A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Wednesday, September 9, 2009
Humans Aren’t Going to Mars — or Anywhere Else — Without More Money
From Wired Science:
American human space exploration is impossible with NASA’s current budget.
The committee tasked with examining NASA’s role in human space flight delivered that finding today while offering a mix of relatively exciting options if the agency can secure an extra $3 billion per year.
The report, posted to the Office of Science and Technology Policy website, does not chart any new territory, but it’s unusually clear about the scale and nature of NASA’s problems. The committee said what needed to be said in the interest of a reality-based space program.
Read more ....
Quietest Room In The World Opens Its Doors
Dr David Carberry prepares an experiment in the new Bristol University building which is the 'quietest' in the world Photo: SWNS
From The Telegraph:
The world's 'quietest' room opened its doors for the study of nanotechnology in Bristol.
The ''ultra-low vibration suite'', which cost £11million, allows scientists to manipulate atoms and molecules without the interference of environmental vibrations interrupting their work.
There is virtually no air movement inside the cutting edge laboratory, which is anchored to the rock foundation in the basement of the Nanoscience and Quantum Information Centre in Bristol.
Read more ....
Cargo Spaceship Meets The Catcher In The Sky
From The New Scientist:
If the first launch of Japan's new heavy-lifting rocket passes without incident this month, the residents of the International Space Station will soon be taking delivery of food, water, some spanking new laptops, a robot arm and a couple of Earth-observing experiments. Business as usual, you might think, except that the way this particular cargo gets to its destination is subtly different to its predecessors.
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"Quantum Quest" Brings Cassini to the Big Screen (Starring William Shatner as Every Star in the Universe)
From Popular Science:
Harry Kloor may be the world’s most well-rounded nerd. He is the only person to have earned doctorates in physics and chemistry simultaneously, and he has penned episodes of Star Trek: Voyager. And when NASA asked him for help in improving its image with young people, he drew on both of those experiences. The best way to get kids enthused about outer space, Kloor figured, was to hide their medicine in a bucket of popcorn. Next February, Quantum Quest, a star-studded CGI space adventure that pairs animated protons with real footage from NASA spacecraft, hits theaters. “Many of NASA’s scientists were inspired by Star Trek and Star Wars,” he says. “I want to inspire that kind of passion.” We caught up with Kloor to find out why kids will go nuts for quarks.
Read more ....
Tuesday, September 8, 2009
That Late-Night Snack: Worse Than You Think
Eating at irregular times -- the equivalent of the middle of the night for humans, when the body wants to sleep -- influences weight gain, a new study has found. (Credit: iStockphoto/Curt Pickens)
From Science Daily:
ScienceDaily (Sep. 7, 2009) — Eat less, exercise more. Now there is new evidence to support adding another "must" to the weight-loss mantra: eat at the right time of day.
A Northwestern University study has found that eating at irregular times -- the equivalent of the middle of the night for humans, when the body wants to sleep -- influences weight gain. The regulation of energy by the body's circadian rhythms may play a significant role. The study is the first causal evidence linking meal timing and increased weight gain.
Read more ....
Why 09/09/09 Is So Special
In some cultures, the number 9 is special and can carry good or bad omens. These characters from the movie "9," which opens on 09/09/09, flee for their lives from the Fabrication Machine. Credit: Focus Features
From Live Science:
Have special plans this 09/09/09?
Everyone from brides and grooms to movie studio execs are celebrating the upcoming calendrical anomaly in their own way.
In Florida, at least one county clerk's office is offering a one-day wedding special for $99.99. The rarity of this Sept. 9 hasn't been lost on the creators of the iPod, who have moved their traditional Tuesday release day to Wednesday to take advantage of the special date. Focus Features is releasing their new film "9," an animated tale about the apocalypse, on the 9th.
Read more ....
Laser Cooling May Create "Exotic" States of Matter
An infrared picture shows the change in temperature for laser-cooled gas (blue) and a surrounding metal chamber (red and yellow). After a 30-second pulse from a special type of laser beam, the gas cooled by several degrees compared to its container. Picture courtesy Martin Weitz
From National Geographic:
Laser beams are best known as weapons in science fiction and as heating and cutting tools in science fact. But a new study has flip-flopped conventional physics to show lasers in a whole new light.
In a new technique, Martin Weitz and Ulrich Vogl of the University of Bonn in Germany used a laser to bring the temperature of dense rubidium gas far below the normal point at which the gas becomes a solid.
Read more ....
Underwater Laser Pops In Navy Ops
From The BBC:
US military researchers are developing a method for communication that uses lasers to make sound underwater.
The approach focuses laser light to produce bubbles of steam that pop and create tiny, 220-decibel explosions.
Controlling the rate of these explosions could provide a means of communication or even acoustic imaging.
Read more ....
My Comment: The geek in me loves reading reports like this one.
