From Information Marketing Blog:
Last month a social media analytics provider named Sysomos released a comprehensive report on Twitter usage. The problem with most analysis on Twitter, though, is that it is limited by the minimal amount of data that Twitter collects. So, to fill the gaps, most reports do things like guessing gender based on real names or pulling data from keywords in people's biographic information. This often yields some questionable results - and the Sysomos report is not immune to this (for example, they find that 65% of Twitter users are under the age of 25, but base this on only the 0.7% of users who actually disclose their age).
Read more ....
A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Sunday, July 19, 2009
Red Sky At Night: Heavens Turn Crimson Over Britain After Russian Volcano Erupts
(Click Image to Enlarge)
Shepherd's delight: A particularly fiery red sky over fields in Leicestershire last night after an eruption at Sarychev Peak in Russia unleashed a colourful mixture of ash and sulphur. When this 'volcanic aerosol' in the stratosphere mixes with the red light of the setting sun, it produces a vivid crimson hue
Shepherd's delight: A particularly fiery red sky over fields in Leicestershire last night after an eruption at Sarychev Peak in Russia unleashed a colourful mixture of ash and sulphur. When this 'volcanic aerosol' in the stratosphere mixes with the red light of the setting sun, it produces a vivid crimson hue
From The Daily Mail:
The night skies over Britain will turn a deep shade of crimson this week as the fallout from a Russian volcano blast hits the UK.
Millions of tonnes of dust, ash and sulphur dioxide were thrown up to 30 miles into the air when Sarychev Peak on Matua Island in the Kuril Archipelago erupted last month.
The blast created what experts call a ‘volcanic aerosol’ - a colourful mixture of ash and sulphur compounds - in the stratosphere.
This scatters an invisible blue glow which, when mixed with the red light of the setting sun, produces a ‘volcanic lavender’, or vivid crimson/violet hue.
Read more ....
Saturday, July 18, 2009
The Genesis Enigma: How DID the Bible describe the evolution Of Life 3,000 Years Before Darwin?
From The Daily Mail:
The revalation came to Professor Andrew Parker during a visit to Rome. He was in the Sistine Chapel, gazing up at Michelangelo's awesome ceiling paintings, when a realisation struck him with dizzying force.
'A Biblical enigma exists that is on the one hand so cryptic it has remained camouflaged for millennia, and on the other so obvious one cannot miss it.'
The enigma is that the order of Creation as described in the Book of Genesis, and so powerfully depicted in the Sistine Chapel by the greatest artist of the Renaissance, has been precisely, eerily confirmed by modern evolutionary science.
Read more ....
Mystery Methane Belched Out By Megacities
Photo: Methane was found at surprisingly high levels in the Los Angeles atmosphere (Image: David Iliff)
From New Scientist:
The Los Angeles metropolitan area belches far more methane into its air than scientists had previously realised. If other megacities are equally profligate, urban methane emissions may represent a surprisingly important source of this potent greenhouse gas.
Atmospheric researchers have long had good estimates of global methane emissions, but less is known about exactly where these emissions come from, particularly in urban areas.
Read more ....
From New Scientist:
The Los Angeles metropolitan area belches far more methane into its air than scientists had previously realised. If other megacities are equally profligate, urban methane emissions may represent a surprisingly important source of this potent greenhouse gas.
Atmospheric researchers have long had good estimates of global methane emissions, but less is known about exactly where these emissions come from, particularly in urban areas.
Read more ....
Ten Things You Didn't Know About The Apollo 11 Moon Landing
Camera Shy: Neil Armstrong's reflection in Buzz Aldrin's visor is one of the few photos of Armstrong on the moon NASA
From The Popsci.com:
This month marks the 40th anniversary of humankind's first steps on the moon. Auspiciously timed is Craig Nelson's new book, Rocket Men--one of the most detailed accounts of the period leading up to the first manned moon mission. Here, we have ten little-known Apollo 11 facts unearthed by Nelson during his research.
Read more ....
