Science blog  RSS content feed What is RSS feed?
New Article Alert  
RSS content feed What is RSS feed?
Blogspan.org Archive Page
Back to main page

Closer to the Edge of a Black Hole

Closer to the Edge of a Black Hole
NASA scientists and their international partners using the new Japanese Suzaku satellite have collected a startling new set of black hole observations, revealing details of twisted space and warped time never before seen with such precision.

The observations include clocking the speed of a black hole's spin rate and measuring the angle at which matter pours into the void, as well as evidence for a wall of X-ray light pulled back and........Go to the Astronomy-blog (Added on 10/12/2006 8:16:16 PM)

Secrets Of Black Hole Jets

Secrets Of Black Hole Jets
NASA and Italian scientists using Swift have for the first time determined what the particle jets streaming from black holes are made of.

Black hole particle jets are commonly seen in quasars and other celestial objects, shooting off at nearly light speed. According to the Swift team, these jets appear to be made of protons and electrons, solving a mystery as old as the discovery of jets themselves in the 1970s. The jets observed by Swift........Go to the Astronomy-blog (Added on 10/12/2006 8:00:51 PM)

Cassini Finds More Rings

Cassini Finds More Rings
Images taken by NASA's Cassini spacecraft, looking in the direction of the Sun, have provided researchers fresh insights into the dynamic nature of the rings and, in particular, the creation of new rings made from tiny particles released from larger bodies.

Cassini findings being presented this week at the Division for Planetary Sciences Meeting of the American Astronomical Society held in Pasadena, Calif. include several new faint ring........Go to the Astronomy-blog (Added on 10/12/2006 4:59:47 AM)

Water Temperatures, Pollution Have Oysters In Hot Water

Water Temperatures, Pollution Have Oysters In Hot Water
Oysters exposed to high water temperatures and a common heavy metal are unable to obtain sufficient oxygen and convert it to cellular energy, according to a new study presented at The American Physiological Society conference, Comparative Physiology 2006.

The study showed how cadmium, a heavy metal, reduces the oyster's tolerance of warmer water temperatures and makes it more vulnerable during the summer when water temperatures rise. Half of........Go to the Science-blog (Added on 10/11/2006 5:02:35 AM)

EPA to monitor water systems

EPA to monitor water systems
Sandia National Laboratories scientists are working with the U.S. Environmental Protection Agency (EPA), University of Cincinnati and Argonne National Laboratory to develop contaminant warning systems that can monitor municipal water systems to determine quickly when and where a contamination occurs.

It's all part of the EPA's Threat Ensemble Vulnerability Assessment (TEVA) program to counter threats against water systems. The program uses a........Go to the New-technology-blog (Added on 10/10/2006 10:31:31 PM)

Who wants to be a Grid millionaire?

Who wants to be a Grid millionaire?
The worlds largest scientific Grid has reached a major milestone, dealing with over a million programs each month for the last six months. Scientists submitting programs to the Enabling Grids for E-sciencE (EGEE) project range from biochemists simulating drugs for malaria to geophysicists analysing oil and gas fields. UK sites play a key role in EGEE, running around a fifth of all the programs this year.

Twenty-one sites at universities and........Go to the Media-blog (Added on 10/10/2006 10:09:56 PM)

Paints Bleak Scene In Iraq

Paints Bleak Scene In Iraq
Is the Iraq that Americans see today on their TV screens--rife with escalating violence that seems to verge on civil war--the inevitable result of the U.S. invasion to depose Saddam Hussein? Or did critical mistakes doom our best intentions to establish a democracy?

Those questions, posed by MIT visiting scholar Barbara K. Bodine, jumpstarted a conversation between two prominent journalists appearing in a panel titled "Reporters' Notebook:........Go to the Media-blog (Added on 10/10/2006 9:54:07 PM)

Nobelists' Work Supports Big-bang Theory

Nobelists' Work Supports Big-bang Theory
MIT alumnus George F. Smoot has been awarded the 2006 Nobel Prize in physics, together with John C. Mather, for work that looks back into the infancy of the universe and attempts to gain some understanding of the origin of galaxies and stars.

