Browsing All Posts filed under »Physics«

Photons May Live for 1 Quintillion Years, but Experience it as 3 Years

July 31, 2013

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… The particles that make up light, photons, may live for at least 1 quintillion (1 billion multiplied by 1 billion) years, new research suggests. If photons can die, they could give off particles that travel faster than light. Many particles in nature decay over time. For instance, radioactive atoms are unstable, eventually breaking down […]

Swedish researchers create “an impossible material” by mistake

July 23, 2013

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… Called upsalite in honor of the university where it was discovered, the material features a surface area of 800 square meters per gram. It’s got the highest surface area measured for a synthesized alkali metal carbonate. And in addition, upsalite is filled with empty pores all having a diameter smaller than 10 nanometers. This […]

Scientists Built a Mini Laser Gun That Generates Anti-Matter

June 30, 2013

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Antimatter, created naturally above storm clouds, has now been created by device that uses magnets and tabletop lasers fired at a gold sheet through helium gas. A team of physicists working at the University of Michigan just published a paper about their device in Physical Review Letters. But basically, it’s small enough to sit on […]

Quantum-Tunneling Computers: Answers faster than light?

June 25, 2013

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… Nerval’s Lobster writes “The powerful, reliable combination of transistors and semiconductors in computer processors could give way to systems built on the way electrons misbehave, all of it contained in circuits that warp even the most basic rules of physics. Rather than relying on a predictable flow of electrons that appear to know whether […]

How to fit 1,000TB of data onto a 12cm optical disc

June 24, 2013

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Just before the weekend I read about a new technique which can be used to shoehorn around 1,000TB of data onto a “DVD disc”. This is quite a feat and it was achieved by circumnavigating some laws of physics with a technique which uses two different coloured light beams to selectively cancel each other out […]

Chladni Figures: Amazing Resonance Experiment

June 14, 2013

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Warning: Turn your volume way down during this entire video. The sound that produces the patterns is loud enough to cause permanent hearing damage. … This demonstration is by a prolific YouTube user who goes by the handle brusspup. I’ve been enjoying his amazing visual illusions for a few years – and I’m not the […]

New method can image single molecules and identify its atoms

June 6, 2013

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The ultimate dream of nanotechnology is to be able to manipulate matter atom by atom. To do that, we first need to know what they look like. In what could be a major step in that direction, researchers have developed a method that can determine the shape of a single molecule and identify its constituent […]

First-ever high-resolution images of a molecule as it breaks and reforms chemical bonds

May 31, 2013

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When Felix Fischer of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) set out to develop nanostructures made of graphene using a new, controlled approach to chemical reactions, the first result was a surprise: spectacular images of individual carbon atoms and the bonds between them. “We weren’t thinking about making beautiful images; […]

Scientists transform cement into liquid metal

May 28, 2013

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It’s not the same as turning lead into gold, but scientists at the Illinois-based Argonne National Laboratory and the Japan Synchrotron Radiation Research Institute/SPring-8 have developed a method for turning cement into a liquid metal semiconductor. The process sounds like a mad scientist’s invention. It involves equipment like an aerodynamic levitator and a carbon dioxide […]

“Quantum microscope” peers into the hydrogen atom

May 24, 2013

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The first direct observation of the orbital structure of an excited hydrogen atom has been made by an international team of researchers. The observation was made using a newly developed “quantum microscope”, which uses photoionization microscopy to visualize the structure directly. The team’s demonstration proves that “photoionization microscopy”, which was first proposed more than 30 […]

Learn the Periodic Table of Elements song

May 19, 2013

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Whether you need to brush up on your chemistry, or just love it when someone sets the Periodic Table to music, AsapSCIENCE’s The NEW Periodic Table Song is for you. This rundown of the elements in numerical order is set to Jacques Offenbach’s Infernal Galop, but was otherwise written, produced, and performed by Mitchell Moffit. […]

Stacking 2-D materials produces surprising results

May 17, 2013

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Graphene has dazzled scientists, ever since its discovery more than a decade ago, with its unequalled electronic properties, its strength and its light weight. But one long-sought goal has proved elusive: how to engineer into graphene a property called a band gap, which would be necessary to use the material to make transistors and other […]

Microscopic Flowers Created with Chemistry

May 17, 2013

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They look for all the world like a collection of flowers bursting into life. Yet in fact, these are microscopic crystals grown in a Harvard laboratory. Measuring just microns across, they were created to assemble themselves a molecule at a time. The team say the work, carried out on glass slides, is able to control […]

Quantum camera snaps objects it cannot “see”

