A Science News Aggregator That Covers Stories in the World Of Science And Technology.
Monday, August 3, 2009
5 Top Galactic Bodies Anyone Can See (With a Cheap Telescope)
From Popular Mechanics:
Anthony Wesley beat NASA to the punch with help from one of his super powerful hand-modded telescopes when he observed the now famous black dot on Jupiter. But even a casual stargazer can catch some of the universe's five star views with an inexpensive telescope and a curious eye. Here are five celestial beauties you can see even with your $300, 75x zoom telescope.
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Scientists Uncork Potential Secret Of Red Wine's Health Benefits
Scientists have unraveled a mystery that has perplexed scientists since red wine was first discovered to have health benefits: how does resveratrol control inflammation? (Credit: iStockphoto/Ina Peters)
From Science Daily:
ScienceDaily (Aug. 3, 2009) — Scientists from Scotland and Singapore have unraveled a mystery that has perplexed scientists since red wine was first discovered to have health benefits: how does resveratrol control inflammation? New research published in the August 2009 print issue of The FASEB Journal, not only explains resveratrol's one-two punch on inflammation, but also show how it—or a derivative—can be used to treat potentially deadly inflammatory disease, such as appendicitis, peritonitis, and systemic sepsis.
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Humans 2.0: Replacing The Mind And Body
U.S. Army Sgt. Juan Arredondo, outfitted with an i-LIMB after losing his hand in Iraq, says it does things naturally. The i-LIMB has flexible hydraulic drives located directly in the movable finger joints. Credit: Touch Bionics
From Live Science:
When President Barack Obama said in his weekly radio address Saturday that innovation would be a key to the future of the nation, he probably was not thinking specifically of artificial brains or replacement eyeballs.
But other researchers already have such goals in mind and are well on their way to building Humans 2.0, the real-life Steve Austin of the "Six Million Dollar Man."
Recent breakthroughs in bionics and lab-grown body parts — along with news last month that a Swiss research team aims to recreate the intricacies of the human brain within a decade — show science is rapidly creating many of the parts needed to build a fully functional human almost from scratch.
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Five Tools To Survive the Apocalypse
Air: Filter out ammonia, chlorine or swirling toxic dust. The Advantage respirator gives a snug fit in seconds, using a harness that tightens two head-straps with a single clip. Its facepiece comes in three sizes to protect all types of people. Advantage 420 Half Mask Respirator $40; msanorthamerica.com Brian Klutch
From Popular Science:
Swine flu, nuclear tests, global warming—signs of impending doom abound. Should the unthinkable happen, the smart survivalist has two options: flee the planet or, for those of us who aren’t Richard Branson, stock up on gear that will meet your basic needs during Armageddon. If the world doesn’t end, you can always take your new gadgets camping.
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Comet Formation Theory May Not Be Set In Stone (Or Ice)
Photo: CLOUDY ORIGINS: A comet called 2001 RX14 likely originated from a hypothesized region called the Oort cloud, far outside the planetary region of the solar system. A new model of how comets wind up near the inner planets may revise estimates of the Oort cloud's properties. Mike Solontoi/University of Washington
From Scientific American:
A new model for comet production revises the theory of their origins.
A few times a year, a visitor from deep space swings by Earth's neighborhood. Usually coming in peace, these interlopers pass by close enough to be seen, then continue on their way.
The uninvited guests are comets, streaky globules of ice and dust dislodged from one of their usual haunts far from the sun and planets: the Oort cloud. Named for Dutch astronomer Jan Oort, who hypothesized its existence in 1950, the theorized cloud is thought to contain billions or even trillions of comets that range out a few thousand to tens of thousands of times as far from the sun as Earth is. Oort cloud comets are occasionally nudged onto trajectories carrying them into the inner solar system by the passing of nearby stars or other interactions with the rest of the Milky Way Galaxy.
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From Scientific American:
A new model for comet production revises the theory of their origins.
A few times a year, a visitor from deep space swings by Earth's neighborhood. Usually coming in peace, these interlopers pass by close enough to be seen, then continue on their way.
