A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Thursday, September 24, 2009
Full Moon Does Not Affect Surgery Outcomes
From Live Science:
While a full moon can tug on ocean tides and make for a romantic setting, scientists have found no reliable evidence that it triggers suicides or hospital admissions, or facilitates conception, the transformation of werewolves or any of a host of other phenomena often blamed on it.
Evidence is mounting, however, for things on which the moon has no impact.
Read more ....
Roaches Hold Their Breath To Stay Alive
Cockroaches hold their breath when they need to stop water loss more than they need oxygen
(Source: Philip Matthews )
(Source: Philip Matthews )
From ABC News (Australia):
Australian scientists have discovered another reason why cockroaches might well inherit the earth after humans are long gone.
Animal physiologist Dr Craig White of the University of Queensland in Brisbane and colleagues report their findings in the Journal of Experimental Biology.
"Several decades ago, scientists discovered that some insects hold their breath," says White.
"But it's not been clear why they do this."
Read more ....
NASA Finds Water Ice In Mars Craters
An image by the High Resolution Imaging Science Experiment camera on the NASA's Mars Reconnaissance Orbiter shows Sawtooth Pattern in Carbon Dioxide Ice on Mars recorded during the month of April through early August 2009. The Mars Reconnaissance Orbiter has been studying Mars with an advanced set of instruments since 2006. (University of Arizona/JPL/NASA/Reuters)
From The Christian Science Monitor:
NASA's Mars Reconnaisance Orbiter spotted ice just below the surface that was exposed by fresh meteor crashes, not far from where the Viking 2 Lander looked in 1976.
NASA’s Mars Reconnaissance Orbiter has found water ice much closer to the planet’s equator than scientists believed possible.
And it’s far purer than they expected, suggesting that in the recent past, the planet’s climate was far more humid than models of Mars’s climate history suggested.
Read more ....
The Australian Dust Storm As Seen From Space – Dry lake Eyre Not Global Warming?
From Watts Up With That?
There’s been quite a bit of buzz about the dust storm in Australia that hit Queensland, New South Wales, and NSW city Sydney on September 23rd. Pictures like the ones below have been all over the web.
But it is the photos taken from space that are the most interesting I think. NASA’s Earth Observatory captured a truly amazing photo that shows the dust storm front as it swept across the continent and headed out to sea over eastern Australia where the borders of Queensland and NSW meet.
Read more ....
Quantum Chip Helps Crack Code
From IEEE Spectrum:
Experimental chip does part of code-cracking quantum algorithm.
3 September 2009—Modern cryptography relies on the extreme difficulty computers have in factoring huge numbers, but an algorithm that works only on a quantum computer finds factors easily. Today in Science, researchers at the University of Bristol, in England, report the first factoring using this method—called Shor’s algorithm—on a chip-scale quantum computer, bringing the field a tiny step closer to realizing practical quantum computation and code cracking.
Read more ....
Update: Quantum Computer Factors the Number 15 -- Scheneider Security
Guinness Facts: In Black And White
From The Telegraph:
As millions of people toast the birth of the world's most famous stout, members of the Guinness family will remember how a blessed inheritance to their forefather Arthur changed their fortunes.
– Arthur Guinness set up his first brewery in Leixlip, Co Kildare, in 1756 after he was left a £100 inheritance by his godfather, Archbishop Arthur Price.
– He later handed the business to his brother and, in 1759, signed a 9,000 year lease on the St James's Gate Brewery for an annual fee of £45.
Read more ....
iRex Announces e-Reader with Barnes & Noble Catalog, Verizon 3G
From Popular Science:
With a larger screen and 400,000 more titles, iRex's DR800SG forces a standoff against the Kindle and the Sony Reader.
Barnes and Noble first tipped their hand in July, when they announed their new e-book store and its 700,000 titles would be made available on the iPhone and BlackBerry platforms. Then in August, the bookseller announced a partnership with e-reader maker iRex, in addition to love for Plastic Logic and their devices. And today (drumroll, please) the company officially announced the iRex DR800SG reader, the first e-book reader with access to the Barnes and Noble catalog.
Read more ....
US Dirty Bomb Attack Would Bring Clean-Up Chaos
From New Scientist:
A dirty bomb attack on the US would find the country ill-prepared to clean up the resulting radioactive mess, a government watchdog has warned – and hasty attempts at cleaning up could make things worse.
