http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot electrons to increase the cells' power ouput. Although the power increase is small, the concept could lead to solar cells that break conventional efficiency limits. http://www.physorg.com/news180365359.html Nanotechnology Fri, 18 Dec 2009 13:44:26 EST news180365359 Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar power efficiency, the authors report in the current online edition of Applied Physics Letters. http://www.physorg.com/news179739056.html Physics Fri, 11 Dec 2009 07:31:22 EST news179739056 (AP) -- The e-book reading device is the gadget gift of the season. Both Sony and Barnes & Noble have sold out of their new models, and new buyers will have to wait until January for delivery. So why are e-book readers still such clumsy, annoying devices? http://www.physorg.com/news179596042.html Electronics Wed, 09 Dec 2009 15:48:49 EST news179596042 (PhysOrg.com) -- Hawaii may be paradise for vacationers, but for geologists it has long been a puzzle. Plate tectonic theory readily explains the existence of volcanoes at boundaries where plates split apart or collide, but mid-plate volcanoes such as those that built the Hawaiian island chain have been harder to fit into the theory. A classic explanation, proposed nearly 40 years ago, has been that magma is supplied to the volcanoes from upwellings of hot rock, called mantle "plumes," that originate deep in the Earth's mantle. Evidence for these deep structures has been sketchy, however. http://www.physorg.com/news179074389.html Space & Earth Thu, 03 Dec 2009 14:53:40 EST news179074389 (AP) -- Google, Yahoo, eBay and Microsoft, competitors on the Web, all have the same idea for marketing themselves this holiday season: temporarily providing free Wi-Fi access in airports, airplanes and public places. http://www.physorg.com/news177084145.html Technology Tue, 10 Nov 2009 14:40:02 EST news177084145 Carbon is usually typecast as a villain in terms of the environment but researchers at the University of Warwick have devised a novel way to miniaturise a technology that will make carbon a key material in some extremely green heating products for our homes and in air conditioning equipment for our cars. http://www.physorg.com/news177076423.html Technology Tue, 10 Nov 2009 12:10:02 EST news177076423 Though hot tubs, whirlpools and spas are widely used for relaxation and fun, they can pose serious risk for injury. Over the past two decades, as recreational use of hot tubs has increased, so has the number of injuries. A recent study conducted by the Center for Injury Research and Policy of The Research Institute at Nationwide Children's Hospital found that from 1990-2007, the number of unintentional hot tub-related injuries increased by 160 percent, from approximately 2,500 to more than 6,600 injuries per year. http://www.physorg.com/news176449945.html Medicine & Health Tue, 03 Nov 2009 06:10:03 EST news176449945 (AP) -- Grilled chicken replaced the hot dogs. Strawberries instead of cookies at snack time. No more fruit juice - water or low-fat milk only. This is the new menu at a Delaware day care center, part of a fledgling movement to take the fight against obesity to pudgy preschoolers. http://www.physorg.com/news174574721.html Medicine & Health Mon, 12 Oct 2009 13:59:12 EST news174574721 YouTube on Tuesday announced a deal to bring Warner Music Group songs back to the world's most popular online video sharing service. http://www.physorg.com/news173421515.html Technology Tue, 29 Sep 2009 06:10:01 EST news173421515 Gabapentin, a drug initially used to treat seizures, improves sleep quality in menopausal women with hot flashes, University of Rochester Medical Center researchers report online and in the September issue of the Journal of Women's Health. http://www.physorg.com/news171625215.html Medicine & Health Tue, 08 Sep 2009 10:40:41 EST news171625215 University of Utah researchers will inject cool water and pressurized water into a "dry" geothermal well during a five-year, $10.2 million study aimed at boosting the productivity of geothermal power plants and making them feasible nationwide. http://www.physorg.com/news171624024.html Technology Tue, 08 Sep 2009 10:21:10 EST news171624024 Two studies conducted by researchers at the University of Illinois at Chicago and Northwestern University have found that commonly used botanicals do not have an effect on hot flashes or on cognitive function in menopausal women. http://www.physorg.com/news168857939.html Medicine & Health Fri, 07 Aug 2009 10:10:01 EST news168857939 (PhysOrg.com) -- Western Washington is braced for unusually hot weather this week, but University of Washington scientists say this could be one for the record books, with Seattle experiencing historic triple-digit readings. http://www.physorg.com/news168018836.html Space & Earth Tue, 28 Jul 2009 17:10:02 EST news168018836 Mine shafts on the point of being closed down could be used to provide geothermal energy to local towns. This is the conclusion of two engineers from the University of Oviedo, whose research is being published this month in the journal Renewable Energy. The method they have developed makes it possible to estimate the amount of heat that a tunnel could potentially provide. http://www.physorg.com/news167913013.html Technology Mon, 27 Jul 2009 11:50:01 EST news167913013 Round-the-world balloooning pioneer Bertrand Piccard unveiled his solar-powered aircraft in Switzerland on Friday, ready for another trend-setting circumnavigation of the globe powered solely by the sun. http://www.physorg.com/news165236897.html Technology Fri, 26 Jun 2009 12:09:00 EST news165236897 (PhysOrg.com) -- Virtual WiFi will enable Windows 7 and future operating systems to see a single WLAN adapter as multiple WLAN