The 40th Anniversary of Apollo 11
On July 20, 1969, Buzz Aldrin and Neil Armstrong became the first humans to set foot on the moon. In this image from a panorama of the landing site taken by Aldrin, Armstrong stands at the base of the lunar module.
From Scientific American:
Four decades after mankind's giant leap, a look at the harrowing first lunar landing, the Apollo missions that never flew, and how the historic event looked from the Soviet Union
Read more ....
Solar Cycle Linked To Global Climate
Scientists find link between solar cycle and global climate similar to El Nino/La Nina.
(Credit: NCAR)
(Credit: NCAR)
From Science Daily:
ScienceDaily (July 17, 2009) — Establishing a key link between the solar cycle and global climate, research led by scientists at the National Science Foundation (NSF)-funded National Center for Atmospheric Research (NCAR) in Boulder, Colo., shows that maximum solar activity and its aftermath have impacts on Earth that resemble La Niña and El Niño events in the tropical Pacific Ocean.
The research may pave the way toward predictions of temperature and precipitation patterns at certain times during the approximately 11-year solar cycle.
Read more ....
5 Myths About The Male Body
From Live Science:
From rumors about feet size to sex life, there's a lot of cultural misinformation circulating about men and their physiques. And men themselves offer precious little clarification what with their tendencies toward joshing around and playing things close to the chest. So for the record, here are five classic assumptions about men's bodies that are totally false. -- Robin Nixon
Read more ....
Why Music Moves Us
From Scientific American:
New research explains music's power over human emotions and its benefits to our mental and physical well-being.
As a recreational vocalist, I have spent some of the most moving moments of my life engaged in song. As a college student, my eyes would often well up with tears during my twice-a-week choir rehearsals. I would feel relaxed and at peace yet excited and joyful, and I occasionally experienced a thrill so powerful that it sent shivers down my spine. I also felt connected with fellow musicians in a way I did not with friends who did not sing with me.
Read more ....
New research explains music's power over human emotions and its benefits to our mental and physical well-being.
As a recreational vocalist, I have spent some of the most moving moments of my life engaged in song. As a college student, my eyes would often well up with tears during my twice-a-week choir rehearsals. I would feel relaxed and at peace yet excited and joyful, and I occasionally experienced a thrill so powerful that it sent shivers down my spine. I also felt connected with fellow musicians in a way I did not with friends who did not sing with me.
Read more ....
India Moon Probe 'Malfunctions'
From The BBC:
India's first mission to the Moon has experienced a technical problem, India's space research officials say.
A sensor of the unmanned Chandrayaan-1 spacecraft has "malfunctioned" and steps have been taken to ensure it is able to continue its work, they say.
But the possibility remains that the mission may have to be cut short.
Chandrayaan-1 was launched last October and is regarded as a major step for India as it seeks to keep pace with other space-faring nations in Asia.
Read more ....
India's first mission to the Moon has experienced a technical problem, India's space research officials say.
A sensor of the unmanned Chandrayaan-1 spacecraft has "malfunctioned" and steps have been taken to ensure it is able to continue its work, they say.
But the possibility remains that the mission may have to be cut short.
Chandrayaan-1 was launched last October and is regarded as a major step for India as it seeks to keep pace with other space-faring nations in Asia.
Read more ....
Man And Machine The Real Legacy Of The Moon Race
From Boston.com:
For the millions who watched the grainy television feed from the moon on July 20, 1969, Neil Armstrong’s small step seemed to herald a new era. Arthur C. Clarke had already predicted that the children born during the Apollo missions would one day have their passports stamped on the moon; in the lunar spectacle, we glimpsed a brighter future in which humans would conquer the vastness of space and acknowledge their brotherhood on the pale blue dot of the home planet.
And yet, 40 years on, the Apollo program looks less like the start of a new era and more like an ancient culture that flourished briefly and then vanished, leaving only ruined towers, ritual costumes, and incomprehensible glyphs. In the decades since the last towering Saturn V tore through the night sky, NASA’s astronauts have spent their time on modest missions closer to home. The age of easy space travel that Apollo seemed to promise never materialized. And for all its technological marvels, Apollo bequeathed little to our material culture besides instant orange drink, freeze-dried ice cream, and the statuettes of the MTV video music awards.
