Friday 25 July 2014

Researchers Identify Stink Bug Attractant

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U.S. Department of Agriculture (USDA) researchers have deciphered the chemical signals the brown marmorated stink bug (BMSB) uses to attract other stink bugs, opening the door to development of traps and technologies that should help keep the invasive pest out of backyards, gardens, homes and agricultural operations. A study detailing the chemical structure of the stink bug’s “aggregation pheromone,” how this attractant can be synthesized, and results of field trials has been published in the Journal of Natural Products by scientists with USDA’s Agricultural Research Service (ARS) and their partners. ARS is USDA’s chief intramural scientific research agency. “The stink bug is a widespread nuisance and a serious threat to producers of apples, peaches, corn, soybeans and a number of other important agricultural products,” said ARS Administrator Chavonda Jacobs-Young. “This research demonstrates how the dedication, skill and commitment of ARS researchers is addressing the changing needs of society and the problems faced not only by the agricultural community, but the public at large.” The BMSB is native to Asia. Since its discovery in Allentown, Pennsylvania, in 2001, it has devastated orchards, crops and fields and become a terrible nuisance in gardens, backyards and homes. It has an appetite for up to 300 different plants. Estimates of

The post Researchers Identify Stink Bug Attractant has been published on Technology Org.

 
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A symphony of sounds

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A symphony of sounds
Ok, cacophony is more like it ;) Still sweet, though :)
 #outerspace #forwidersharing

 » see original post https://plus.google.com/116000959328274308893/posts/jpQxHap7Weh
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A scientific fact-check of 2001: A Space Odyssey

Science Focus

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2001: A Space Odyssey gets high marks from cinephiles and scientists alike, with good reason: director Stanley Kubrick was just as obsessive about making a scientifically plausible film as he was about crafting an epic, mythopoetic narrative.

Kubrick and his crew "paid attention to science," Peter Norvig, formerly NASA's top computer scientist, told SFGate. "They didn't cheat and have instantaneous transportation all the way across the solar system. It still took them a couple of years to get to Jupiter, and it took 10 minutes for transmissions to get back and forth."

(More from World Science...

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 » see original post http://theweek.com/article/index/264686/a-scientific-fact-check-of-2001-a-space-odyssey
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9 things you probably didn't know about the moon

Science Focus

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You probably know: Earth's moon likely formed after a planet-size object collided with Earth about 4.5 billion years ago.

BUT DID YOU KNOW: The birth of the moon might have given us our 24-hour day.

One lingering question scientists have about the impact-birth theory: Why are the Earth and the moon made out of the exact same stuff, geochemically speaking? Why doesn't the moon contain material from this mysterious impactor?

In 2012, Harvard scientists Matija Cuk and Sarah Stewart offered a new vision of the moon's formation with one new key element: a fast-spinning Earth. At the time of impact...

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 » see original post http://theweek.com/article/index/264929/9-things-you-probably-didnt-know-about-the-moon
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Red Supergiant Star V838 Monocerotis Square Sticker

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: envelope sealers, amazing astronomy images, hubble images, monocerotis, supermassive red giant, stars, interstellar dust, swirling dust clouds, monoceros constellation, red supergiant star

Galaxies, Stars and Nebulae series A gorgeous astronomy picture featuring a distant star, named V838 Monocerotis, in the direction of the constellation of Monoceros on the outer edge of our Milky Way. The image shows the swirls of dust spiralling across trillions of miles of interstellar space, lit mainly from within by a pulse of light from the red supergiant, two years into its journey.

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Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA

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Cosmic Crab Nebula

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The Crab Pulsar, a city-sized, magnetized neutron star spinning 30 times a second, lies at the center of this tantalizing wide-field image of the Crab Nebula. A spectacular picture of one of our Milky Way's supernova remnants, it combines optical survey data with X-ray data from the orbiting Chandra Observatory. The composite was created as part of a celebration of Chandra's 15 year long exploration of the high energy cosmos. Like a cosmic dynamo the pulsar powers the X-ray and optical emission from the nebula, accelerating charged particles to extreme energies to produce the jets and rings glowing in X-rays. The innermost ring structure is about a light-year across. With more mass than the Sun and the density of an atomic nucleus, the spinning pulsar is the collapsed core of the massive star that exploded, while the nebula is the expanding remnant of the star's outer layers. The supernova explosion was witnessed in the year 1054.

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The Carina Nebula Eta Carina Nebula NGC 3372 Room Decals

Here's a great wall decal featuring a beautiful image from deep space


tagged with: the carina nebula, eta carina nebula, ngc 3372, carina nebula, eta carina, carina, nebula, stars, outer space, astronomy

The Carina Nebula (also known as the Great Nebula in Carina, the Eta Carina Nebula, or NGC 3372) is a large bright nebula that surrounds several open clusters of stars. Eta Carinae and HD 93129A, two of the most massive and luminous stars in our Milky Way galaxy, are among them. The nebula lies at an estimated distance between 6,500 and 10,000 light years from Earth. It appears in the constellation of Carina, and is located in the Carina–Sagittarius Arm. The nebula contains multiple O-type stars.

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Hubble Galactic Image on Every Day Products iPad Mini Cover

Here's a great iPad case from Zazzle featuring a Hubble-related design. Maybe you'd like to see your name on it? Click to personalize and see what it's like!


tagged with: galaxy,hubble,image,space,spiral,beautiful,awesome

Beautiful and awe-inspiring Galactic image from the Hubble space telescope reprinted onto a wide range of products.

