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Roald HoffmannWhen he was a graduate student at Harvard, Roald Hoffmann was the only person in his year focusing on the demanding field of chemical physics.
Topix.net | 21-May-2012 10:10
Welcome to the MultiverseThe latest developments in cosmology point...
"What really interests me is whether God had any choice in creating the world." That's how Albert Einstein, in his characteristically poetic way, asked whether our universe is the only possible universe.
Topix.net | 21-May-2012 05:56
Ion trap in a semiconductor chip
The electromagnetic manipulation of isolated atoms has led to many advances in physics, from laser cooling1 and Bose-Einstein condensation of cold gases2 to the precise quantum control of individual atomic ions3.
Topix.net | 21-May-2012 02:46
Coordination geometry around copper in a Schiff-base trinuclear...
365, No. 1. , 012033, doi:10.1088/1742-6596/365/1/012033 In the present investigation, we have studied extended X-ray absorption fine structure spectra of a trinuclear Schiff-base copper complex tetraaqua-di-I1 43- -tricopper heptahydrate, [Cu 3 2 4 ]. 7H 2 O, in which three metal sites are present.
Topix.net | 20-May-2012 22:32
The future of physics and computing explored
To be held in New York City at New York University's Jack H. Skirball Center for the Performing Arts and the Helen and Martin Kimmel Center , the 19th International Conference on Computing in High Energy and Nuclear Physics will be held during May 21- 25, 2012, hosted by the U.S. Department of Energy's Brookhaven National Laboratory and New York ... (more)
Topix.net | 20-May-2012 18:27
19-year-old Egyptian girl invents spacecraft propulsion device
A 19-year-old Egyptian university student called Aisha Mustafa has invented a propulsion device intended to offer spacecrafts a new method and cheaper means of energy consumption.
Topix.net | 20-May-2012 15:12
Science Notes / Ornithology, physics
Cool dance moves and a sweet tune have always been a good way to impress the ladies.
Topix.net | 20-May-2012 14:07
Pace Academy Chooses Valedictorian, Salutatorian
Michael Christianson - Valedictorian A student atA PaceA since the fifth grade, Michael plans to study physics at Columbia University in the fall.
Topix.net | 20-May-2012 13:02
Swerving and Centering
Here in Seattle we have had a week of lovely early summer weather. It was warm enough to sit under my magnificent 40 year old lilac trees at six in the morning, drink tea and read.
Topix.net | 20-May-2012 08:53
The Merli-Missiroli-Pozzi Two-Slit Electron-Interference Experiment
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Topix.net | 20-May-2012 04:43
Mistaken Identity and Mirror Images: Albert and Carl Einstein, Leiden ...
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Topix.net | 20-May-2012 00:39
Take precautions when viewing partial eclipse
People in Western Canada will be treated to a rare celestial event on Sunday, but it comes with a serious warning.
Topix.net | 19-May-2012 20:39
Fed up with Imperial | Jon Butterworth | Life & Physics
Geoffrey Howe is right. Get rid of it in time for the Olympics. Stop weighing babies in currency.
Topix.net | 19-May-2012 16:29
Dr. Mendel Sachs, retired UB physics professor
Dr. Mendel Sachs, a retired physics professor at the University at Buffalo, died May 5 at his home in Williamsville.
Topix.net | 19-May-2012 13:20
Self-Powered Bionic Eye to Restore Eyesight
For the over-55 crowd, the risk of vision loss goes up. A new self-powered bionic eye being developed by a team of opthalmologists and physicists could help restore eyesight to older adults with severely limited eyesight.
Topix.net | 19-May-2012 10:05
The - Dali Lama' of Kinkora high
Kinkora Regional High School teacher Brendan Kelly uses a piece of wood and stapler to demonstrate physics in motion to a student.
Topix.net | 19-May-2012 06:00
Attraction or repulsion? New method predicts interaction energy of large molecules
Krzysztof Szalewicz, professor of physics and astronomy at the University of Delaware, and Rafal Podeszwa of the University of Silesia Institute of Chemistry in Poland have developed and validated a more accurate method for predicting the interaction energy of large molecules, such as biomolecules used to develop new drugs.
Topix.net | 19-May-2012 01:46
Energy Secretary Reviews Avengers on Facebook, Sees Promise of Green Energy in Hollywood Movie
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Topix.net | 18-May-2012 23:46
Electricity without losses
Wind parks in the North Sea, plans for enormous solar power plants in North Africa: whilst the technologies for alternative power production are making huge strides, the question of efficient energy transportation still remains a major challenge.