The work, based on measurements of the cosmic microwave background radiation made with NASA's COBE satellite, provides increased support for the big-bang theory of the origin of the universe. The COBE........Go to the Astronomy-blog (Added on 10/10/2006 9:25:33 PM)

No Hands Video

No Hands Video
Now, a St. Louis-area teenage boy and a computer game have gone hands-off, thanks to a unique experiment conducted by a team of neurosurgeons, neurologists, and engineers at Washington University in St. Louis.

The boy, a 14-year-old who suffers from epilepsy, is the first teenager to play a two-dimensional video game, Space Invaders, using only the signals from his brain to make movements.

Getting subjects to move objects using only their........Go to the New-technology-blog (Added on 10/10/2006 9:21:07 PM)

Hot Nanocrystals

Hot Nanocrystals
Researchers at the Department of Energy's Lawrence Berkeley National Laboratory have discovered that nanocrystals of germanium embedded in silica glass don't melt until the temperature rises almost 200 degrees Kelvin above the melting temperature of germanium in bulk. What's even more surprising, these melted nanocrystals have to be cooled more than 200 K below the bulk melting point before they resolidify. Such a large and nearly symmetrical........Go to the New-technology-blog (Added on 10/9/2006 9:04:24 PM)

Keeping Oil, Gas Control Systems Safe

Keeping Oil, Gas Control Systems Safe
For the past 12 months, Sandia National Laboratories has served as the lead national lab in Project LOGIIC (Linking the Oil and Gas Industry to Improve Cyber Security). The project was created to keep U.S. oil and gas control systems safe and secure, and to help minimize the chance that a cyber attack could severely damage or cripple AmericaTMs oil and gas infrastructure.

Such an attack by viruses, worms or other forms of........Go to the New-technology-blog (Added on 10/9/2006 8:42:11 PM)

Whiskers Sense Three-dimensional World

Whiskers Sense Three-dimensional World
Many mammals use their whiskers to explore their environment and to construct a three-dimensional image of their world. Rodents, for example, use their whiskers to determine the size, shape and texture of objects, and seals use their whiskers to track the fluid wakes of their prey.

Two Northwestern University engineers have been studying the whisker system of rats to better understand how mechanical information from the whiskers gets........Go to the Science-blog (Added on 10/8/2006 6:37:39 PM)

Emotionally Ambivalent Workers Are More Creative

Emotionally Ambivalent Workers Are More Creative
People who experience emotional ambivalence -- simultaneously feeling positive and negative emotions -- are more creative than those who feel just happy or sad, or lack emotion at all, as per a new study.

That's because people who feel mixed emotions interpret the experience as a signal that they are in an unusual environment and thus respond to it by drawing upon their creative thinking abilities, said Christina Ting Fong, an assistant........Go to the Media-blog (Added on 10/6/2006 5:10:10 AM)

Black Hole Musical: Epic But Off-Key

Black Hole Musical: Epic But Off-Key
A gigantic sonic boom generated by a supermassive black hole has been found with NASA's Chandra X-ray Observatory, along with evidence for a cacophony of deep sound.

This discovery was made by using data from the longest X-ray observation ever of M87, a nearby giant elliptical galaxy. M87 is centrally located in the Virgo cluster of galaxies and is known to harbor one of the Universe's most massive black holes.

Scientists detected loops........Go to the Astronomy-blog (Added on 10/6/2006 4:53:28 AM)

Plenty Of Carbon Dioxide Storage Capacity

Plenty Of Carbon Dioxide Storage Capacity
As concern has grown over the effects of the human release of carbon dioxide (CO2) gas into the atmosphere, so too has research into technologies to manage CO2. One such research project, overseen by geologist Brandon Nuttall at the Kentucky Geological Survey (KGS) at the University of Kentucky, has investigated the option for geologic sequestration of captured CO2 in Devonian black shales, organic-rich rocks found beneath about two thirds of........Go to the Science-blog (Added on 10/5/2006 9:55:07 PM)

Sun Was Born In Star Cluster

Sun Was Born In Star Cluster
The death of a massive nearby star billions of years ago offers evidence the sun was born in a star cluster, say astronomers at the University of Illinois at Urbana-Champaign. Rather than being an only child, the sun could have hundreds or thousands of celestial siblings, now dispersed across the heavens.

