Castonguay : Sciences

UGA Scientists Invent Long-lasting, Near Infrared-emitting Material

2011-11-25T19:14:00.000-08:00

No extraordinary effects from microwave and mobile phone heating

2011-11-25T19:06:00.000-08:00

Paléontologie : Encore plus gros, les Dinosaures

2010-10-03T10:40:00.000-07:00

Discovery Scientists Use Math to Build Better Stents

2010-10-02T20:14:00.000-07:00

A 3-D computer model of a stent.

Discovery : Asymmetric Electron Behavior Discovered in High-temperature Superconductors

2010-10-02T20:10:00.001-07:00

Cilia Revolution Man-made, hair-like structures poised to change industry paradigms

2010-10-02T19:54:00.000-07:00

Centre des Sciences de Montréal : SiO2 : La Science du Verre

2010-10-02T19:25:00.000-07:00

National Science and Technology Week : October 15-24, 2010

2010-10-02T19:20:00.000-07:00

Genius of Britain Episode 2 (Part 1/5)

2010-09-11T21:28:00.000-07:00

Genius of Britain Episode 2 (Part 2/5)

2010-09-11T21:26:00.000-07:00

Genius of Britain Episode 2 (Part 3/5)

2010-09-11T21:22:00.000-07:00

Genius of Britain Episode 2 (Part 4/5)

2010-09-11T21:18:00.000-07:00

Genius of Britain Episode 2 (Part 5/5)

2010-09-11T21:17:00.000-07:00

La Dikerogammarus villosus, surnommée «crevette tueuse», est un véritable cauchemar en Europe occidentale

2010-09-11T19:48:00.000-07:00

Enigma Chill-Out

2010-09-05T08:28:00.000-07:00

Great ball of fire

2010-08-06T07:48:00.000-07:00

On August 1, 2010, almost the entire Earth-facing side of the sun erupted in a tumult of activity. This image from the Solar Dynamics Observatory of the news-making solar event on August 1 shows the C3-class solar flare (white area on upper left), a solar tsunami (wave-like structure, upper right), multiple filaments of magnetism lifting off the stellar surface, large-scale shaking of the solar corona, radio bursts, a coronal mass ejection and more.

This multi-wavelength extreme ultraviolet snapshot from the Solar Dynamics Observatory shows the sun's northern hemisphere in mid-eruption. Different colors in the image represent different gas temperatures. Earth's magnetic field is still reverberating from the solar flare impact on August 3, 2010, which sparked aurorae as far south as Wisconsin and Iowa in the United States. Analysts believe a second solar flare is following behind the first flare and could re-energize the fading geomagnetic storm and spark a new round of Northern Lights.

Credit: NASA/SDO/AIA

Shade-coffee farms support native bees that help maintain genetic diversity in remnant tropical forests

2010-08-04T10:22:00.000-07:00

Aurora Show Heading for Earth Following 4 Solar Eruptions

2010-08-04T10:15:00.000-07:00

Most Panda Habitat is Outside Nature Reserves According to Joint MSU - Chinese Research

2010-08-04T10:10:00.000-07:00

Triggers of Volcanic Eruptions in Oregon's Mount Hood Investigated

2010-08-04T09:44:00.000-07:00

Mount Hood, Oregon

Photon enhanced thermionic emission could double efficiency of solar cells

2010-08-04T09:32:00.000-07:00

Brown Dwarf Found Orbiting a Young Sun-Like Star

2010-08-04T09:22:00.000-07:00

Evolution in 120 seconds

2010-08-04T09:15:00.000-07:00

Behind the Secrets of Silk Lie High-Tech Opportunities

2010-08-04T09:11:00.000-07:00

The Importance of Charles Darwin

2010-08-04T09:08:00.000-07:00

Mechanical Regulation Effects Stem Cell Development, Adhesion

2010-08-04T09:04:00.000-07:00

The Birth of the Universe Big Bang and Beyond

2010-08-04T08:45:00.000-07:00

Silicon can be made to melt in reverse

2010-08-04T08:43:00.000-07:00

The size of the Universe

2010-08-04T08:35:00.000-07:00

Bedrock is a Milestone in Climate Research

2010-08-04T08:30:00.000-07:00

We May Actually Live Inside a Black Hole, Vincent

2010-08-04T08:23:00.000-07:00

Le satellite Planck a délivré une première image de l'ensemble du ciel

2010-07-07T02:34:00.000-07:00

L'Univers, actuel et passé

2010-07-07T02:29:00.000-07:00

No Sex Please, We’re Rotifers: Study Documents Use of Hormone Progesterone in Microscopic Aquatic Animals

2010-06-28T17:37:00.000-07:00

MIT leads the first team to study a Kuiper Belt object during a stellar occultation Occultation provided enough data to determine the KBO’s size and a