Read more ....
For the millions who watched the grainy television feed from the moon on July 20, 1969, Neil Armstrong’s small step seemed to herald a new era. Arthur C. Clarke had already predicted that the children born during the Apollo missions would one day have their passports stamped on the moon; in the lunar spectacle, we glimpsed a brighter future in which humans would conquer the vastness of space and acknowledge their brotherhood on the pale blue dot of the home planet.
And yet, 40 years on, the Apollo program looks less like the start of a new era and more like an ancient culture that flourished briefly and then vanished, leaving only ruined towers, ritual costumes, and incomprehensible glyphs. In the decades since the last towering Saturn V tore through the night sky, NASA’s astronauts have spent their time on modest missions closer to home. The age of easy space travel that Apollo seemed to promise never materialized. And for all its technological marvels, Apollo bequeathed little to our material culture besides instant orange drink, freeze-dried ice cream, and the statuettes of the MTV video music awards.
Read more ....
Inside the New Harry Potter Movie's VFX Tech
From Popular Mechanics:
The sixth Harry Potter movie, Harry Potter and the Half Blood Prince, opens today. Recently, PM's Digital Hollywood spoke with the film's visual-effects supervisor, Tim Burke, and with Tim Alexander of Industrial Light & Magic, about some of the technical effects behind the new wizarding film.
Millennium Bridge
At the beginning of Harry Potter and the Half-Blood Prince—the first Potter film in two years, out today—things are looking pretty grim not just for the boy wizard, but for everyone. Gray storm clouds roll ominously over London as pedestrians, eyes on the sky, hurry across the city's Millennium Bridge. Suddenly, the bridge begins to quake. Cables snapping, the bridge undulates and twists, pulling free of its piers, and crashes violently into the Thames. Voldemort has recently returned from the dead, and he isn't satisfied to wreak havoc only in the wizarding world: His Death Eaters take his campaign of violent mayhem into the Muggle realm by destroying the Millennium Bridge in the film's dramatic opening sequence.
Read more ....
Friday, July 17, 2009
Lunar Orbiter Photographs Apollo Landing Sites
The Apollo 11 landing site, photographed by the Lunar Reconnaissance Orbiter. The scene is 925 feet across. (Credit: NASA)
From CNET News:
Forty years after the Apollo 11 voyage to the moon, NASA released photographs from the new Lunar Reconnaissance Orbiter spacecraft Friday showing five of the six Apollo landing sites. Shadows cast by the Apollo descent stages are clearly visible and in some cases, the moon walkers' paths can be seen in the disturbed dust.
"We were very interested in getting our first peek at the lunar module descent stages just for the thrill - and to see how well the cameras had come into focus," Mark Robinson, principal investigator of the LRO's main camera, said in a statement. "Indeed, the images are fantastic and so is the focus."
Read more ....
Windpower Could Provide 40 Times Earth's Power Needs
Virgin Waters: The Hywind project aims to perfect technology for floating windmills in the deep ocean, opening up new room for wind power to breathe Stephen Toner/Getty Images
From Popsci.com:
A team at Harvard decided to reinvestigate the potential for windpower around the globe, and found their new results to be significantly different than previous studies. According to the new study, we're capable of someday producing 40 times more power via wind than we currently consume overall.
This finding corresponds with recent research suggesting that you can draw more power at higher altitudes. The Harvard study is based around the use of taller 100-meter turbines, as opposed to 50-to-80-meter turbines.
Read more ....
Apollo 11 Hoax: One In Four People Do Not Believe In Moon Landing
20 July, 1969: Apollo 11 astronauts Neil Armstrong and Edwin E."Buzz" Aldrin, Jr erecting the US flag at Tranquility Base during the First Lunar walk Photo: NASA
From The Telegraph:
A quarter of Britons believe the Apollo 11 mission moon landings in 1969 were a hoax.
Eleven of the 1009 people surveyed thought Buzz Lightyear was the first person on the Moon.