Topix.net | 18-May-2012 19:42
Quantum computing: The light at the end of the tunnel may be a single photon
Quantum physics promises faster and more powerful computers, but quantum versions of basic logic functions are still needed to bring this technology to fruition. Researchers from the University of Cambridge and Toshiba Research Europe Ltd. have taken one step toward this goal by creating an all-semiconductor quantum logic gate, a controlled-NOT (CNOT) gate. They achieved this breakthrough by coaxing nanodots to emit single photons of light on demand.
PhysicsOrg | 18-May-2012 19:31
Return of the vacuum tube
Vacuum tubes have been retro for decades. They almost completely disappeared from the electronics scene when consumers exchanged their old cathode ray tube monitors for flat screen TVs. Their replacement the semiconductor is generally the cheaper, lighter, more efficient, and easier to manufacture of the two technologies. But vacuum tubes are more robust in high-radiation environments such as outer space. And since electrons travel faster in a vacuum than through a semiconductor, vacuum tubes are an intrinsically better medium for electricity.
PhysicsOrg | 18-May-2012 18:36
An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain materials. This is analogous to the spontaneous formation of magnetic fields in iron and other elements via ferromagnetism. Multiferroics (materials exhibiting both ferroelectricity and ferromagnetism) have attracted increased interest of late due to their potential use in various technologies, such as improved electronic memory chips and highly sensitive magnetic field sensors. The crystalline material lutetium-iron-oxide (LuFe2O4) has, in turn, garnered much attention due to its purported multiferroic properties.
PhysicsOrg | 18-May-2012 17:00
Infrared vision could help the blind to see
Wireless retinal implant could allow for higher-resolution vision
physicsweb.org | 18-May-2012 16:16
Measuring transient x-rays with lobster eyes
(Phys.org) -- A technology that mimics the structure of a lobster's eyes is now being applied to a new instrument that could help revolutionize X-ray astronomy and keep astronauts safe on the International Space Station.
PhysicsOrg | 18-May-2012 16:00
Iron-based superconductors exhibit s-wave symmetry
(Phys.org) -- Condensed-matter physicists the world over are in hot pursuit of a comprehensive understanding of high-temperature superconductivity, not just for its technological benefits but for the clues it holds to strongly correlated electron systems.
PhysicsOrg | 18-May-2012 15:36
Higgs spotted in Bristol
The retired Edinburgh University particle theorist, after whom the famous boson is named, has been in Bristol for the last two days undertaking a series of public engagements.
Topix.net | 18-May-2012 15:27
After 50 year search, research team finds plutonium signature
(Phys.org) -- After fifty years of trying by various researchers, a group made up of teams from Los Alamos National Libratory in the US and the Atomic Energy Agency in Japan, have succeeded in spotting the signature of plutonium-239 with magnetic resonance (NMR) spectroscopy. Using a super cooled sample of plutonium(IV) oxide, the team as they describe in their paper published in the journal Science, was able to stabilize magnetic interference to find the elusive signature.
PhysicsOrg | 18-May-2012 15:20
Research team devises a means for measuring quantum tunneling time
(Phys.org) -- In a bit of inspired research, a diverse team of researchers has devised a means for measuring the time it takes for an electron to tunnel through a barrier. Led by Israel's Weizmann Institute of Science, Dror Shafir, the team as they describe in their paper published in the journal Nature used one laser to lower a barrier allowing an electron to escape via tunneling from its Helium atom, and another to prod it back again and in the process were able to measure the time it took to do so.
PhysicsOrg | 18-May-2012 14:15
Every black hole contains a new universe: A physicist presents a solution to present-day cosmic mysteries
Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. It's a theory that has been explored over the past few decades by a small group of physicists including myself.
PhysicsOrg | 18-May-2012 12:24
Quantum computer leap
(Phys.org) -- The main technical difficulty in building a quantum computer could soon be the thing that makes it possible to build one, according to new research from The Australian National University.
PhysicsOrg | 18-May-2012 12:24
Dancing droplets reveal physics at work
Throw water into a hot pan, and it will sizzle so fast that the drops actually levitate across the surface.
Topix.net | 18-May-2012 11:18
Spinning up plutonium
After a half century of trying, spectroscopists have finally pinned down the nuclear magnetic resonance spectrum of plutonium-239. The finding will have implications for future studies of the solid-state physics of this important nuclear fuel and might point the way to improved approaches to the long-term storage of nuclear waste as well as the ... (more)
Topix.net | 18-May-2012 07:13
The state of particle physics-a report from Pheno 2012
I spent three days last week at the Phenomenology 2012 Symposium in Pittsburgh, known as Pheno 2012.