2010-06-28T17:32:00.000-07:00

This artist's concept of a Kuiper Belt object found by the Hubble telescope is only 3,200 feet across and a whopping 4.2 billion miles away.
Image: NASA

Flower power makes tropics cooler, wetter

2010-06-28T17:29:00.000-07:00

Rensselaer Polytechnic Institute Researchers Develop Ultra-Simple Method for Creating Nanoscale Gold Coatings

2010-06-28T17:24:00.000-07:00

Researchers at Rensselaer have developed a new, ultra-simple method for making layers of gold that measure only billionths of a meter thick. As seen in the research image, drops of gold-infused toluene applied to a surface evaporate within a few minutes and leave behind a uniform layer of nanoscale gold. The process requires no sophisticated equipment, works on nearly any surface, takes only 10 minutes, and could have important implications for nanoelectronics and semiconductor manufacturing.

Mars : Encore plus humide qu'on le pensait

2010-06-28T17:14:00.000-07:00

2010-05-01T22:19:00.001-07:00

2010-05-01T22:18:00.001-07:00

2010-05-01T22:17:00.001-07:00

Jason Karp Wins Research Expo 2010 Rudee Outstanding Poster

2010-05-01T19:54:00.000-07:00

Congratulations to Jason Karp, the electrical engineering PhD student who won the top prize -- the Rudee Outstanding Poster Award -- at Research Expo 2010 for his new solar concentrator design. Read the abstract at Poster #98 at http://www.jacobsschool.ucsd.edu/re/ Related Link »

Short Communication Local atmospheric decoupling in complex topography alters climate change impacts

2010-05-01T19:45:00.000-07:00

Bizarre matter could find use in quantum computers Rice physicists: Odd electron mix has fault-tolerant quantum registry

2010-05-01T19:36:00.000-07:00

From left, Rice physicist Rui-Rui Du, graduate students Chi Zhang and Yanhua Dai, and (not pictured) former postdoctoral researcher Tauno Knuuttila have found that odd groupings of ultracold electrons could be useful in making fault-tolerant quantum computers.

Through the Looking Glass: Scientists Peer into Antarctica's Past to See Future Climate

2010-05-01T19:34:00.000-07:00

Link Discovered Between Carbon, Nitrogen May Provide New Ways to Mitigate Pollution Problems

2010-05-01T19:30:00.000-07:00

Aphids Evolved Special, Surprising Talents

2010-05-01T19:18:00.000-07:00

La vraie couleur des dinosaures

2010-01-29T06:38:00.000-08:00

Comme leurs descendants les oiseaux, les théropodes étaient pourvus de plumes colorées, selon une découverte de paléontologues britanniques et chinoi
Dans un gisement vieux de 100 millions d’années situé dans le nord-est de la Chine, une équipe de paléontologues ont exhumé les plumes fossilisées de théropodes.

Negating "Climategate": Copenhagen Talks and Climate Science Survive Stolen E-Mail Controversy Release of stolen messages

2010-01-28T23:12:00.000-08:00

CLIMATE CLAMOR: Demonstrators in Copenhagen at December rally in a call for action.

New large-clawed Jurassic dinosaur sheds light on elusive lineage

2010-01-28T23:09:00.000-08:00

Smart CCTV

2010-01-28T23:01:00.000-08:00

Octopus tool use

2010-01-28T22:53:00.000-08:00

Night Vision Camera

2010-01-28T22:45:00.000-08:00

Rock of Ages

2009-09-15T08:09:00.000-07:00

Another way of getting rid of carbon dioxide

2008 Best Inventions of the Year

2009-09-14T14:31:00.000-07:00

Space Industry : Do We Have Lift-Off?

2009-08-22T02:59:00.000-07:00

Which countries have launched most rockets into space?

Nothing New Under The Sun

2009-08-22T02:00:00.000-07:00

Anthropogenic global warming started when people began farming

Galileo, Four Centuries On As important as Darwin

2009-08-22T01:54:00.000-07:00

In praise of astronomy, the most revolutionary of sciences

Maized And Confused : Does Ethanol In Iowa Cause Deforestation In Brazil?

2009-08-12T08:31:00.000-07:00

Steering Sunbeams

2009-08-08T05:38:00.001-07:00

Solar power is becoming less of a luxury

Techs And The City : Lab By lab In And Around San Francisco

2009-08-03T07:40:00.000-07:00

Un Panache De La Taille Du Système Solaire

2009-07-30T05:25:00.000-07:00

Total Solar Eclipse, July 21 2009

2009-07-24T20:23:00.000-07:00

Total Solar Eclipse 2009:Millions of people in Asia will see the longest total solar eclipse this century on Wednesday as swaths of India and China are plunged into darkness.
Scores of amateur stargazers and scientists will travel long distances for the eclipse, which will last for about five minutes.
The eclipse will first appear in the Gulf of Khambhat just north of Mumbai.
It will move east across India, Nepal, Burma, Bangladesh, Bhutan and China before hitting the Pacific.
The eclipse will cross some southern Japanese islands and will last be visible from land at Nikumaroro Island in the South Pacific nation of Kiribati.
Elsewhere, a partial eclipse will be visible across much of Asia.
The previous total eclipse, in August 2008, lasted two minutes and 27 seconds. This one will last six minutes and 39 seconds at its maximum point.
Alphonse Sterling, a Nasa astrophysicist who will be following the eclipse from China, scientists are hoping data from the eclipse will help explain solar flares and other structures of the sun and why they erupt.