The uninvited guests are comets, streaky globules of ice and dust dislodged from one of their usual haunts far from the sun and planets: the Oort cloud. Named for Dutch astronomer Jan Oort, who hypothesized its existence in 1950, the theorized cloud is thought to contain billions or even trillions of comets that range out a few thousand to tens of thousands of times as far from the sun as Earth is. Oort cloud comets are occasionally nudged onto trajectories carrying them into the inner solar system by the passing of nearby stars or other interactions with the rest of the Milky Way Galaxy.
Read more ....
Dolphin Body Language 'Follows Human Verbal Communication'
Dolphins inspect a tiger cub at a safari park in Shenzhen, China. Scientists have discovered that the mammals' body language follows human rules of verbal communication. Photo: BARCROFT MEDIA
From The Telegraph:
Dolphin body language follows human rules of verbal communication, scientists have discovered.
As a general rule, the most frequently used words in human languages tend to be the shortest.
The same law applies to dolphins slapping their tails, diving, flopping sideways, and performing other movements when surface swimming, according to Spanish and British researchers.
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Shake, Rattle And Roll -- Why So Few Japanese Pagodas Have Ever Fallen Down
From The Economist:
YOUR correspondent is indebted to readers for their interesting comments about last week’s column on timber-framed buildings. He is especially grateful to Anjin-san, whose observations about Japanese pagodas reminded him of a day spent a dozen years ago with Shuzo Ishida, a structural engineer at Kyoto Institute of Technology. Mr Ishida, known to his students as “Professor Pagoda”, has a passion for the building’s unique dynamics.
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YOUR correspondent is indebted to readers for their interesting comments about last week’s column on timber-framed buildings. He is especially grateful to Anjin-san, whose observations about Japanese pagodas reminded him of a day spent a dozen years ago with Shuzo Ishida, a structural engineer at Kyoto Institute of Technology. Mr Ishida, known to his students as “Professor Pagoda”, has a passion for the building’s unique dynamics.
Read more ....
Galileo's Vision
Image: Galileo was the first to discover the moons of Jupiter. Michael Benson / Kinetikon Pictures / Corbis (Jupiter) / Scala / Art Resource, NY (Galileo)
From The Smithsonium:
Four hundred years ago, the Italian scientist looked into space and changed our view of the universe.
Inside a glass case sits a plain-looking tube, worn and scuffed. Lying in the street, it would look like a length of old pipe. But as I approach it, Derrick Pitts—only half in jest—commands: "Bow down!"
The unremarkable-looking object is in fact one of the most important artifacts in the history of science: it's one of only two surviving telescopes known to have been made by Galileo Galilei, the man who helped revolutionize our conception of the universe. The telescope is the centerpiece of "Galileo, the Medici and the Age of Astronomy," an exhibition at the Franklin Institute in Philadelphia (until September 7).
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From The Smithsonium:
Four hundred years ago, the Italian scientist looked into space and changed our view of the universe.
Inside a glass case sits a plain-looking tube, worn and scuffed. Lying in the street, it would look like a length of old pipe. But as I approach it, Derrick Pitts—only half in jest—commands: "Bow down!"
The unremarkable-looking object is in fact one of the most important artifacts in the history of science: it's one of only two surviving telescopes known to have been made by Galileo Galilei, the man who helped revolutionize our conception of the universe. The telescope is the centerpiece of "Galileo, the Medici and the Age of Astronomy," an exhibition at the Franklin Institute in Philadelphia (until September 7).
Read more ....
Integral Disproves Dark Matter Origin For Mystery Radiation
Combining more than 4 years of observations, the inner Galaxy has been mapped in the 511 keV positron annihilation line with unprecedented detail as shown above using the SPI spectrometer. For the first time, positron annihilation is found to be asymmetric in the inner Galactic disk. Consistent with earlier findings, the annihilation emission is brightest around the Galactic centre. In the sky maps, the Galactic centre is at the origin and the Galactic disk runs along the equator. (Credit: ESA/ INTEGRAL/ MPE (G. Weidenspointner et al.))
From Space Daily:
ScienceDaily (Aug. 2, 2009) — A team of researchers working with data from ESA’s Integral gamma-ray observatory has disproved theories that some form of dark matter explains mysterious radiation in the Milky Way.
That this radiation exists has been known since the 1970s, and several theories have been proposed to explain it. Integral’s unprecedented spectral and spatial resolution showed that it strongly peaks towards the centre of the Galaxy, with an asymmetry along the Galactic disc.
