views ^ | 10/04/2006 | Reuters
    LONDON, England (Reuters) -- Beaming people in Star Trek fashion is still in the realms of science fiction but physicists in Denmark have teleported information from light to matter bringing quantum communication and computing closer to reality. Until now scientists have teleported similar objects such as light or single atoms over short distances from one spot to another in a split second. But Professor Eugene Polzik and his team at the Niels Bohr Institute at Copenhagen University in Denmark have made a breakthrough by using both light and matter. "It is one step further because for the first time it...
  • Tracing the limits of quantum weirdness

    09/14/2006 8:19:40 PM PDT · by annie laurie · 16 replies · 724+ views
    New Scientist ^ | 13 September 2006 | Mark Buchanan
    Heisenberg's uncertainty principle limits what we can know about the quantum world. Now the uncertainty principle is being harnessed to see if it is possible to identify a point at which matter begins to exhibit weird quantum behaviour. ... Schwab's team fabricated a nanoscale resonator - the equivalent of a tiny pendulum - on a silicon chip, which oscillates at 20 megahertz. On the same chip, they created a single-electron transistor and electrically coupled it to the resonator in such a way that any change in the resonator's position caused a change in the transistor's current. Measuring the current should...
  • 'Electron-spin' trick boosts quantum computing

    08/21/2006 7:17:02 PM PDT · by annie laurie · 28 replies · 760+ views
    NewScientist Tech ^ | 16 August 2006 | Unattributed
    A new silicon chip capable of manipulating the spin of a single electron could ultimately allow futuristic quantum computers to be built using conventional electronic technology, researchers say. A quantum bit, or "qubit", is analogous the bits used in conventional computers. But, instead of simply switching between two states, representing "0" and "1", quantum physics permits a qubit to exist in more than one state simultaneously, until its state is measured. This means quantum computers can essentially perform multiple calculations at once, giving them the potential to be exponentially more powerful than conventional computers ... 'Breakthrough experiment' Researchers have also...
  • Quantum Computer: Laser tweezers sort atoms

    07/23/2006 5:30:08 PM PDT · by annie laurie · 16 replies · 3,141+ views ^ | July 12, 2006 | University of Bonn
    Physicists of the University of Bonn have taken one more important hurdle on the path to what is known as a quantum computer: by using 'laser tweezers' they have succeeded in sorting up to seven atoms and lining them up. The researchers filmed this process and report on their breakthrough in the next issue of the prestigious journal Nature (13th July 2006). In the experiment the research team headed by Dr. Arno Rauschenbeutel and Professor Dieter Meschede decelerated several caesium atoms for a period of several seconds so that they were hardly moving, then loaded them onto a 'conveyor belt'...
  • French court upholds Soros' conviction (Fights insider trading conviction nearly 20 years ago)

    06/14/2006 9:22:41 AM PDT · by NormsRevenge · 37 replies · 1,185+ views
    AP on Yahoo ^ | 6/14/06 | Angela Domand - ap
    PARIS - France's highest court upheld George Soros' conviction for insider trading Wednesday in a case dating back nearly 20 years, and the billionaire investor vowed to fight the ruling at the European Court of Human Rights. The Court of Cassation upheld the 75-year-old American financier's conviction for buying and selling Societe Generale shares in 1988 after receiving information about a planned corporate raid on the bank. Apart from this case, Soros' record is unblemished after five decades in finance. Lawyer Ron Soffer said Soros planned to take the case to the European Court of Human Rights, saying that the...
  • The universe before it began

    05/24/2006 3:59:24 PM PDT · by LibWhacker · 125 replies · 3,036+ views
    Seed Magazine ^ | 5/22/06 | Maggie Wittlin
    Scientists use quantum gravity to describe the universe before the Big Bang.Scientists may finally have an answer to a "big" question: If the Big Bang was the beginning of the universe, what could have caused it to happen? Using a theory called "loop quantum gravity," a group led by Penn State professor Abhay Ashtekar has shown that just before the Big Bang occurred, another universe very similar to ours may have been contracting. According to the group's findings, this previous universe eventually became so dense that a normally negligible repulsive component of the gravitational force overpowered the attractive component, causing...
  • Prime Numbers Get Hitched