In a paper accepted for publication in the Astrophysical Journal, astronomy professors Leslie W. Looney and Brian D. Fields, and........Go to the Astronomy-blog (Added on 10/4/2006 10:29:24 PM)

Experimental Ragweed Therapy

Experimental Ragweed Therapy
Americans accustomed to the seasonal misery of sneezing, runny noses and itchy, watery eyes caused by ragweed pollen might one day benefit from an experimental allergy treatment that not only requires fewer injections than standard immunotherapy, but leads to a marked reduction in symptoms that persists for at least a year after therapy has stopped, according to a new study in the October 5 issue of The New England Journal (NEJM) (NEJM). The........Go to the Media-blog (Added on 10/4/2006 10:14:39 PM)

Tree Rings Provide A 200-year-old Hurricane Record

Tree Rings Provide A 200-year-old Hurricane Record
Researchers have shown that an age-old "database"--tree rings--contains surprisingly accurate information about hurricane activity that occurred hundreds of years ago. By measuring different chemical forms of oxygen present in the rings, scientists identified periods when hurricanes hit areas of the Southeast more than 100 years before modern records were kept.

The technique allows researchers to extend from decades to centuries the........Go to the Science-blog (Added on 10/4/2006 10:09:30 PM)

How Young Adult Children Of Immigrants Assimilate

How Young Adult Children Of Immigrants Assimilate
While the vast majority of young adult children of immigrants experience upward economic and social mobility, a new study finds that a significant minority are suffering from lower levels of education, lower incomes, higher birth rates and higher levels of incarceration. Furthermore, it is the U.S.-born children of Mexican, Haitian and West Indian immigrants who experience these problems in the largest proportions.

The study, led by........Go to the Media-blog (Added on 10/4/2006 9:49:22 PM)

Carbon Nanotubes To Detect Defects In Composites

Carbon Nanotubes To Detect Defects In Composites
Two University of Delaware scientists have discovered a means to detect and identify damage within advanced composite materials by using a network of tiny carbon nanotubes, which act in much the same manner as human nerves.

The discovery has important implications both in the laboratory, where the researchers hope to better predict the life span of various composite materials, and in everyday applications, where it could become an important........Go to the New-technology-blog (Added on 10/4/2006 8:15:27 PM)

  Astronomy blog  RSS content feed What is RSS feed?

Headcount Of Local Black Holes

Headcount Of Local Black Holes
NASA researchers using the Swift satellite have conducted the first complete census of galaxies with active, central black holes, a project that scanned the entire sky several times over a nine-month period.

The all-sky survey contains more than 200 supermassive black holes called Active Galactic Nuclei, or AGN, and provides a definitive census of black hole activity in the local universe. The team uncovered a number of new black holes that........Go to the Astronomy-blog (Added on 10/12/2006 8:10:43 PM)

In Wake Of Horse Slaughter Bill

In Wake Of Horse Slaughter Bill
The American Horse Slaughter Prevention Act, making its way from the U.S. House to the Senate, could leave thousands of horses with no final resting ground.

Composting may be an environmentally friendly option that fits in the "circle of life" frame of mind and may be less emotional, two area researchers said.

On Sept. 7 the House approved the Act, which bans the slaughter of horses for human consumption by a vote of 263-146. The Senate........Go to the Media-blog (Added on 10/12/2006 5:17:16 AM)

More Powerful Computer Chips

More Powerful Computer Chips
A University of Central Florida research team has made a substantial inroad toward establishing extreme ultraviolet light (EUV) as a primary power source for manufacturing the next generation of computer chips.

The team, led by Martin Richardson, university trustee chair and UCF's Northrop Grumman professor of X-Ray optics, successfully demonstrated for the first time an EUV light source with 30 times the power of previous recorded attempts ........Go to the New-technology-blog (Added on 10/11/2006 8:25:38 PM)

Giant Insects Might Reign

Giant Insects Might Reign
The delicate lady bug in your garden could be frighteningly large if only there was a greater concentration of oxygen in the air, a new study concludes. The study adds support to the theory that some insects were much larger during the late Paleozoic period because they had a much richer oxygen supply, said the study's lead author Alexander Kaiser.