adapters by the operating system. This feature is available in Windows 7 RC1, however because there are no hardware drivers to support this, the feature remains inactive. http://www.physorg.com/news161875105.html Technology Mon, 18 May 2009 14:19:01 EST news161875105 A pill used for nerve pain offers women relief from hot flashes, Mayo Clinic researchers report at the 45th Annual Meeting of the American Society of Clinical Oncology (ASCO). http://www.physorg.com/news161610636.html Medicine & Health Fri, 15 May 2009 12:51:15 EST news161610636 If you tend to forget or neglect to move photo treasures from your digital camera to your computer, an Eye-Fi card should interest you. This clever photo memory card handles that meddlesome task for you -- and now it does the same for video too. http://www.physorg.com/news159647275.html Electronics Wed, 22 Apr 2009 19:28:29 EST news159647275 Acupuncture cannot be shown to have any positive effect on hot flushes during the menopause. This is the conclusion of a systematic review of literature by three groups in Daejon, Busan (South Korea) and Exeter (UK), published in the current edition of the peer-reviewed journal Climacteric. http://www.physorg.com/news158330421.html Medicine & Health Tue, 07 Apr 2009 13:40:36 EST news158330421 People are advised to wait a few minutes before drinking a cup of freshly-boiled tea today as a new study, published on bmj.com, finds that drinking very hot tea (70°C or more) can increase the risk of cancer of the oesophagus, the muscular tube that carries food from the throat to the stomach. http://www.physorg.com/news157315385.html Medicine & Health Thu, 26 Mar 2009 19:44:09 EST news157315385 Dangling a lucrative financial carrot at the end of a professional sport season can cause certain players to exert the effort necessary to put together a string of successful performances, sometimes known in sporting circles as a "hot hand" or "hot streak." http://www.physorg.com/news156523190.html Other Sciences Tue, 17 Mar 2009 15:40:23 EST news156523190 An analysis of the engineering and economics for a solar water-heating system shows it to have a payback period of just two years, according to researchers in India. They report, in the International Journal of Global Energy Issues, on the success of the 1000-liter system operating at a university hostel. http://www.physorg.com/news155814806.html Technology Mon, 09 Mar 2009 10:54:23 EST news155814806 New Rochelle, NY, February 12, 2009 -Data from the Mars Reconnaissance Orbiter (MRO) suggest the discovery of ancient springs in the Vernal Crater, sites where life forms may have evolved on Mars, according to a report in Astrobiology, a peer-reviewed journal published by Mary Ann Liebert. http://www.physorg.com/news153673629.html Space & Earth Thu, 12 Feb 2009 15:07:52 EST news153673629 Phytophthora blight, caused by Phytophthora capsici, is a major plant disease that affects many crop species worldwide, including chile peppers in New Mexico. Farmers' observations suggested that Phytophthora capsici caused less damage in pepper crops of the hot pepper varieties than low-heat pepper varieties. http://www.physorg.com/news152894974.html Biology Tue, 03 Feb 2009 14:50:21 EST news152894974 (PhysOrg.com) -- Inhabitants of Chaco Canyon apparently drank chocolate from cylinders like these about a thousand years ago. That`s the finding in a paper published this week by PNAS, a publication of the National Academy of Science and written by Distinguished Professor of Anthropology Patricia L. Crown and her Collaborator at the Hershey Center of Health and Nutrition W. Jeffrey Hurst. http://www.physorg.com/news152818667.html Other Sciences Mon, 02 Feb 2009 17:38:20 EST news152818667 (PhysOrg.com) -- As computer chips become more powerful, they also become hotter. Nearly all the power that flows into a chip comes out of it as waste heat, and that heat hurts the performance of the chip. http://www.physorg.com/news152801022.html Nanotechnology Mon, 02 Feb 2009 12:44:10 EST news152801022 Omega-3s ease psychological distress and depressive symptoms often suffered by menopausal and perimenopausal women, according to researchers at Université Laval's Faculty of Medicine. Their study, published in the February issue of The American Journal of Clinical Nutrition, presents the first evidence that omega-3 supplements are effective for treating common menopause-related mental health problems. http://www.physorg.com/news152370486.html Medicine & Health Wed, 28 Jan 2009 13:08:24 EST news152370486 Andrei Mitran of Cary says he has no desire to live "off the grid." But when choosing a replacement for his 18-year-old hot water heater, the computer programmer says he decided to look into purchasing a solar unit. http://www.physorg.com/news151783028.html Technology Wed, 21 Jan 2009 17:57:41 EST news151783028 (PhysOrg.com) -- Transiting exoplanets are routinely detected when they pass in front of their parent star as viewed from the Earth, which only happens by chance. The transit event causes a small drop in the observed starlight, which can then be detected. Fifty-five exoplanets have been detected this way since the observation of the first transiting planet HD 209458 b in 1999. http://www.physorg.com/news151168570.html Space & Earth Wed, 14 Jan 2009 15:16:10 EST news151168570 Black holes can now be thought of as donut holes. The shape of material around black holes has been seen for the first time: an analysis of over 200 active galactic nuclei -cores of galaxies powered by disks of hot material feeding a super-massive black hole -shows that all have a consistent, ordered physical structure that seems to be independent of the black hole's size. http://www.physorg.com/news148652427.html Space & Earth Tue, 16 Dec 2008 12:20:27 EST news148652427