    04/11/2006 3:08:56 PM PDT · by LibWhacker · 173 replies · 3,850+ views
    Seed Magazine ^ | Feb/Mar 2006 | Marcus du Sautoy
    In their search for patterns, mathematicians have uncovered unlikely connections between prime numbers and quantum physics. Will the subatomic world help reveal the elusive nature of the primes?In 1972, the physicist Freeman Dyson wrote an article called "Missed Opportunities." In it, he describes how relativity could have been discovered many years before Einstein announced his findings if mathematicians in places like Göttingen had spoken to physicists who were poring over Maxwell's equations describing electromagnetism. The ingredients were there in 1865 to make the breakthrough—only announced by Einstein some 40 years later. It is striking that Dyson should have written about...
  • Quantum computer works best switched off

    02/23/2006 3:58:12 AM PST · by S0122017 · 114 replies · 2,602+ views
    NewScientist ^ | 22 February 2006
    Quantum computer works best switched off Even for the crazy world of quantum mechanics, this one is twisted. A quantum computer program has produced an answer without actually running. The idea behind the feat, first proposed in 1998, is to put a quantum computer into a “superposition”, a state in which it is both running and not running. It is as if you asked Schrödinger's cat to hit "Run". With the right set-up, the theory suggested, the computer would sometimes get an answer out of the computer even though the program did not run. And now researchers from the University...
  • Is Consciousness Quantum?

    02/12/2006 9:37:11 PM PST · by TBP · 44 replies · 505+ views
    I AM Spirit ^ | February 14, 2006 | Tim Phares, RScP
    "Consciousness is the singular for which there is no plural," wrote the scientist Erwin Schroedinger. Schroedinger, famous for his theoretical disappearing cat, was one of the pioneers of quantum science. Lately, I've been contemplating the idea, if I understand it correctly (I am emphatically NOT a scientist), that things in a quantum Universe are essentially wavicles -- potentially, at least, in several places at once, achieving locality only when observed. Only when we focus on them do they show up in a specific place called here. The essential principle is that there is an observer consciousness that is the overriding...
  • Woman is Found Dead in Box( Waco, TX Hmmmm )

    12/16/2005 12:33:39 PM PST · by devane617 · 26 replies · 1,397+ views
    KXXV-TV Waco, TX ^ | 12/16/2005 | KXXV TV
    Woman is Found Dead in Box — (12/15/2005) It was a tragic discovery Wednesday morning in Waco. The owner of Brake and Clutch Supply Store at 407 South 8th Street found the body of 45 year old Jackie Berkley of College Station. The businessman was picking up trash when he found Berkley in a large box on the front parking lot. She was pronounced dead at the scene. It’s believed she died from natural causes. But an autopsy was ordered, and for now police are calling it a questionable death.
  • Fuel's paradise? Power source that turns physics on its head

    11/05/2005 8:12:38 AM PST · by nsmart · 55 replies · 1,773+ views
    The Guardian ^ | Friday November 4, 2005 | Alok Jha, science correspondent
    · Scientist says device disproves quantum theory · Opponents claim idea is result of wrong maths It seems too good to be true: a new source of near-limitless power that costs virtually nothing, uses tiny amounts of water as its fuel and produces next to no waste. If that does not sound radical enough, how about this: the principle behind the source turns modern physics on its head. Randell Mills, a Harvard University medic who also studied electrical engineering at Massachusetts Institute of Technology, claims to have built a prototype power source that generates up to 1,000 times more heat...
  • Fuel's paradise? Power source that turns physics on its head

    11/07/2005 10:19:55 AM PST · by Scythian · 46 replies · 2,182+ views
    The Guardian ^ | Friday November 4, 2005 | Alok Jha, science correspondent
    It seems too good to be true: a new source of near-limitless power that costs virtually nothing, uses tiny amounts of water as its fuel and produces next to no waste. If that does not sound radical enough, how about this: the principle behind the source turns modern physics on its head.,3605,1627424,00.html
  • Fuel's paradise? Power source that turns physics on its head

    11/04/2005 5:06:51 PM PST · by Anthem · 176 replies · 4,548+ views
    The Guardian ^ | Friday November 4, 2005 | Alok Jha, science correspondent
    · Scientist says device disproves quantum theory · Opponents claim idea is result of wrong maths It seems too good to be true: a new source of near-limitless power that costs virtually nothing, uses tiny amounts of water as its fuel and produces next to no waste. If that does not sound radical enough, how about this: the principle behind the source turns modern physics on its head. Randell Mills, a Harvard University medic who also studied electrical engineering at Massachusetts Institute of Technology, claims to have built a prototype power source that generates up to 1,000 times more heat...
  • Hitachi Claims Quantum-Computing Breakthrough