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Steam energy from the sun: New spongelike structure converts solar energy into steam

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A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.

via Science Daily

Fundamental photoresist chemistry findings could help extend Moore’s Law

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Over the years, computer chips have gotten smaller thanks to advances in materials science and manufacturing technologies. This march of progress, the doubling of transistors on a microprocessor roughly every two years, is called Moore’s Law. But there’s one component of the chip-making process in need of an overhaul if Moore’s law is to continue: the chemical mixture called photoresist. Similar to film used in photography, photoresist, also just called resist, is used to lay down the patterns of ever-shrinking lines and features on a chip. Paul Ashby and Deirdre Olynick of Berkeley Lab at the Advanced Light Source (ALS) Extreme Ultraviolet 12.0.1 Beamline. Credit: Roy Kaltschmidt, Berkeley Lab Now, in a bid to continue decreasing transistor size while increasing computation and energy efficiency, chip-maker Intel has partnered with researchers from the U.S. Department of Energy’s Lawrence Berkeley National Lab (Berkeley Lab) to design an entirely new kind of resist. And importantly, they have done so by characterizing the chemistry of photoresist, crucial to further improve performance in a systematic way. The researchers believe their results could be easily incorporated by companies that make resist, and find their way into manufacturing lines as early as 2017. The new resist effectively

The post Fundamental photoresist chemistry findings could help extend Moore’s Law has been published on Technology Org.

 
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Beautiful Heart of The Milky Way Galaxy Poster

Here's a great poster featuring a beautiful image from deep space


tagged with: nasa, galaxies, galaxy, space, prints, posters, poster, print, milky way, stars, nebula, fantasy, science fiction

A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA on Nov. 10. This event will commemorate the 400 years since Galileo first turned his telescope to the heavens in 1609. In celebration of this International Year of Astronomy, NASA is releasing images of the galactic center region as seen by its Great Observatories to more than 150 planetariums, museums, nature centers, libraries, and schools across the country. The sites will unveil a giant, 6-foot-by-3-foot print of the bustling hub of our galaxy that combines a near-infrared view from the Hubble Space Telescope, an infrared view from the Spitzer Space Telescope, and an X-ray view from the Chandra X-ray Observatory into one multiwavelength picture. Experts from all three observatories carefully assembled the final image from large mosaic photo surveys taken by each telescope. This composite image provides one of the most detailed views ever of our galaxy's mysterious core. Participating institutions also will display a matched trio of Hubble, Spitzer, and Chandra images of the Milky Way's center on a second large panel measuring 3 feet by 4 feet. Each image shows the telescope's different wavelength view of the galactic center region, illustrating not only the unique science each observatory conducts, but also how far astronomy has come since Galileo. The composite image features the spectacle of stellar evolution: from vibrant regions of star birth, to young hot stars, to old cool stars, to seething remnants of stellar death called black holes. This activity occurs against a fiery backdrop in the crowded, hostile environment of the galaxy's core, the center of which is dominated by a supermassive black hole nearly four million times more massive than our Sun. Permeating the region is a diffuse blue haze of X-ray light from gas that has been heated to millions of degrees by outflows from the supermassive black hole as well as by winds from massive stars and by stellar explosions. Infrared light reveals more than a hundred thousand stars along with glowing dust clouds that create complex structures including compact globules, long filaments, and finger-like "pillars of creation," where newborn stars are just beginning to break out of their dark, dusty cocoons.Courtesy: NASA.

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Carina Nebula, Star Forming Gas-cloud Sculpture Rectangle Sticker

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: billowing interstellar gas clouds, cnbigc, star forming activity, carina nebula, amazing space sculpture, star nurseries, stellar winds, young hot stars, gas cloud sculpture

Galaxies, Stars and Nebulae series A beautiful space photograph featuring the 7500 light year distant Carina Nebula. This Hubble image shows rich, interstellar gas clouds feeding the formation of new stars. As a proto star forms, the gas clouds get dragged to its surface and some gets emitted as tight jets of material travelling at hundreds of miles per second. These in turn help sculpt the gas clouds into weird and grotesque shapes, some looking like strange worms, swimming through space.

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image code: cnbigc

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA

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New mass map of distant galaxy cluster is most precise yet

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Astronomers have mapped the mass within a galaxy cluster more precisely than ever before. Created using observations from Hubble's Frontier Fields observing program, the map shows the amount and distribution of mass within MCS J0416.1-2403, a massive galaxy cluster found to be 160 trillion times the mass of the Sun.

via Science Daily

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Hubble finds three surprisingly dry exoplanets: 'Hot Jupiters' had only one-tenth to one one-thousandth the amount of water predicted

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Astronomers have gone looking for water vapor in the atmospheres of three planets orbiting stars similar to the Sun -- and have come up nearly dry. The three planets, known as HD 189733b, HD 209458b, and WASP-12b, are between 60 and 900 light-years away from Earth and were thought to be ideal candidates for detecting water vapor in their atmospheres because of their high temperatures where water turns into a measurable vapor.

via Science Daily

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Horsehead Nebula Room Decal

Here's a great wall decal featuring a beautiful image from deep space


tagged with: horsehead nebula, dark nebula, nebulae, space, astronomy, space exploration, universe, cosmic, milky way galaxy, outer space

A reproduction of a composite colour image of the Horsehead Nebula (also known as Barnard 33 in emission nebula IC 434) and its immediate surroundings. It's based on three exposures in the visual part of the spectrum with the FORS2 multi-mode instrument at the 8.2-m KUEYEN telescope at Paranal. The Horsehead Nebula is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest west on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Williamina Fleming.
Credit: ESO

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