A solar eclipse occurs when the moon passes between the Sun and the Earth so that the Sun is fully or partially covered. This can only happen during a new moon, when the Sun and Moon are in conjunction as seen from the Earth. At least two and up to five solar eclipses can occur each year on Earth, with between zero and two of them being total eclipses.[1] Total solar eclipses are nevertheless rare at any location because during each eclipse totality exists only along a narrow corridor in the relatively tiny area of the Moon's umbra.
A total solar eclipse is a spectacular natural phenomenon and many people travel to remote locations to observe one. The 1999 total eclipse in Europe helped to increase public awareness of the phenomenon, as illustrated by the number of journeys made specifically to witness the 2005 annular eclipse and the 2006 total eclipse. The most recent solar eclipse occurred on January 26, 2009, and was an annular eclipse. On July 22 2009, the next total solar eclipse will occur.
In ancient times, and in some cultures today, solar eclipses have been attributed to supernatural causes. Total solar eclipses can be frightening for people who are unaware of their astronomical explanation, as the Sun seems to disappear in the middle of the day and the sky darkens in a matter of minutes.

It will be visible from a narrow corridor through northern Maldives, northern India, eastern Nepal, northern Bangladesh, Bhutan, the northern tip of Myanmar, central China and the Pacific Ocean, including the Ryukyu Islands, Marshall Islands and Kiribati.
Totality will be visible in many large cities, including Surat, Vadodara, Bhopal, Varanasi, Patna, Dinajpur, Guwahati, Chengdu, Nanchong, Chongqing, Yichang, Jingzhou, Wuhan, Huanggang, Hefei, Hangzhou, Wuxi, Huzhou, Suzhou, Jiaxing, Ningbo and Shanghai, as well as over the Three Gorges Dam.[5][6] According to some experts, Taregana[7][8] in Bihar is the "best" place to view the event.
A partial eclipse will be seen from the much broader path of the Moon's penumbra, including most of Southeast Asia (all of India and China) and north-eastern Oceania.
This solar eclipse is the longest total solar eclipse that will occur in the twenty-first century, and will not be surpassed in duration until June 13, 2132. Totality will last for up to 6 minutes and 39 seconds, with the maximum eclipse occurring in the ocean at 02:35:21 UTC about 100 km south of the Bonin Islands, southeast of Japan. The uninhabited North Iwo Jima island is the landmass with totality time closest to maximum, while the closest inhabited point is Akusekijima, where the eclipse will last 6 minutes and 25 seconds.

Human Spaceflight : Over The Moon

2009-07-20T19:05:00.000-07:00

On the 40th anniversary of the first moon landing, America wonders whether to go back

Solar Cycle Linked to Global Climate

2009-07-17T04:27:00.000-07:00

Scientists find link between solar cycle and global climate similar to El Nino/La Nina.

A Revealing One-Finger Exercise

2009-07-17T04:03:00.000-07:00

Seals Quickly Respond To Habitat And Climate Change

2009-07-17T03:58:00.000-07:00

Preserved Elephant Seal mummy, Antarctica

New Way To Make Sensors That Detect Toxic Chemicals

2009-07-17T03:51:00.000-07:00

Patricia Morris

Forest Fire Prevention Efforts Will Lessen Carbon Sequestration

2009-07-17T03:47:00.000-07:00

Robot Learns to Smile and Frown

2009-07-17T03:40:00.000-07:00

The Einstein Robot Head At UC San Diego Performs Asymmetric Random Facial Movements As A Part Of The Expression Learning Process.

Are We Nearly There Yet?

2009-07-12T03:06:00.000-07:00

Motorists could learn a thing or two from ants

Plants Put Limit on Ice Ages

2009-07-05T08:55:00.000-07:00

Plasma Waves Studied for New Electronics

2009-07-05T08:51:00.000-07:00

William Stillman evaluates the effects of focused terahertz radiation on ring oscillator circuits.

