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Latest Physics Stories

2014-06-16 09:20:53

University of Innsbruck Even computers are error-prone. The slightest disturbances may alter saved information and falsify the results of calculations. To overcome these problems, computers use specific routines to continuously detect and correct errors. This also holds true for a future quantum computer, which will require procedures for error correction as well: "Quantum phenomena are extremely fragile and error-prone. Errors can spread rapidly and severely disturb the computer," says...

2014-06-16 08:22:55

HOUSTON and RIO DE JANEIRO, June 16, 2014 /PRNewswire/ -- OceanGeo B.V., a geophysical company specializing in multicomponent ocean bottom seismic (OBS) acquisition, today announced that it has been awarded a contract by a major European oil & gas company to acquire a substantial 3D ocean bottom seismic survey offshore Republic of Congo. Acquisition is expected to commence in third quarter 2014. Colin Hulme, OceanGeo's Chief Executive Officer, commented, "We are extremely...

2014-06-15 23:01:11

Transparency Market Research added a new report "Laser Processing Market: Global Analysis, Size, Share, Growth, Trends and Forecast 2013 - 2019" to its report store. Browse the full report: http://www.transparencymarketresearch.com/laser-processing-market.html. Albany, New York (PRWEB) June 15, 2014 Ever since the arrival of laser (light amplification by simulated emission of radiation) technology, it has been used for various applications such as spectroscopy, ranging,...

Bullet Group
2014-06-14 03:00:23

ESA Galaxies are not as isolated as they at first glance may seem; on a cosmic scale they congregate in clumps along with dark matter and hot gas. The colorful blob in this new composite image, based on data from several telescopes including ESA's XMM-Newton, is the group of galaxies known as the Bullet Group. Its components appear to be clearly separated, with the hot gas partitioned from the rest of the mass within the group. This is the smallest object ever found to show such an effect,...

Quantum particles
2014-06-14 03:00:41

University of Innsbruck One of the most remarkable consequences of the rules in quantum mechanics is the capability of a quantum particle to penetrate through a potential barrier even though its energy would not allow for the corresponding classical trajectory. This is known as the quantum tunnel effect and manifests itself in a multitude of well-known phenomena. For example, it explains nuclear radioactive decay, fusion reactions in the interior of stars, and electron transport through...

2014-06-13 08:20:42

- Topics to Cover Electric-Assist Turbo for Marine Turbocharged Diesel Engines, Vibration-Testing Results of Direct Drive Compressor on Magnetic Bearings for U.S. Navy Shipboard Use - CERRITOS, Calif., June 13, 2014 /PRNewswire/ -- Calnetix Technologies, a pioneer in high-speed permanent magnetic motor generators, power electronics and magnetic bearings for a variety of applications and industries, announced today that Venky Krishnan, Director of Programs, and Larry Hawkins, Director...

2014-06-12 23:13:58

Engineer and author Dean Walker has done what many other notable scientists, including such greats as Newton and Einstein, were unable to do: mathematically prove the cause of gravity. Walker's latest work, Gravity Fields of Energy, explains why gravity only mimics an attractive force and proves the theory with relatively simple mathematics. Hyde Park, Vermont (PRWEB) June 12, 2014 Walker builds upon the works of Galileo, Newton, Einstein, and most recently the work of Joseph Taylor...

2014-06-12 23:10:31

Superior Magnetics announced a new gemstone and hematite magnetic bracelet for inflammatory pain relief including arthritis, tendonitis and bursitis. Atlanta, Georgia (PRWEB) June 12, 2014 SuperiorMagnetics.com, a magnetic jewelry designer and developer of magnetic pain relief products for Pain Free Living announced a new gemstone magnetic bracelet for pain relief. This new gemstone magnetic bracelet uses the triple strength hematite magnetic beads combined with Imperial Jasper and Yellow...

Improvements in MRIs, Passenger Screening, Other Image-Detection Applications on the Horizon
2014-06-12 03:33:14

Mike Janes - Sandia National Laboratories Researchers at Sandia National Laboratories, along with collaborators from Rice University and the Tokyo Institute of Technology, are developing new terahertz detectors based on carbon nanotubes that could lead to significant improvements in medical imaging, airport passenger screening, food inspection and other applications. A paper in Nano Letters journal, “Carbon Nanotube Terahertz Detector,” debuted in the May 29 edition of the...

Charging Portable Electronics in 10 Minutes
2014-06-12 03:33:28

Sean Nealon - University of California, Riverside Researchers at the University of California, Riverside Bourns College of Engineering have developed a three-dimensional, silicon-decorated, cone-shaped carbon-nanotube cluster architecture for lithium ion battery anodes that could enable charging of portable electronics in 10 minutes, instead of hours. Lithium ion batteries are the rechargeable battery of choice for portable electronic devices and electric vehicles. But, they present...


Latest Physics Reference Libraries

Nuclear Fallout
2013-04-01 10:26:30

Nuclear fallout, or just simply fallout, known also as Black Rain, is the residual radioactive material that is propelled into the upper atmosphere after a nuclear black or a nuclear reaction that is conducted in an unshielded facility. It is so called because it "fall out" of the sky after the explosion and the shock wave have passed. It most commonly refers to the radioactive dust and ash that is created when a nuclear weapon explodes, but such dust can also come from a damaged nuclear...

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

Astrophysics
2014-01-12 00:00:00

Image Caption: NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light-years in diameter and approximately 60 million light-years distant. Credit: NASA/ESA/Wikipedia What is Astrophysics? For much of the modern age the term Astrophysics has been used synonymously with Astronomy. This interchange is so common that many textbooks even offer the two as having the same meaning. However, from a strictly historical perspective there are differences...

Basic Ocean Terms
2013-02-05 12:52:11

Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.