    09/02/2005 11:55:36 AM PDT · by ImaGraftedBranch · 62 replies · 2,494+ views
    EE Times ^ | 9/1/2005 | Peter Clarke
    The experiment, done at the company's Cambridge, England, labs, is a step toward developing a new generation of highly powerful processors. By Peter Clarke,  EE Times Sept. 1, 2005 URL: LONDON — A team at Hitachi’s Cambridge Laboratory at the University of Cambridge in England has developed a silicon device for quantum computing: a quantum-dot charge “qubit”. This structure, based on Hitachi's many years of work on single-electron devices, is the first step in the development of a quantum computer based on conventional silicon technology, according to Hitachi Europe Ltd. Quantum computers make use of quantum bits (qubits), which...
  • ANOTHER COOL IDEA FROM TEXAS (Physicists at UT Discovered "quantum refrigerator" to Cool Atoms)

    08/13/2005 2:13:42 PM PDT · by nickcarraway · 10 replies · 346+ views
    U-WIRE | Aug. 10, 2005 | Amanda Pinkston
    Physicists at the University of Texas have discovered the "quantum refrigerator," which might prove to be the next big breakthrough in atom-cooling. No, it can't chill a beer, but this "refrigerator" can drop the temperature of a wide range of atoms and particles to nearly absolute zero – -459 degrees Fahrenheit – allowing scientists to better control the atom's motion. The current atom-cooling techniques are laser cooling, which was realized experimentally in the 1980s and resulted in a Nobel Prize in 1997, and evaporative cooling, which resulted in a Nobel Prize in 2001. The methods are limited, however, because they...
  • No paradox for time travellers

    06/20/2005 9:35:37 AM PDT · by LibWhacker · 72 replies · 1,754+ views
    New Scientist ^ | 6/18/05 | Mark Buchanan
    THE laws of physics seem to permit time travel, and with it, paradoxical situations such as the possibility that people could go back in time to prevent their own birth. But it turns out that such paradoxes may be ruled out by the weirdness inherent in laws of quantum physics. Some solutions to the equations of Einstein's general theory of relativity lead to situations in which space-time curves back on itself, theoretically allowing travellers to loop back in time and meet younger versions of themselves. Because such time travel sets up paradoxes, many researchers suspect that some physical constraints must...
  • New model 'permits time travel'

    06/17/2005 12:06:22 PM PDT · by LibWhacker · 177 replies · 3,318+ views
    BBC ^ | 6/17/05 | Julianna Kettlewell
    If you went back in time and met your teenage parents, you could not split them up and prevent your birth - even if you wanted to, a new quantum model has stated.Researchers speculate that time travel can occur within a kind of feedback loop where backwards movement is possible, but only in a way that is "complementary" to the present. In other words, you can pop back in time and have a look around, but you cannot do anything that will alter the present you left behind. The new model, which uses the laws of quantum mechanics, gets...
  • Is God Quantum?

    04/18/2005 9:59:14 PM PDT · by TBP · 16 replies · 312+ views
    April 18, 2005 | TBP
    The most interesting book I have read lately is "The Self-Aware Universe: How Consciousness Creates the Material World" by Dr. Amit Goswami Ph.D. This is one of my favorite books. It discusses quantum physics, philosophy, cosmology, psychology, and several other interesting issues. Well, I've been contemplating the idea, if I understand it correctly (I am emphatically NOT a scientist), that things in a quantum Universe are essentially wavicles -- part wave, part particle -- potentially, at least, in several places at once, achieving locality only when observed. Only when we focus on them do they show up in a specific...
  • An Interesting Read

    01/15/2005 2:49:04 PM PST · by TBP · 1 replies · 286+ views
    TBP | Right now! | TBP
    I got an extermely interesting book from my wife for Christmas. It's called The Self-Aware Universe: How Consciousness Creates the Material World by Amit Goswami, Ph.D. The book combines quantum science, traditional mathematics, philosophy, psychology, and spirituality in a lively discussion of a scientific, monistic cosmology. A very interesting book for anyone interested in ideas. I recommend it highly.
  • George Soros, Media Connections - Bump List

    01/14/2005 6:54:26 AM PST · by Calpernia · 100 replies · 9,859+ views
    various ^ | January 14, 2005 | various
    Bump List for George Soros.
  • Quantum teleportation useless to teleport humans