US military researchers are developing a method for communication that uses lasers to make sound underwater.
The approach focuses laser light to produce bubbles of steam that pop and create tiny, 220-decibel explosions.
Controlling the rate of these explosions could provide a means of communication or even acoustic imaging.
Read more ....
My Comment: The geek in me loves reading reports like this one.
The House That Twitters
IBM head of invention Andy Stanford-Clark at his home on the Isle of Wight which he has turned into a hi-tech house using Twitter
From The Telegraph:
A Tudor cottage has been converted into one of the most hi-tech homes in the world after its owner connected it to the internet messaging service Twitter.
Now the house tells its owner when his dinner is ready, if someone is at the door or when a mouse has been caught in a trap.
Dr Andy Stanford-Clark has fitted the grade 1 listed cottage with hundreds of sensors, allowing everything from energy usage to the burglar alarm to be relayed by the blogging website.
Read more ....
Ancient Skeletons Discovered In Georgia Threaten To Overturn The Theory Of Human Evolution
Astonishing discovery: Archaeologists have unearthed six ancient skeletons dating back 1.8 million years in the hills of Georgia
From The Daily Mail:
For generations, scientists have believed Africa was the cradle of mankind.
Now an astonishing discovery suggests the human race may have spent a 'gap year' in Eurasia.
Archaeologists have unearthed six ancient skeletons dating back 1.8 million years in the hills of Georgia which threaten to overturn the theory of human evolution.
Read more ....
Clues To Blast-Related Brain Injury
Photo: Brain blast: Scientists found that people who suffered concussions as the result of a blast had a more diffuse pattern of brain injury (shown in red) than those whose concussions resulted from a blow to the head or an acceleration injury.
Credit: David Moore et al.
From Technology Review:
New research shows that explosions trigger unique damage to brain tissue.
The blasts caused by improvised explosive devices in Iraq and Afghanistan appear to inflict a fundamentally different type of brain damage than do more traditional sources of concussions, such as blunt trauma. The findings point toward new approaches to diagnosing and monitoring these injuries, which have been a huge concern to the military in recent years. The research also begins to resolve a controversy in brain-injury research--whether soldiers who are near an explosion but don't get hit in the head can still suffer a unique type of brain damage.
Read more ....
My Comment: If this report is true, it means that thousands of Iraqi/Afghan veterans may have experienced brain trauma that were never diagnosed .... or .... for those who were diagnosed, it may mean years of treatment and care that was never contemplated just a few years back. This is a very sobering report, and will be followed up by this blog in the future.
Credit: David Moore et al.
From Technology Review:
New research shows that explosions trigger unique damage to brain tissue.
The blasts caused by improvised explosive devices in Iraq and Afghanistan appear to inflict a fundamentally different type of brain damage than do more traditional sources of concussions, such as blunt trauma. The findings point toward new approaches to diagnosing and monitoring these injuries, which have been a huge concern to the military in recent years. The research also begins to resolve a controversy in brain-injury research--whether soldiers who are near an explosion but don't get hit in the head can still suffer a unique type of brain damage.
Read more ....
My Comment: If this report is true, it means that thousands of Iraqi/Afghan veterans may have experienced brain trauma that were never diagnosed .... or .... for those who were diagnosed, it may mean years of treatment and care that was never contemplated just a few years back. This is a very sobering report, and will be followed up by this blog in the future.
The Complicated World of Ancient Humans
From Discover Magazine:
Recent digs show long-distance trade and complex social structures were around for longer than archaeologists thought.
For civilizations in Europe and the Near East, the Bronze and Iron Ages—when metalworking was first developed—have been viewed as times when simple societies struggled through technological upheaval, famine, and sickness. But new findings are revealing surprising social and cultural complexity.
Read more ....
Earth-Sized Planets Are Just Right For Life
Auroras, like this one seen from Alaska, may be a sign that a planet can support life (Image: Joshua Strang, United States Air Force / Wikimedia Commons)
From New Scientist:
THE discovery of extrasolar super-Earths - rocky planets about five to ten times the mass of Earth - has raised hopes that some may harbour life. Perhaps it's a vain hope though, since it now seems that Earth is just the right size to sustain life.
Life is comfortable on Earth in part because of its relatively stable climate and its magnetic field, which deflects cosmic radiation capable of damaging organic molecules as well as producing amazing auroras (see right).
Read more ....
RoboBath: NASA Studies The Cleanest Robot in the World
+ Arctic Outdoor Lab: Scientists use Norway’s far northern Svalbard islands to test gear-sterilization techniques and space-bound rovers such as this prototype.
+ Social Climber: Cliffbot is part of a three-rover team. Two other robots are tethered to the machine to let it access terrain as steep as 85 degrees.
+ Bot Specs: The rover is the size of a toy wagon, weighs nearly 18 pounds and creeps at 6 inches a second on level ground.