The study, "No giants today: tracheal oxygen supply to the legs limits beetle size,'' will be........Go to the Science-blog (Added on 10/11/2006 4:51:14 AM)

Research Development And Economic Growth

Research Development And Economic Growth
New calculations from the U.S. Bureau of Economic Analysis (BEA) suggest research and development (R&D) accounted for a substantial share of the resurgence in U.S. economic growth in recent years. Using data from the National Science Foundation's (NSF) annual surveys of government, academic, industry and non-profit R&D expenditures, the bureau determined R&D contributed 6.5 percent to economic growth between 1995 and 2002.

Some 40 percent of........Go to the Media-blog (Added on 10/10/2006 10:14:14 PM)

Gems Of Knowledge

Gems Of Knowledge
By processing vast amounts of data, computers helped astronomers make new discoveries about the universe. Now they're helping banks and other companies learn more about their customers.

As telescopes scan the heavens they generate huge amounts of data. Take the Hubble Space Telescope, for example. It produces about 1,000 gigabytes of data each year - enough to fill more than 200 million pages. Newer telescopes generate even more.

So what........Go to the Astronomy-blog (Added on 10/10/2006 10:04:53 PM)

Paints Bleak Scene In Iraq

Paints Bleak Scene In Iraq
Is the Iraq that Americans see today on their TV screens--rife with escalating violence that seems to verge on civil war--the inevitable result of the U.S. invasion to depose Saddam Hussein? Or did critical mistakes doom our best intentions to establish a democracy?

Those questions, posed by MIT visiting scholar Barbara K. Bodine, jumpstarted a conversation between two prominent journalists appearing in a panel titled "Reporters' Notebook:........Go to the Media-blog (Added on 10/10/2006 9:33:36 PM)

Hispanic Heritage Winner Sets Sights High

Hispanic Heritage Winner Sets Sights High
Setting high goals and achieving them is crucial, says Freshman Eletha Flores of Maryland, the recipient of the 2006 Hispanic Heritage Foundation's National Youth Award for Engineering and Mathematics.

More than 13,000 high school students from across the country applied for the awards. Only nine students were selected in the various categories. MIT freshman Luis Flores (no relation) also received one of the awards in the sports category.........Go to the Media-blog (Added on 10/10/2006 9:30:10 PM)

Teens And Cigarette Ads

Teens And Cigarette Ads
Today alone, more than 4,400 U.S. teenagers will start smoking, according to statistics from the Substance Abuse and Mental Health Administration. Many of these adolescents will be lured to cigarettes by advertisements and movies that feature sophisticated models and actors, suggesting that smoking is a glamorous, grown-up activity. However, teens who are savvier about the motives and methods of advertisers may be less inclined to take to........Go to the Media-blog (Added on 10/9/2006 10:08:44 PM)

Disks Around Stars

Disks Around Stars
The NASA/ESA Hubble Space Telescope, in collaboration with ground-based observatories, has at last confirmed what philosopher Emmanuel Kant and scientists have long predicted: that planets form from debris disks around stars.

More than 200 years ago, the philosopher Emmanuel Kant first proposed that planets are born from disks of dust and gas that swirl around their home stars. Though astronomers have detected more than 200 extrasolar........Go to the Astronomy-blog (Added on 10/9/2006 9:19:08 PM)

Weaknesses In High-tech Immigration

Weaknesses In High-tech Immigration
Legislation pending before Congress "would admit foreign computing and engineering (C&E) workers in numbers much greater than historical trends or casual assumptions about future employment levels," according to a recent study from Georgetown University, commissioned by IEEE-USA.

The August report from Georgetown's Institute for the Study of International Migration concluded that the estimated number of new high-tech visas available under........Go to the New-technology-blog (Added on 10/9/2006 8:54:36 PM)

Detailed view of Victoria Crater

Detailed view of Victoria Crater
With stunningly powerful vision, the HiRISE camera on NASA's Mars Reconnaissance Orbiter has taken a remarkable picture that shows the exploration rover Opportunity poised on the rim of Victoria crater on Mars.

The High Resolution Imaging Science Experiment (HiRISE) camera detailed the entire 800-meter (roughly half-mile) Victoria crater and the rover -- down to its rover tracks and shadows -- in a single high-resolution image taken........Go to the Astronomy-blog (Added on 10/8/2006 6:43:37 PM)

More Than Meets The Eye

More Than Meets The Eye
Ever watch a jittery video made with a hand-held camera that made you almost ill? With our eyes constantly darting back and forth and our body hardly ever holding still, that is exactly what our brain is faced with. Yet despite the shaky video stream, we usually perceive our environment as perfectly stable.