    01/07/2005 12:53:56 PM PST · by Red Badger · 18 replies · 525+ views
    PRAVDA - Russia ^ | 1-6-2005 | Dimitry Sudakov
    The quantum teleportation, however, will be used in new type of superpowerful computers Teleportation is an instant transportation of an object from one place to another. Needless to say that science fiction writers have been using this phenomenon in their works for many years. It was generally believed that teleportation was impossible, for it contradicted to all scientific laws imaginable. Teleportation, however, came into real life in 2004. There is another description of the phenomenon, when an object disintegrates in one place, while its physical properties and characteristics are recreated somewhere else. Scientists from all over the world have been...
  • Twisting The Light Away [Twisted Light]

    11/29/2004 4:39:07 PM PST · by LibWhacker · 52 replies · 3,153+ views
    New Scientist | June 12, 2004 | Stephen Battersby
    Twisting The Light Away New Scientist vol 182 issue 2451 12 June 2004, page 36 A novel trick with light has got physicists in a spin. Pitch your photon like a corkscrewing curveball and you can push bandwidth through the roof, flummox eavesdroppers and perhaps even talk to aliens. Stephen Battersby investigates IT DOESN'T look like much, just a plain box about half a metre long. Nonetheless, this is the prototype of something with seemingly magical properties. Fire a beam of its laser light at the dust sitting on your tabletop and the dust motes will begin to dance around...
  • Anyone seen "What the Bleep Do We Know"?

    11/28/2004 9:27:58 PM PST · by TBP · 13 replies · 819+ views
    November 29, 2004 | TBP
    I'd love to hear your comments on the movie "What the Bleep Do We Know." I thought it was the most impressive movie I have seen in a very long time. Has anyone seen it? "What the Bleep" is a movie that deals with quantumm science, the power of thought to shape our experience, the scientific basis for the power of thought. It ries to explain the nature of reality, both scientifically and theoretically. It is about "how the quantum world invites spiritual and mystical interpretations of reality." "What the Bleep Do We Know!?" talks about the science of possibilities...
  • Possible Quantum Stumbling Block Found For Nanotechnologies

    07/11/2004 6:29:42 PM PDT · by LibWhacker · 36 replies · 1,400+ views
    AZoNano ^ | 7/11/04
    The rage to exploit all things quantum may have hit a snag. Quantum nanorods, atomic structures that have been heralded as the key to everything from super-efficient solar cells to an elusive white laser, appear to have an inherent surface charge that may tarnish their gleaming image, according to a report by University of Rochester scientists in a recent issue of Physical Review Letters. “This is not a positive nano-tech revelation,” says Todd Krauss, assistant professor of chemistry and principal author of the research. “We’ve found that while perfect nanorods have all this wonderful potential, in reality the current manufacturing...
  • Teleportation breaks new ground

    06/17/2004 11:59:00 AM PDT · by ckilmer · 20 replies · 273+ views
    PhysicsWeb ^ | 16 June 2004 | Belle Dumé
    Teleportation breaks new ground 16 June 2004 Physicists in Austria and the US have independently demonstrated quantum teleportation with atoms for the first time. Until now, teleportation had only ever been observed with photons. The results could represent a major step towards building a large-scale quantum computer. In quantum teleportation, the sender, normally called Alice, instantaneously transfers information about the quantum state of a particle to a receiver called Bob. The uncertainty principle means that Alice cannot know the exact state of her particle. However, another feature of quantum mechanics called "entanglement" means that she can teleport the state to...
  • Evicting Einstein

    03/26/2004 8:29:25 PM PST · by LibWhacker · 24 replies · 365+ views
    NASA ^ | 3/26/04 | Patrick L. Barry
    Evicting Einstein A physics experiment on the drawing board for the International Space Station could help find the grand unifying "Theory of Everything." Listen to this story via streaming audio, a downloadable file, or get help.March 26, 2004:  Sooner or later, the reign of Einstein, like the reign of Newton before him, will come to an end. An upheaval in the world of physics that will overthrow our notions of basic reality is inevitable, most scientists believe, and currently a horse race is underway between a handful of theories competing to be the successor to the throne.In the running...
  • Decryption and Quantum Computing:Seven Qubits and Counting