From Popular Mechanics:
In the icy north, scientists learn to sanitize their tools before sending out rovers to search for life on other planets.
Read more ....
+ Social Climber: Cliffbot is part of a three-rover team. Two other robots are tethered to the machine to let it access terrain as steep as 85 degrees.
+ Bot Specs: The rover is the size of a toy wagon, weighs nearly 18 pounds and creeps at 6 inches a second on level ground.
From Popular Mechanics:
In the icy north, scientists learn to sanitize their tools before sending out rovers to search for life on other planets.
Read more ....
Asus's New E-Reader Looks More Like a Real, Live Book
From Popular Science:
The company's forthcoming reader sports a dual-screen, two-page layout and (yes) color.
For a lot of people, e-book readers are a long game of "I'll buy it when..." For some, the rest of that sentence is "it has a color screen," and for others it's "it's cheaper." Asus's upcoming Eee Reader (due by the end of this year) delivers on both counts. Oh, and it will have two screens, too.
Read more ....
Half Of Fish Consumed Globally Is Now Raised On Farms, Study Finds
These are moi, or Pacific threadfin, being sorted for market after harvest from an offshore aquaculture cage in Hawaii. (Credit: NOAA)
From Science Daily:
ScienceDaily (Sep. 8, 2009) — Aquaculture, once a fledgling industry, now accounts for 50 percent of the fish consumed globally, according to a new report by an international team of researchers. And while the industry is more efficient than ever, it is also putting a significant strain on marine resources by consuming large amounts of feed made from wild fish harvested from the sea, the authors conclude. Their findings are published in the Sept. 7 online edition of the Proceedings of the National Academy of Sciences (PNAS).
Read more ....
How Much Spit Does A Person Produce?
From Live Science:
Our salivary glands, which are located on the inside of each cheek, at the bottom of the mouth and under the jaw at the front of the mouth, churn out about two to four pints (one to two liters) of spit every day.
The mere mention or aroma hint of chocolate chip cookies can make for a mouth full of drool. That's a good thing. The clear substance, made up mostly of water, mixes in with food to help even the driest snack slide with ease down into your stomach. Before those morsels hit the belly, special enzymes in saliva start to break down that food into its simpler components.
Fatal Fungus Killing Bats At Alarming Rate
Watch CBS Videos Online
From CBS:
Biologist Explains How a Dying Bat Population Results in Damage to Forests and Farms.
CBS) The race is on throughout the northeast. From tagging bats with tiny transmitters to infrared flight analysis and blood testing of their immune systems, researchers are trying to solve one of the most devastating mysteries in the natural world: The huge and rapid die off of the species named little brown bats.
Read more ....
Fragment From World's Oldest Bible Found Hidden In Egyptian Monastery
A page from the earliest surviving Bible, of which another fragment has been discovered in Egypt. PA
From The Independent:
Academic stumbles upon previously unseen section of Codex Sinaiticus dating back to 4th century.
A British-based academic has uncovered a fragment of the world's oldest Bible hiding underneath the binding of an 18th-century book.
Nikolas Sarris spotted a previously unseen section of the Codex Sinaiticus, which dates from about AD350, as he was trawling through photographs of manuscripts in the library of St Catherine's Monastery in Egypt.
Read more ....
My Comment: Bookyards section on Christianity is here, and on the Bible it is here.
From The Independent:
Academic stumbles upon previously unseen section of Codex Sinaiticus dating back to 4th century.
A British-based academic has uncovered a fragment of the world's oldest Bible hiding underneath the binding of an 18th-century book.
Nikolas Sarris spotted a previously unseen section of the Codex Sinaiticus, which dates from about AD350, as he was trawling through photographs of manuscripts in the library of St Catherine's Monastery in Egypt.
Read more ....
My Comment: Bookyards section on Christianity is here, and on the Bible it is here.
Virus Linked To Prostate Tumours
From The BBC:
Scientists have produced compelling evidence that a virus known to cause cancer in animals is linked to prostate cancer in humans.
The researchers from the University of Utah and Columbia University medical schools found the virus in 27% of the 200 cancerous prostates they looked at.
They say it was associated with more aggressive tumours and found in only 6% of non-cancerous prostates.
The finding raises the prospect of one day producing a vaccine.
Previous research has linked XMRV (Xenotropic murine leukaemia virus) to prostate cancer but not in such an aggressive way.
Read more ....
Scientists have produced compelling evidence that a virus known to cause cancer in animals is linked to prostate cancer in humans.
The researchers from the University of Utah and Columbia University medical schools found the virus in 27% of the 200 cancerous prostates they looked at.
They say it was associated with more aggressive tumours and found in only 6% of non-cancerous prostates.
The finding raises the prospect of one day producing a vaccine.
Previous research has linked XMRV (Xenotropic murine leukaemia virus) to prostate cancer but not in such an aggressive way.
Read more ....
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