Building a true nuclear bomb requires expert knowledge and possession of plutonium or enriched uranium, which governments keep under tight security. But more widely available radioactive materials, intended for applications such as medical imaging, could be used to construct a "dirty bomb" detonated a conventional explosives such as dynamite.
Read more ....
A dirty bomb attack on the US would find the country ill-prepared to clean up the resulting radioactive mess, a government watchdog has warned – and hasty attempts at cleaning up could make things worse.
Building a true nuclear bomb requires expert knowledge and possession of plutonium or enriched uranium, which governments keep under tight security. But more widely available radioactive materials, intended for applications such as medical imaging, could be used to construct a "dirty bomb" detonated a conventional explosives such as dynamite.
Read more ....
Mysterious Ruins May Help Explain Mayan Collapse
This is one of the exceptionally well preserved buildings discovered at Kiuic. This building dates to the Late/Terminal Classic (A.D. 800-1000) and is part of the later major royal Palace discovered at the site.By Bolonchen Regional Archaeological Project.
From USA Today:
Ringing two abandoned pyramids are nine palaces "frozen in time" that may help unravel the mystery of the ancient Maya, reports an archaeological team.
Hidden in the hilly jungle, the ancient site of Kiuic (KIE-yuk) was one of dozens of ancient Maya centers abandoned in the Puuc region of Mexico's Yucatan about 10 centuries ago. The latest discoveries from the site may capture the moment of departure.
Read more ....
Voters choose 'Embracing The Hope' Setting For Famed Diamond
From The L.A. Times:
Last month we mentioned that, as a PR stunt for a Smithsonian Channel documentary, you had a chance to vote on which of three Harry Winston settings the famous Hope Diamond should temporarily reside. And, based on the number of comments All The Rage received (and we weren't even the ones tallying the votes), folks had some pretty strong opinions on the topic -- though most of you said you would prefer it remain in its traditional setting (to which it will return by the end of next year).
Read more ....
Genetic Discovery Could Break Wine Industry Bottleneck, Accelerate Grapevine Breeding
From Science Daily:
One of the best known episodes in the 8000-year history of grapevine cultivation led to biological changes that have not been well understood – until now. Through biomolecular detective work, German researchers have uncovered new details about the heredity of Vitis varieties in cultivation today. In the process, they have opened the way to more meaningful classification, accelerated breeding, and more accurate evaluation of the results, potentially breaking a bottleneck in the progress of the wine industry.
Read more ....
One of the best known episodes in the 8000-year history of grapevine cultivation led to biological changes that have not been well understood – until now. Through biomolecular detective work, German researchers have uncovered new details about the heredity of Vitis varieties in cultivation today. In the process, they have opened the way to more meaningful classification, accelerated breeding, and more accurate evaluation of the results, potentially breaking a bottleneck in the progress of the wine industry.
Read more ....
What Seniors Need To Know About The Flu
From Live Science:
Flu season in the northern hemisphere can range from as early as November to as late as May. The peak month usually is February.
However, this coming season is expected to be unpredictable because of the emergence of the H1N1 influenza virus or swine flu. The H1N1 has caused the first global outbreak — pandemic — of influenza in more than four decades.
Read more ....
Flu season in the northern hemisphere can range from as early as November to as late as May. The peak month usually is February.
However, this coming season is expected to be unpredictable because of the emergence of the H1N1 influenza virus or swine flu. The H1N1 has caused the first global outbreak — pandemic — of influenza in more than four decades.
Read more ....
Water Found On The Moon
How So Much Water? Some Ideas...
A stream of charged hydrogen ions carried from the sun by the solar wind. One possible scenario to explain the new finding of water on the lunar surface is that during the daytime, when the moon is exposed to the solar wind, hydrogen ions liberate oxygen from lunar minerals to form OH and H2O, which are then weakly held to the surface. At high temperatures (red-yellow) more molecules are released than adsorbed. University of Maryland/F. Merlin/McREL
A stream of charged hydrogen ions carried from the sun by the solar wind. One possible scenario to explain the new finding of water on the lunar surface is that during the daytime, when the moon is exposed to the solar wind, hydrogen ions liberate oxygen from lunar minerals to form OH and H2O, which are then weakly held to the surface. At high temperatures (red-yellow) more molecules are released than adsorbed. University of Maryland/F. Merlin/McREL
From Discovery News:
Shattering a long-held belief that Earth's moon is a dead and dry world, a trio of spacecraft uncovered clear evidence of water and hydrogen-oxygen molecules throughout the lunar surface.