May 17, 2013

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A normal digital camera can take snaps of objects not directly visible to its lens, US researchers have shown. The “ghost imaging” technique could help satellites take snapshots through clouds or smoke. Physicists have known for more than a decade that ghost imaging is possible. But, until now, experiments had only imaged the holes in […]

This Subterranean Telescope May Have Just Seen Humanity’s First Cosmic Neutrino

May 16, 2013

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Catching a glimpse of even regular neutrinos – low-energy particles generated in the atmosphere – is difficult enough, but spotting a “cosmic neutrino” left over from the Big Bang has been downright impossible. That is until this cubic kilometer buried under Antartica’s frozen wastes started looking. Known as the IceCube Neutrino Observatory, this $279 million […]

The Higgs Boson and a “New Physics” – “Could Make the Speed of Light Possible”

May 15, 2013

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Scientists hailed CERN’s confirmation of the Higgs Boson in July of 2012, speculating that it could one day make light speed travel possible by “un-massing” objects or allow huge items to be launched into space by “switching off” the Higgs. CERN scientist Albert de Roeck likened it to the discovery of electricity, when he said […]

Antigravity gets first test at Cern’s Alpha experiment

May 12, 2013

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Researchers at Cern in Switzerland have tested a novel way to find out if antimatter is the source of a force termed “antigravity”. Antimatter particles are the “mirror image” of normal matter, but with opposite electric charge. How antimatter responds to gravity remains a mystery, however; it may “fall up” rather than down. Now researchers […]

Russian researchers find more evidence to support notion that lightning is caused by cosmic rays

May 8, 2013

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Russian physicists Alex Gurevich and Anatoly Karashtin claim, in a paper published in the journal Physical Review Letters, they have found more evidence to support their idea that lightning is caused by cosmic rays. The notion was first proposed by Gurevich back in 1992, and has been a source of debate ever since. No one […]

Do-it-yourself invisibility with 3-D printing

May 8, 2013

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Seven years ago, Duke University engineers demonstrated the first working invisibility cloak in complex laboratory experiments. Now it appears creating a simple cloak has become a lot simpler. “I would argue that essentially anyone who can spend a couple thousand dollars on a non-industry grade 3-D printer can literally make a plastic cloak overnight,” said […]

Scientists adroitly manipulate a quantum bit using laser light alone

May 6, 2013

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By using light, researchers at UC Santa Barbara have manipulated the quantum state of a single atomic-sized defect in diamond — the nitrogen-vacancy center — in a method that allows for more unified control than conventional processes. The method is also more versatile, and opens up the possibility of exploring new solid-state quantum systems. “In […]

Government Lab Reveals Quantum Internet Operated Continuously For Over Two Years

May 6, 2013

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  One of the dreams for security experts is the creation of a quantum internet that allows perfectly secure communication based on the powerful laws of quantum mechanics. The basic idea here is that the act of measuring a quantum object, such as a photon, always changes it. So any attempt to eavesdrop on a […]

Video: Scientists make world’s smallest animation with atoms – Telegraph

May 2, 2013

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Researchers used a scanning tunnelling microscope to move thousands of carbon monoxide molecules to make an animated short film depicting a stick boy playing with his pet atom. In the one-minute video, individual molecules are repeatedly rearranged to show a boy dancing, throwing a ball and bouncing on a trampoline. The film, called A Boy […]

Invisible Gravity Waves Detectable with Quantum Mechanics

May 2, 2013

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The existence of gravitational waves, or ripples in space and time, has long been predicted, but the elusive phenomenon has eluded scientists for decades. Now researchers are proposing a new method to detect these cosmic wrinkles that relies on the quantum nature of atoms. Gravitational waves are a consequence of Einstein’s general theory of relativity, […]

Einstein’s gravity theory passes toughest test yet: Bizarre binary star system pushes study of relativity to new limits

April 26, 2013

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A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before. Once […]

“Quantum internet”: Towards realization of solid-state quantum network

April 25, 2013

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Researchers at TU Delft in the Netherlands have managed to bring two electrons, three meters from each other, into a quantum- entangled state. This result marks a major step towards realizing a quantum network that can be used to connect future quantum computers and to send information in a completely secure way by means of […]

Light bursts out of a flying mirror

April 24, 2013

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A dense sheet of electrons accelerated to close to the speed of light can act as a tuneable mirror that can generate bursts of laser-like radiation in the short wavelength range via reflection. A team of physicists from the Max-Planck-Institute of Quantum Optics (MPQ) in Garching, the Ludwig-Maximilians-Universität (LMU) München, the Queens University Belfast (QUB) […]