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8,217 articles from NOVEMBER 2011
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WEDNESDAY 30. NOVEMBER, 2011
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23:57
Green Blog: Chants, Boos and Celebrities at a Standoff on Fracking
The usual arguments unfold, but three actors add shot of excitement at the final New York State hearing on controversial gas drilling rules.
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23:57
MUSIC 2.0: Tech advances prompt new fan connections
From Bjork releasing songs as iPad apps to indie bands selling concert tickets directly to fans via cellphone, music world trailblazers are exploiting new technologies to connect with audiences.
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23:56
Astronomers discover new exoplanet similar in size to Earth; Planet Kepler-21b found using space and ground-based observations
The NASA Kepler Mission is designed to survey a portion of our region of the Milky Way Galaxy to discover Earth-size planets in or near the "habitable zone," the region in a planetary system where liquid water can exist, and determine how many of the billions of stars in our galaxy have such planets. It now has another planet to add to its growing list. Researchers have shown that one of the brightest stars in the Kepler star field has a planet with a radius only 1.6 that of Earth's radius and a mass no greater that 10 earth masses, circling its parent star with a 2.8 day period.
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23:46
Ancient Tools Point to Early Human Migration Into Arabia
Find suggests that humans may have pushed eastward out of Africa tens of thousands of years earlier than believed -
23:38
Is This The World's First Space Beer? No.
Has a brewing company finally managed to launch their beverage into space? Well, it depends on your definition of "space" (and how much "space beer" you've had to drink). -
23:25Shorter migrations could explain genetic rift with country counterparts
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23:24
In the Dragonfish's mouth: Next generation of superstars to stir up our galaxy
(PhysOrg.com) -- Three astronomers at the University of Toronto have found the most numerous batch of young, supermassive stars yet observed in our galaxy: hundreds of thousands of stars, including several hundreds of the most massive kind --blue stars dozens of times heavier than our Sun. The light these newborn stars emit is so intense it has pushed out and heated the gas that gave them birth, carving out a glowing hollow shell about a hundred light-years across. -
23:24New research finds a marker used to detect plaque in the brain may help doctors make a more accurate diagnosis between two common types of dementia – Alzheimer's disease and frontotemporal lobar degeneration (FTLD). The study is published in the November 30, 2011, online issue of Neurology, the medical journal of the American Academy of Neurology.
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23:24The cosmos constantly changes. Stars are born, live out their lives, and die - sometimes calmly, sometimes explosively. Galaxies form, grow, and collide dramatically. A new exhibition and website, developed jointly by the Smithsonian Astrophysical Observatory (SAO) and the Smithsonian's National Museum of Natural History, reveal the dynamic and evolving universe through breathtaking photographs and informative captions.
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23:16Warming Arctic may limit prime whelping grounds for harp seals
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23:11Scientists understand that Earth's magnetic field has flipped its polarity many times over the millennia. The answer, from the geologic and fossil records we have from hundreds of past magnetic polarity reversals, seems to be "no."
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23:11The record-breaking drought in Texas that has fueled wildfires, decimated crops and forced cattle sales has also reduced levels of groundwater in much of the state to the lowest levels seen in more than 60 years, according to new national maps.
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23:11A new study shows that radiation can be used to effectively sterilize the light brown apple moth, an invasive pest to the California wine industry, as well as fruit and vegetable growers.
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23:10A peculiar cosmic explosion first detected by NASA's Swift observatory on Christmas Day 2010 was caused either by a novel type of supernova located billions of light-years away or an unusual collision much closer to home, within our own galaxy.
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23:10A series of new archaeological discoveries in the Sultanate of Oman, nestled in the southeastern corner of the Arabian Peninsula, reveals the timing and identity of one of the first modern human groups to migrate out of Africa, according to new research.
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23:08Friends who went out on a Thanksgiving weekend fishing trip have the ultimate shark story to tell.
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23:07
EPA releases plan to regulate ship ballast water (AP)
AP - The U.S. Environmental Protection Agency has released a proposal to strengthen regulation of ballast water discharged by commercial ships, a leading pathway for invasive species to reach U.S. waters. -
23:02HealthDay - WEDNESDAY, Nov. 30 (HealthDay News) -- Preliminary research suggests that a drug typically used to kickstart the immune system may help cancer patients who receive stem cell transplants and then develop a potentially deadly side effect.
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22:55
Technologies designed to control climate change by actively altering natural processes such as the Earth's absorption of solar energy are generating a heated debate among scientists, environmentalists and policy makers.
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22:54AP - An environmental group on Wednesday accused the U.S. Bureau of Land Management of neglecting science in favor of politics while the agency conducts six ecological studies covering millions of acres and a variety of landscapes across the West.
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22:45Abridged telomeres track with decline in fitness
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22:38
Three hackers say they have broken the security on the BlackBerry PlayBook tablet, allowing them to run unauthorized applications and control hardware components that users can't normally access.
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22:15As the Arctic warms, greenhouse gases will be released from thawing permafrost faster and at significantly higher levels than previous estimates, according to new results. Permafrost thaw will release approximately the same amount of carbon as deforestation. However, the effect of thawing permafrost on climate will be 2.5 times greater because emissions include methane, a more powerful greenhouse gas than carbon dioxide.
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22:15Researchers outline the first practical demonstration of carbon nanotube transistor based printed circuits for display backplane applications revealing CNT's viable candidacy as a competing technology alongside amorphous silicon and metal oxide semiconductor solution as a low-cost and scalable backplane option.
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22:15New research finds a marker used to detect plaque in the brain may help doctors make a more accurate diagnosis between two common types of dementia -- Alzheimer's disease and frontotemporal lobar degeneration. The study is published in the Nov. 30, 2011, online issue of Neurology, the medical journal of the American Academy of Neurology.
Naposledy aktualizované zdroje
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BBC Science/Nature (dnes, 03:47)
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National Geographic News (dnes, 00:48)
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Sci-Tech Today (24. 5, 23:45)
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Guardian Unlimited Science (24. 5, 22:00)
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EurekAlert (24. 5, 06:00)
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TIME (23. 5, 08:40)
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NASA (18. 5, 07:24)
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Technology Review Feed - Tech Review Top Stories (16. 1, 22:07)