    02/19/2004 1:48:48 PM PST · by vannrox · 9 replies · 257+ views
    Alternate View Column AV-112 ^ | 12/19/2001 | by John G. Cramer
    A completely new kind of computer is rising on the technology horizon, and it has just reached a significant milestone.  A quantum computer, a device first suggested decades ago by Richard Feynman and others, has been constructed by Isaac Chuang and his coworkers at IBM?s Almaden Research Center in California.  The prototype quantum computer uses entangled nuclear spins for storage and has a capacity of seven ?qubits?, a term that will be discussed below.  Using a quantum-computing algorithm developed by AT&T's Peter Schor in 1995, this quantum computer has factored the number 15 into its prime- factors, 3 and...
  • The Travels of An Exciton [First images of exciting particle]

    10/28/2003 2:00:47 PM PST · by Russian Sage · 14 replies · 135+ views
    Focus Physical Review ^ | 22 October 2003 | Kim Krieger
    Phys. Rev. Lett. 91, 177401 (issue of 24 October 2003)   22 October 2003 Title and Authors The Travels of An Exciton   K. Matsuda/Kanagawa Acad. of Science and Tech. Trapped and tracked. The first images of the motion of an exciton--a particle essential to modern electronics--and a biexciton show that the lighter exciton (top) roams farther. Researchers have tracked their first exciton. A team reports in the 24 October PRL that they imaged the wave-like motion of the particle, which is essential to the operation of lasers in CD players and grocery scanners. They detected the light of a single...
  • Molecules of life come in waves

    09/06/2003 10:24:14 AM PDT · by AndrewC · 20 replies · 1,040+ views
    Nature Science Update ^ | 5 September 2003 | PHILIP BALL
    Molecules of life come in wavesCompounds found in cells show quantum behaviour.5 September 2003PHILIP BALL A wave-like particle can pass through both slots in a barrier. © SPL Physicists have watched biological molecules become waves in a dramatic demonstration of the effects of quantum mechanics1.It's not clear that biological molecules act like quantum waves in this way as they go about their business in living cells. However, physicist Roger Penrose of the University of Oxford, UK, and psychologist Stuart Hameroff of the University of Arizona in Tucson have proposed that consciousness might arise from wave-like quantum-mechanical effects involving protein...
  • Amateur mathematician's time theories published at last

    07/31/2003 1:01:59 AM PDT · by JerseyHighlander · 88 replies · 1,078+ views
    New Zealand Herald ^ | 31.07.2003 11.04 am | NZPA
    Amateur mathematician's time theories published at last 31.07.2003 11.04 am University drop-out Peter Lynds, 27, of Wellington says he has further plans for mathematical and philosophical explorations after publication of his theories on the nature of time. Mr Lynds, who studied at university for just six months, said his paper, Time and Classical and Quantum Mechanics: Indeterminacy vs Discontinuity, was being published in the August issue of a Dutch-based journal, Foundations of Physics Letters. The journal specialises in rapid dissemination of research in theoretical or mathematical physics, or the philosophy of science. Now a broadcasting school tutor, Mr Lynds said...
  • Another weird Physics Question

    07/21/2003 12:28:54 PM PDT · by Monty22 · 38 replies · 885+ views
    JOS/EFR ^ | 07/21/2003 | Monty22
    Well the answer is that the photon travels as a wave and does somehow manage to do what seems quite impossible and go through both slits and interfere with itself. If we cover one slit then we know which one it goes through and indeed the interference patterns vanish. Even more strange is the fact that it we put a detector on one of the slits to tell us whether the photon goes through that slit or the other one then the interference pattern vanishes. The act of observing the electron makes its wave nature collapse into a particle. The...
  • THE THEORY OF ELEMENTARY WAVES A Causal Explanation of Quantum Phenomena

    06/16/2003 1:38:57 AM PDT · by ThePythonicCow · 24 replies · 1,214+ views
    Yankee Robotics, LLC ^ | March 30, 2000 | Lewis E. Little
    "You believe in a dice-playing God and I in perfect laws in the world of things existing as real objects." Albert Einstein Chapter 1 Introduction 1.1 Proem If in the development of a scientific theory an error is made, further errors will necessarily follow. Each new identification generally assumes the correctness of the theory developed up to that point. If the partial theory is incorrect, any extension will operate to perpetuate its errors, and in the process will generate additional and more extensive errors. Unless the initial error is corrected, the consequence is an endless series of errors piled...
  • A chance for soft power in the Balkans