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Sunday, August 2, 2009
Experts Puzzled By Spot On Venus
From the BBC:
Astronomers are puzzled by a strange bright spot which has appeared in the clouds of Venus.
The spot was first identified by an amateur astronomer on 19 July and was later confirmed by the European Space Agency's Venus Express spacecraft.
Data from the European probe suggests the spot appeared at least four days before it was spotted from Earth.
The bright spot has since started to expand, being spread by winds in Venus's thick atmosphere.
Read more ....
Astronomers are puzzled by a strange bright spot which has appeared in the clouds of Venus.
The spot was first identified by an amateur astronomer on 19 July and was later confirmed by the European Space Agency's Venus Express spacecraft.
Data from the European probe suggests the spot appeared at least four days before it was spotted from Earth.
The bright spot has since started to expand, being spread by winds in Venus's thick atmosphere.
Read more ....
Hacking Threat 'Exposes Every iPhone In The World' To Takeover By Criminals
'Vulnerable': Hackers could exploit a security flaw in the iPhone within two weeks and then take devices over in minutes, experts warn
From The Daily Mail:
Criminals could take control of every iPhone in the world via text message, owners are being warned.
Hackers could exploit a newly discovered flaw in Apple's handset to control its key functions - stealing data, making calls, surfing the internet and sending texts.
Security experts warn that hackers could soon hijack any of the world's 21million iPhones for identity theft and other crimes.
Read more ....
Smoothing The Way For Light
Image: Guiding light: Silver films patterned with structures like this pyramid guide light along their surface and concentrate it at the tips. This structure’s surface is very smooth, which prevents scattering. Credit: Science/American Association for the Advancement of Science
From Technology Review:
A technique makes smooth metal films for optical computing and imaging.
Researchers at the University of Minnesota have developed a cheap way to repeatedly make very smooth nanopatterned thin films. The advance could have implications for making devices--such as more efficient solar cells, higher-resolution microscopes, and optical computers--that use light in an unconventional way.
Read more ....
From Technology Review:
A technique makes smooth metal films for optical computing and imaging.
Researchers at the University of Minnesota have developed a cheap way to repeatedly make very smooth nanopatterned thin films. The advance could have implications for making devices--such as more efficient solar cells, higher-resolution microscopes, and optical computers--that use light in an unconventional way.
Read more ....
The U.S. Army's Solar Enewrgy Program
Army Starts Solar Plant; Next Step: Care About Climate Change -- The Danger Room
The U.S. Army is about to start building a 500 megawatt solar thermal plant in the California desert. When it’s done, the facility will be one of the largest renewable energy plants in the world. Which is kind of ironic, since the Army doesn’t pay all that much attention to climate change. Turns out, sustainable energy is safer, said Dr. Kevin Geiss, the program director for the project.
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More News On the Army's Solar Program
Sun power: Army unveils giant solar project -- CNET
Army Green: Ft. Irwin Has Builders for 500 MW Solar Project -- Wall Street Journal
Clark Energy hired for Defense Department solar job -- Business Journal
Army Plans 500 MW of Solar Power at Fort Irwin by 2022 -- Treehugger
Giant Pencil Traces Achaeological Finds Fast
Photo: Less pain, less staking (Image: Felix Ordonez/Reuters)
From New Scientist:
EVERY object unearthed by an archaeological dig must have its exact position recorded. This is normally a painstaking process involving measuring rods and string, but a device that uses technology originally developed to guide robots could speed up the process.
Gran Dolina in central Spain is a Palaeolithic site that contains important hominin remains which date from between 780,000 and 300,000 years ago. Thousands of fossils are discovered there every year, but registering them all by hand makes progress frustratingly slow. So archaeologists working on the site contacted Angélica de Antonio Jiménez and Fernando Seco at the Institute of Industrial Automation in Madrid, to see if they could come up with a better way.
Read more .....
From New Scientist:
EVERY object unearthed by an archaeological dig must have its exact position recorded. This is normally a painstaking process involving measuring rods and string, but a device that uses technology originally developed to guide robots could speed up the process.
Gran Dolina in central Spain is a Palaeolithic site that contains important hominin remains which date from between 780,000 and 300,000 years ago. Thousands of fossils are discovered there every year, but registering them all by hand makes progress frustratingly slow. So archaeologists working on the site contacted Angélica de Antonio Jiménez and Fernando Seco at the Institute of Industrial Automation in Madrid, to see if they could come up with a better way.