"There's no question that there is OH [hydroxyl, which is made up of one hydrogen atom and one oxygen atom] and H2O on the moon," University of Maryland senior research scientist Jessica Sunshine told Discovery News.
Read more ....
The Coming Ebook Reader Flood
The Microsoft Courier leads the way in the coming onslaught of ebook readers.
(Screen shot from YouTube)
(Screen shot from YouTube)
From Christian Science Monitor:
The Amazon Kindle ignited an ebook reader industry and created many rivals for itself.
“Kindle” indeed.
Amazon’s popular Kindle ebook reader has sparked some fiery competition. Several companies recently announced plans to produce their own ereader-like device, and signs point to more on the horizon.
Read more ....
Michael Faraday Voted Britain's Greatest Inventor
From The Telegraph:
Michael Faraday, the scientist whose discoveries led to the development of the electric motor, has been hailed as the greatest inventor in British history, a survey revealed today.
Faraday, who is credited with the harnessing of electric power, won a quarter of the vote in the poll of more than 1,200 people.
He was followed by Isambard Kingdom Brunel (13%), who designed the first propeller-driven steamship, and William Caxton (9%) who introduced the printing press to England.
Read more ....
India’s Lunar Mission Finds Evidence Of Water On The Moon
From The Independent:
Dreams of establishing a manned Moon base could become reality within two decades after India’s first lunar mission found evidence of large quantities of water on its surface.
Data from Chandrayaan-1 also suggests that water is still being formed on the Moon. Scientists said the breakthrough — to be announced by Nasa at a press conference today — would change the face of lunar exploration.
Read more ....
Satellite To Begin Gravity Quest
From The BBC:
A European spacecraft will begin its quest this week to make the most detailed global map of the Earth's gravity field.
The arrow-shaped Goce satellite can sense tiny variations in the planet's tug as it sweeps around the world at the very low altitude of just 255km.
The map will help scientists understand better how the oceans move.
It should also give them a universal reference to compare heights anywhere across the globe.
Read more ....
Wasted Space: U.S. Military Looking For Ideas On How To Curb The Threat Of Orbiting Junk
CLOUD OF CLUTTER: A visualization of the population of tracked objects, primarily debris, in low Earth orbit. The objects are not scaled with respect to Earth. NASA
From Scientific American:
DARPA is soliciting pitches on how best to remove orbital debris.
Gazing up into the sky on a clear night, the heavens can appear as pristine as a mountain stream. But in truth, at least in Earth's vicinity, the trash factor in space may be more akin to what is found in New York City's East River. The region known as low Earth orbit (extending from 160 to 2,000 kilometers above Earth's surface), which is where many satellites spend their lives and "afterlives," has a litter problem caused by decades of neglect, and it's one that currently lacks an expedient solution.
Read more ....
Drinking Alcohol May Make Head Injuries Less Harmful
From Popular Science:
Patients with alcohol in their blood are less likely to die from head injuries, according to a new study in Archives of Surgery, a JAMA/Archives journal.
The researchers found that the patients who tested positive for alcohol were less likely to die than patients who had no alcohol in their bloodstream. They were also generally younger and had less severe injuries. But patients who had drunk alcohol did suffer more medical complications during their stay in the hospital.
Read more ....
Asteroid Attack: Putting Earth's Defences To The Test
From The New Scientist:
IT LOOKS inconsequential enough, the faint little spot moving leisurely across the sky. The mountain-top telescope that just detected it is taking it very seriously, though. It is an asteroid, one never seen before. Rapid-survey telescopes discover thousands of asteroids every year, but there's something very particular about this one. The telescope's software decides to wake several human astronomers with a text message they hoped they would never receive. The asteroid is on a collision course with Earth. It is the size of a skyscraper and it's big enough to raze a city to the ground. Oh, and it will be here in three days.
Read more ....
Subscribe to:
Posts (Atom)