    05/24/2003 7:09:49 PM PDT · by DTA · 3 replies · 431+ views
    Financial Times ^ | 2002-05-23 | George Soros
    George Soros: A chance for soft power in the Balkans By George Soros Published: May 22 2003 20:43 | Last Updated: May 22 2003 20:43      Yet the Balkans are a vital part of Europe. The US has made clear its intention to diminish its involvement in the region, so the European Union must take the lead. In the past, the EU has responded to negative developments; now it must articulate a positive vision.   Fighting in the Balkans has subsided but future peace is far from assured. Kosovo remains unresolved; the union between Serbia and Montenegro is tenuous...
  • Quantum wormholes could (actually) carry people to other stars and even galaxies!

    09/23/2002 9:33:52 AM PDT · by vannrox · 37 replies · 811+ views
    New Scientist ^ | 18:10 23 May 02 | Exclusive from New Scientist Print Edition
    Quantum wormholes could carry people   18:10 23 May 02   Exclusive from New Scientist Print Edition   All around us are tiny doors that lead to the rest of the Universe. Predicted by Einstein's equations, these quantum wormholes offer a faster-than-light short cut to the rest of the cosmos - at least in principle. Now physicists believe they could open these doors wide enough to allow someone to travel through. Quantum wormholes are thought to be much smaller than even protons and electrons, and until now no one has modelled what happens when something passes through one. So Sean Hayward at...
  • Astronomy Picture of the Day 9-17-02

    09/16/2002 10:05:58 PM PDT · by petuniasevan · 22 replies · 310+ views
    NASA ^ | 9-17-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 September 17 A Force from Empty Space: The Casimir Effect Credit & Copyright: Umar Mohideen (U. California at Riverside) Explanation: This tiny ball provides evidence that the universe will expand forever. Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space. The attraction is known as the Casimir Effect, named for...
  • The Weirdness Barrier

    06/23/2002 9:44:18 PM PDT · by gcruse · 21 replies · 216+ views
    The New Scientist ^ | June 20, 2002
      The weirdness barrierWhat keeps us safe from the absurdity of the quantum world? YOU could be in two places at once, according to quantum mechanics. But although it 's theoretically possible, the apparent absurdity of extending this feature of the atomic world up to everyday scales has puzzled physicists for decades, since things like this just don 't happen to large objects such as cats and people. Now researchers have devised an experiment that could finally explain why. Tiny particles such as photons or atoms can readily be put into a quantum superposition -existing in two different states or...
  • Physics bans cloning

    06/05/2002 3:00:32 PM PDT · by vannrox · 1 replies · 365+ views
    Nature ^ | 21 May 2002 | PHILIP BALL
    Attack of the Clones is classically implausible. © Lucasfilm Perfect clones can't exist, say physicists. They're not doing down the hottest topic in biology, merely pointing out that the laws of classical physics forbid making an exact copy of an object, living or inanimate, just as the laws of quantum physics have been known to do for 20 years. Scientists have created replicas of individual quantum particles such as atoms and photons with properties almost identical to those of the original. Last month, a team at the University of Oxford, UK, even showed that they could clone a photon...
  • Scientists Create Crystal M bius Strip

    05/29/2002 3:04:48 PM PDT · by vannrox · 4 replies · 384+ views
    Scientific American ^ | FR Post 5-29-02 | Editorial Staff
    Scientists Create Crystal Möbius Strip A signature of arts and crafts sessions, the Möbius strip--a seemingly endless ribbon with only one side and one edge that can be made from construction paper and sticky tape--has been given a new look. According to a report published today in the journal Nature, scientists have succeeded in growing crystals in the form of Möbius structures. A piece of ribbon or paper can be twisted and turned easily, so a regular Möbius strip itself is no great feat of engineering. Crystals, in contrast, contain an inherently rigid structure. To manufacture their miniature Möbius strips,...
  • Astronomy Picture of the Day 4-30-02

    04/30/2002 1:16:19 PM PDT · by petuniasevan · 10 replies · 346+ views
    NASA ^ | 4-30-02 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 April 30 The Holographic Principle Image Credit & Copyright: E. Winfree, K. Fleischer, A. Barr et al. (Caltech) Explanation: Is this image worth a thousand words? According to the Holographic Principle, the most amount of information you can get from this image is about 3 x 1065 bits for a normal sized computer monitor. The Holographic Principle, yet unproven, states that there is there is a maximum...