The Toy Story film character was named alongside Louis Armstrong. Eight of those taking part thought the late jazz musician made the first moon walk.
Read more ....
Attack Of The Giant Squids
Photo: Marine biologist John Hyde holds a jumbo flying squid,
which have returned to the Californian coast
which have returned to the Californian coast
Terror As Hundreds Of 5ft Long Creatures Of The Deep Invade Californian Coastline -- The Daily Mail
Hundreds of aggressive jumbo flying squid have appeared off the coast of San Diego, attacking divers and washing up dead on beaches.
The 5-foot long sea monsters, which have razor-sharp beaks and toothy tentacles, have been bringing terror to scuba drivers and swimmers on the coast's tourist-packed beaches.
The carnivorous calamari, which can grow up to 100 pounds, came up from the depths last week and swarms of them have pounced on unsuspecting divers.
Read more ....
DNA Not The Same In Every Cell Of Body: Major Genetic Differences Between Blood And Tissue Cells Revealed
New research calls into question one of the most basic assumptions of human genetics: that when it comes to DNA, every cell in the body is essentially identical to every other cell. (Credit: iStockphoto)
From Science Daily:
ScienceDaily (July 16, 2009) — Research by a group of Montreal scientists calls into question one of the most basic assumptions of human genetics: that when it comes to DNA, every cell in the body is essentially identical to every other cell. Their results appear in the July issue of the journal Human Mutation.
This discovery may undercut the rationale behind numerous large-scale genetic studies conducted over the last 15 years, studies which were supposed to isolate the causes of scores of human diseases.
Read more ....
Neanderthals Were Few And Poised For Extinction
From Live Science:
Neanderthals are of course extinct. But there never were very many of them, new research concludes.
In fact, new genetic evidence from the remains of six Neanderthals (Homo neanderthalensis) suggests the population hovered at an average of 1,500 females of reproductive age in Europe between 38,000 and 70,000 years ago, with the maximum estimate of 3,500 such female Neanderthals.
"It seems they never really took off in Eurasia in the way modern humans did later," said study researcher Adrian Briggs of the Max-Planck Institute for Evolutionary Anthropology in Germany.
Read more ....
Neanderthals are of course extinct. But there never were very many of them, new research concludes.
In fact, new genetic evidence from the remains of six Neanderthals (Homo neanderthalensis) suggests the population hovered at an average of 1,500 females of reproductive age in Europe between 38,000 and 70,000 years ago, with the maximum estimate of 3,500 such female Neanderthals.
"It seems they never really took off in Eurasia in the way modern humans did later," said study researcher Adrian Briggs of the Max-Planck Institute for Evolutionary Anthropology in Germany.
Read more ....
New Material Could Cool Electronics 100 Times More Efficiently
From Popsci.com:
Georgia Tech researchers are working on a new novel material for cooling high-powered military radar gear up to 100 times better than current conductive heat-dissipation technology.
Developed in conjunction with Raytheon and DARPA, the material is a composite of copper and diamond, two of the most effective heat-conducting materials. The composite would serve as part of a sandwich of cooling materials called a Thermal Ground Plane, which, combined with a liquid cooling setup, would surround the transmit/receive module in a radar system.
Read more ....
Cave Record Of Britain's Pioneers
From The BBC:
The Cheddar Gorge in Somerset was one of the first sites inhabited by humans when they returned to Britain towards the end of the last Ice Age.
New radiocarbon dates on bones from Gough's Cave show people were living there some 14,700 years ago.
The results confirm the site's great antiquity and suggest human hunters re-colonised Britain at a time of rapid climate warming.
From 24,000 years ago, an ice sheet extended over much of Britain.
Read more ....
The Cheddar Gorge in Somerset was one of the first sites inhabited by humans when they returned to Britain towards the end of the last Ice Age.
New radiocarbon dates on bones from Gough's Cave show people were living there some 14,700 years ago.
The results confirm the site's great antiquity and suggest human hunters re-colonised Britain at a time of rapid climate warming.
From 24,000 years ago, an ice sheet extended over much of Britain.
Read more ....
Subscribe to:
Posts (Atom)