Read more .....
New HIV Strain Leapt To Humans From Gorillas: Study
From AFP:
PARIS — French virologists on Sunday said they had found a new subtype of the AIDS virus that appears to have jumped the species barrier to humans from gorillas.
The new strain, found in a woman from Cameroon, West Africa, is part of the HIV-1 family of microbes that account for the vast majority of cases of human immunodeficiency virus (HIV), they said.
Until now, all have been linked to the chimpanzee.
Read more ....
Update: New HIV strain discovered in woman from Cameroon --AP
Evidence Of Liquid Water In Comets Reveals Possible Origin Of Life
Comet Hale-Bopp. The watery environment of early comets, together with the vast quantity of organics already discovered in comets, would have provided ideal conditions for primitive bacteria to grow and multiply, experts argue. (Credit: iStockphoto/Kenneth C. Zirkel)
From Science Daily:
ScienceDaily (July 31, 2009) — Comets have contained vast amounts of liquid water in their interiors during the first million years of their formation, a new study claims.
The watery environment of early comets, together with the vast quantity of organics already discovered in comets, would have provided ideal conditions for primitive bacteria to grow and multiply. So argue Professor Chandra Wickramasinghe and his colleagues at the Cardiff Centre for Astrobiology in a paper published in the International Journal of Astrobiology
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Caught On Video: Immune Cell Destroys Bacteria
Confocal microscope image showing insect immune cells (green) containing fluorescently labeled E.coli (red). Credit: University of Bath
From Live Science:
In a starring role for E. coli, researchers have developed a new technique to make movies of bacteria as they infect their victims and are consumed by the host's immune cells.
The movies mark the first time that scientists have been able to look at bacteria infecting living organisms in real time, according to the researchers. Most studies of bacterial infections are preformed after the host has died.
The scientists, from the University of Bath and the University of Exeter in the UK, tested out their movie-making method on developing fruit fly embryos. They injected fluorescently tagged bacteria into the embryos and observed how the microbes interacted with the insect's immune cells, called hemocytes, using time-lapse confocal microscopy, an imaging technique. They used two types of bacteria for the study Escherichia coli and Photorhabdus asymbiotica.
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Britain's Dirty Money: How theLloose Change In Our Pockets Is Costing The Earth
Escondida in Chile, the world's largest copper mine. A vast amount of water is being drained every day from what is already one of the driest places on earth. These mines are causing significant damage to the planet and its people. Yet the Government-owned Royal Mint continues to buy metal from them
From The Daily Mail:
This vast hole in the ground, visible from space, is the world's biggest copper mine. It supplies the Royal Mint, but is also responsible for inflicting shocking environmental damage and poisoning the local population...
Escondida in Chile, the world's largest copper mine. A vast amount of water is being drained every day from what is already one of the driest places on earth. These mines are causing significant damage to the planet and its people. Yet the Government-owned Royal Mint continues to buy metal from them
Read more ....
The Secret Life Of Sperm Is Unlocked
Some 15 per cent of couples have trouble conceiving,
about half of them because the man has a problem. SPL
about half of them because the man has a problem. SPL
From The Independent:
Infertile couples may be spared years of fruitless treatment with the discovery that the human egg can read the father's genetic key and screen out failures.
Thousands of infertile couples could be spared the pain, anguish and expense of fruitless IVF treatments, thanks to the discovery of a lock-and-key mechanism between sperm and egg cells.
The research could explain why so many couples with no apparent reproductive problems are unable to conceive. Although more than 40,000 in vitro fertilisation cycles are prescribed in Britain each year, only 10,000 births result.
Read more ....
The World's 18 Strangest Buildings—And Why We Love Them
From Popular Mechanics:
This July, the American Institute of Architects forecasted steep declines in nonresidential construction spending through 2010. Spending is projected to decrease by 16 percent this year and another 12 percent in 2010. With less money flowing through the industry, high-end design projects are likely to be scaled back; architects, builders and regular folk are opting for retrofits with more practical design. While the demand may be turning to minimal and frugal architecture, unusual design still holds a place for museums and other prominent locations, primarily because it is so effective at turning heads. Here are some of our favorite unusual designs for museums, offices, homes and libraries—and why they are so effective at drawing attention.
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