European Union: Bio-Preparedness

2009-07-05T07:35:00.000-07:00

Les Abeilles Menacées

2009-07-05T07:23:00.000-07:00

Flights of Fancy

2009-07-04T09:18:00.000-07:00

Why airborne automobiles will never take off

Discovery of a Water Snake That Startles Fish in a Way That Makes Them Flee Into its Jaws

2009-06-30T10:20:00.000-07:00

To View the High Speed Video :
http://sitemason.vanderbilt.edu/news/video/2009/06/18/video-tentacled-snake-in-action.82827

Desert Dust Alters Ecology of Colorado Alpine Meadows

2009-06-30T10:15:00.000-07:00

Unlike Rubber Bands, Molecular Bonds May Not Break Faster When Pulled

2009-06-29T05:02:00.000-07:00

All Shook Up

2009-06-28T08:49:00.000-07:00

CO2 Higher Today Than Last 2.1 Million Years : Study Offers Detailed Look at Past Greenhouse Gas Levels

2009-06-26T05:32:00.000-07:00

Researchers Putting a Freeze on Oscillator Vibrations

2009-06-26T05:27:00.000-07:00

University of Oregon work could boost quantum information processing, allow more precise measurements. Hailin Wang, a member of the Oregon Center for Optics and a professor in the UO physics department, and his doctoral student Young-Shin Park performed the research under grants from the National Science Foundation and Army Research Laboratory through the Oregon.

Stream of Sand Behaves Like Water

2009-06-25T04:56:00.000-07:00

Algae : A New Way to Make Biodiesel

2009-06-25T04:52:00.000-07:00

Newly Uncovered Enzymes Turn Corn Plant Waste into Biofuel

2009-06-24T04:40:00.000-07:00

CORN STOVER: The remnants (or 'stover') of corn after it's harvested can be a good source of biofuel, especially when combined with the right enzymes.
WIKIMEDIA COMMONS/ROYALBROIL

Large 2009 Gulf Of Mexico 'Dead Zone' Predicted

2009-06-24T04:36:00.000-07:00

Mississippi dead zone in 2004. This year's Gulf of Mexico "dead zone" could be one of the largest on record, continuing a decades-long trend that threatens the health of a half-billion-dollar fishery. (Credit: Photo courtesy of NASA/Goddard Space Flight Center Scientific Visualization Studio)

Scientists Bring 'Light' To Moon's Permanently Dark Craters

2009-06-23T05:40:00.000-07:00

Cold Case Techniques Bring Mummy’s Face To 'Life'

2009-06-23T05:37:00.000-07:00

Avoiding Catastrophes

2009-06-23T02:40:00.000-07:00

It is easy to destroy an ecosystem but difficult to rebuild it

Scientists Create First Comprehensive Computer Model of Sunspots

2009-06-19T12:36:00.000-07:00

Sudden Collapse in Ancient Biodiversity : Was Global Warming the Culprit?

2009-06-19T12:29:00.000-07:00

Rich Countries and Climate Change : Hot, Wet and Costly

2009-06-19T11:31:00.001-07:00

Protein that Triggers Plant Cell Division Revealed by Researchers

2009-06-18T06:16:00.001-07:00

Advance in Understanding Cellulose Synthesis

2009-06-18T06:11:00.000-07:00

Exploring High-Temperature Superconductivity and the Pseudogap

2009-06-18T06:09:00.000-07:00

Using both scanning tunneling microscopy (STM) and angle-resolved photo-electron spectroscopy (ARPES) gives researchers a more complete understanding of high-temperature superconducting materials. STM can show actual atoms on the material's surface. ARPES uses the photoelectric effect by aiming a beam of light (photons) at the material's surface. The photons excite atoms in the material, causing them to eject electrons, which are then captured by a detector. The momentum (speed and direction) of the ejected electrons give researchers information about the momentum of electrons inside the material.

Credit: Nicolle Rager Fuller, National Science Foundation

Betelgeuse, Red Supergiant In Constellation Orion, Has Shrunk By 15 Percent In 15 Years

2009-06-17T05:55:00.000-07:00

Common Fish Species Has Ability To Learn

2009-06-17T05:53:00.000-07:00

Shuttle Launch Derailed Again by Hydrogen Leak

2009-06-17T04:52:00.000-07:00

Meteorite Grains Divulge Earth's Cosmic Roots

2009-06-16T06:58:00.000-07:00

Pacific Volcano Blows Top, Grounds Flights

2009-06-16T05:37:00.000-07:00

Sarychev Peak : Location: 48.1N, 153.2E
Elevation: 4906 feet (1496 m)
Sarychev Peak, a stratovolcano, is the most active volcanoes in the Kurile Islands. Sarychev Peak erupted at least 14 times between 1765 and 1989. The largest eruption (VEI=4) was in 1924. Most eruptions are moderate to moderate-large (VEI=2-3) and explosive. An eruption in 1960, the last major eruption, produced a 3 mile (5 km) high ash cloud. An eruption in 1964 lasted only 6 minutes.