Topix.net | 18-May-2012 03:08
In chemical reactions, water adds speed without heat
Led by Manos Mavrikakis, the Paul A. Elfers professor of chemical and biological engineering at the University of Wisconsin-Madison, and Flemming Besenbacher, a professor of physics and astronomy at the University of Aarhus, Denmark, the team published its findings in the May 18 issue of the journal Science .
Topix.net | 17-May-2012 22:59
Inauguration of the SNOLAB International Laboratory for Particle Physics
Newswise - Today, the University of Montreal and its partners are launching SNOLAB, an underground particle physics laboratory that grew out of a collaboration between the university's researchers and their colleagues at Carleton, Queen's, Alberta and Laurentian.
Topix.net | 17-May-2012 18:45
Levitating drops controlled by fridge magnets
System could be used to model celestial dynamics
physicsweb.org | 17-May-2012 16:34
X-ray laser uncovers secrets of complex oxide material
(Phys.org) -- An international team of researchers has used SLACs Linac Coherent Light Source (LCLS) to discover never-before-seen behavior by electrons in complex materials with extraordinary properties.
PhysicsOrg | 17-May-2012 15:00
MAJORANA, the search for the most elusive neutrino of all
(Phys.org) -- In a cavern almost a mile underground in the Black Hills, an experiment called the MAJORANA DEMONSTRATOR, 40 kilograms of pure germanium crystals enclosed in deep-freeze cryostat modules, will soon set out to answer one of the most persistent and momentous questions in physics: are neutrinos their own antiparticles? If the answer is yes, it will require rewriting the Standard Model of Particles and Interactions, our basic understanding of the physical world.
PhysicsOrg | 17-May-2012 14:50
Reaching the Limits
A long time ago - back in the '60's probably - I read a short story in one of the Science Fiction magazines of the day that had as its subject the simultaneous peaking of a number of major trend lines.
Topix.net | 17-May-2012 14:39
Two new excited states of the Lambda-b beauty particle observed by LHCb
In beautiful agreement with the Standard Model, two new excited states of the Λb beauty particle have just been observed by the LHCb Collaboration. Similarly to protons and neutrons, Λb is composed of three quarks. In the Λb’s case, these are up, down and… beauty.
PhysicsOrg | 17-May-2012 14:00
300,000 times the strength of the Earth's magnetic field: BLADE's new 14 Tesla magnet
The first researchers to use the new high-field superconducting magnet at Diamond Light Source, the UKs national synchrotron facility, are searching for hidden magnetic states. If found, they will provide important confirmation of a theoretical model which could have important applications in magnetic data storage. Diamonds BLADE beamline is providing them with the tools for the search.
PhysicsOrg | 17-May-2012 13:47
Meeting winner of 2001 Nobel Prize for Physics wows Hudson County...
Editor's note: Hudson County students attending the 2012 Intel International Science & Engineering Fair, which began Sunday, are blogging from Pittsburgh all week.
Topix.net | 17-May-2012 10:40
Physicist convicted of terrorism leaves prison
Adlene Hicheur, the particle physicist convicted of terrorist charges, has been released less than two weeks into his four-year prison sentence, according to his former supervisor.
Topix.net | 17-May-2012 07:30
What Is An Ultrasound?
An ultrasound scan , also referred to as a sonogram , diagnostic sonography , and ultrasonography , is a device that uses high frequency sound waves to create an image of some part of the inside of the body, such as the stomach, liver, heart, tendons, muscles, joints and blood vessels.
Topix.net | 17-May-2012 03:26
Timing quantum tunneling to attosecond precision
It's possible to make real-world depictions of an electron's wavefunctions, even though the math involves imaginary numbers.
Topix.net | 16-May-2012 23:06
UFO Amnesty: Ex-Army Colonel John Alexander Seeks Amnesty For Military Who Witness UFOs [EXCLUSIVE]
John Alexander , Cia Director David Petraeus , Museum Ceo Allan Palmer , National Atomic Testing Museum , National Intelligence Director James Clapper , Secretary Of Defense Leon Panetta , U.k. Ministry Of Defense Ufo , Ufo Amnesty , Ufo Cover-Up , Ufo Disclosure , Ufo Secrecy , Unidentified Flying Objects , If you're in the military and have ever ... (more)
Topix.net | 16-May-2012 19:02