Not only does the brain find a way to compensate for our constantly flickering gaze, but researchers at the Salk Institute for........Go to the Science-blog (Added on 10/8/2006 5:11:51 PM)

Methamphetamine Use On The Rise

Methamphetamine Use On The Rise
It's cheap, addictive and can harm your smile for life. Its use is also rapidly increasing both nationally and world-wide. It is methamphetamine. As per the National Survey on Drug Use and Health, more than 12 million Americans age 12 and older reported they had tried methamphetamine at least once in their lifetime. The Academy of General Dentistry (AGD) advises it is imperative that the public and dental professionals learn about the severe........Go to the Media-blog (Added on 10/6/2006 5:01:32 AM)

Experiment Yields Bubbly Surprise

Experiment Yields Bubbly Surprise
University of Chicago physicists have discovered a new class of behavior in air bubbles rising from an underwater nozzle. In this surprising behavior, the bubbles tear apart in sharp jerks instead of pinching off at a point, the research team will report in the Oct. 6 issue of the journal Physical Review Letters.

The research is helping researchers understand the mathematical explosions they encounter in the equations that govern the physics........Go to the New-technology-blog (Added on 10/5/2006 10:04:58 PM)

Remains Of St. Louis Founder's Home

Remains Of St. Louis Founder's Home
Archaeologists believe they have found the Illinois home of the founder of St. Louis.

What had been thought to be a priest's residence near the French colonial village of New Chartres, in present-day southern Illinois, "appears instead to have been owned by a series of merchants during the mid-1700s, before it was sold to a young merchant from New Orleans Pierre Laclede, the founder of the city of St. Louis".

So says Robert Mazrim, an........Go to the Media-blog (Added on 10/4/2006 10:27:44 PM)

Alaskans Feel The Heat Of Global Warming

Alaskans Feel The Heat Of Global Warming
A new study finds that most Alaskans believe global warming is happening and is a serious threat to the state. The statewide survey, with funding from the National Science Foundation (NSF) and the Center for Research on Environmental Decisions (CRED) at Columbia University, was commissioned by Dr. Anthony Leiserowitz of Decision Research and conducted this summer by the Craciun Research Group.

Jean Craciun, research director for CRG said,........Go to the Science-blog (Added on 10/4/2006 10:22:01 PM)

Genome Info From "Plant Destroyers"

Genome Info From
An international team of scientists has published the first two genome sequences from a destructive group of plant pathogens called Phytophthora--a name that literally means "plant destroyer." The more than 80 species of fungus-like Phytophthora (pronounced "fy-TOFF-thor-uh") attack a broad range of plants and together cost the agriculture, forestry and nursery industries hundreds of billions of dollars each year.

Even though Phytophthora........Go to the Science-blog (Added on 10/4/2006 10:06:28 PM)

Ice Age Climate-change And Ocean Salinity

Ice Age Climate-change And Ocean Salinity
Sudden decreases in temperature over Greenland and tropical rainfall patterns during the last Ice Age have been linked for the first time to rapid changes in the salinity of the north Atlantic Ocean, as per research published Oct. 5, 2006, in the journal Nature. The results provide further evidence that ocean circulation and chemistry respond to changes in climate.

Using chemical traces in fossil shells of microscopic planktonic life forms,........Go to the Science-blog (Added on 10/4/2006 10:02:51 PM)

Earlier Crop Plantings Could Curb Future Yields

Earlier Crop Plantings Could Curb Future Yields
In an ongoing bid to grow more corn, farmers in the U.S. Corn Belt are planting seeds much earlier today than they did 30 years ago, a new study has found.

Poring over three decades of agricultural records, Christopher Kucharik, an associate scientist at the University of Wisconsin-Madison, discovered that farmers in 12 U.S. states now put corn in the ground around two weeks earlier than they did during the late 1970s. His findings are........Go to the Science-blog (Added on 10/4/2006 8:31:56 PM)

   
Older Blog Entries   1   2   3   4   5   6   7   8   9   10   11   12  
Contact us

New technology blog Computer science Health news blog Biology blog
Psychology Blog Media Blog Astronomy Blog Science Blog