Wednesday 20 August 2014

Scarcity of elements in products like smartphones needs addressing, say scientists

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Many of today’s technological innovations from the iPhone to electric motors for hybrid cars require the use of materials — elements — that are scarce or difficult to obtain. As demand for these devices grows, the problem of dwindling critical element supplies must be addressed. That’s the conclusion of a white paper written by eminent scientists. The product of the 5th Chemical Sciences and Society Summit (CS3), the white paper recommends focusing research on finding alternative materials and new approaches to technology development in order to prevent these elements from disappearing. The white paper, “The Efficient Use of Elements,” is a topic of discussion at this year’s the 248th National Meeting & Exposition of the American Chemical Society (ACS), the world’s largest scientific society. The meeting features nearly 12,000 reports on new advances in science and other topics. It is being held here through Thursday. Technology advances made in the past few decades are resulting in unprecedented levels of comfort and convenience, improved medical diagnostics and treatment, more efficient transportation and rapid access to quantities of information that, a generation ago, were unimaginable. Much of this new technology, however, is heavily dependent on the excavation and use of scarce elements. For example, smartphones

The post Scarcity of elements in products like smartphones needs addressing, say scientists has been published on Technology Org.

 
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First LOFAR observations of 'Whirlpool Galaxy'

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Using a radio telescope with frequencies just above those of commercial FM radio stations, a European team of astronomers has obtained the most sensitive image of a galaxy below 1 GHz.

via Science Daily

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A spectacular landscape of star formation

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A new image shows two dramatic star formation regions in the southern Milky Way. The first is of these, on the left, is dominated by the star cluster NGC 3603, located 20,000 light-years away, in the Carina–Sagittarius spiral arm of the Milky Way galaxy. The second object, on the right, is a collection of glowing gas clouds known as NGC 3576 that lies only about half as far from Earth.

via Science Daily

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Swirling electrons in the whirlpool galaxy

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The whirlpool galaxy Messier 51 (M51) is seen from a distance of approximately 30 million light years. This galaxy appears almost face-on and displays a beautiful system of spiral arms.



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Everything you need to know about fracking

Science Focus

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Recently in New York City, protesters took to the boardwalk in the Rockaways to voice opposition to the Rockaway Lateral Project, which aims to install a pipeline under New York City's Jacob Riis and Fort Tilden beaches to connect two existing natural gas distribution systems. The pipeline, controlled by Williams Partners L.P., will allow fracked natural gas from the Marcellus Shale, in Pennsylvania, to flow to a new meter and regulator station at Floyd Bennett Field, in Brooklyn, and then into the current distribution lines running up Flatbush Avenue. The evidence for environmental damages caused...

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 » see original post http://theweek.com/article/index/266557/everything-you-need-to-know-about-fracking
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'Stem cells used in stroke therapy'

Science Focus

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A pilot study suggests an experimental treatment that involves infusing stem cells into the brain may boost recovery after stroke. 
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 » see original post http://www.bbc.co.uk/news/health-28694656#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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Meet the Mariah Carey of bats

Science Focus

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In the dead of night, when it's dark enough that you or I might not be able to see our hands in front of our faces, some bats have no trouble tracking down a small, flitting insect and making a meal of it. Their secret? A biological sonar called echolocation.

By pushing air through their larynxes and out of their mouths or noses, echolocating bats generate ultrasonic "chirps." The echoes that bounce back to their ears give the bats the lay of the land and the sky, revealing obstacles and prey.

Bats that hunt like this are usually classified in one of two groups. There are the "gleaners" that...

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 » see original post http://theweek.com/article/index/264297/meet-the-mariah-carey-of-bats
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In the Center of the Lagoon Nebula

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Martian meteorite: Implications of a newly discovered mineral-rich structure

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A new ovoid structure discovered in the Nakhla Martian meteorite is made of nanocrystalline iron-rich clay, contains a variety of minerals, and shows evidence of undergoing a past shock event from impact, with resulting melting of the permafrost and mixing of surface and subsurface fluids.

via Science Daily

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Immune system is dazed and confused during spaceflight, study reveals

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Research indicates that crew members aboard the International Space Station have changes in blood cytokines that persist during flight.

via Science Daily

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Boomerang Nebula Hubble Astronomy Wall Graphic

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


tagged with: boomerang nebula, nebula, stars, nasa, astronomy, universe, outer space, hubble telescope, nature, cool space, nebulae, esa, hubble space telescope, hubble photo, cosmos, astronomical, astrophotography, cosmology, deep space, space, natural, science, space picture, space photo, space image, nebula picture, nebula photo, nebula image, blue, cool astronomy

Hubble photograph of the Boomerang Nebula

This photograph of the Boomerang Nebula was taken by the Hubble Space Telescope in 1998. It shows the bow-tie-shaped nebula in beautiful bright blue and white colours, against a dark starry background.

Credit: NASA, ESA, R. Sahai and J. Trauger (Jet Propulsion Laboratory) and the WFPC2 Science Team

You can personalise the design further if you'd prefer, such as by adding your name or other text, or adjusting the image - just click 'Customize it' to see all the options. IMPORTANT: If you choose a different sized version of the product, it's important to click Customize and check the image in the Design view to ensure it fills the area to the edge of the product, otherwise white edges may be visible.

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Researchers build first 3D magnetic logic gate

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Magnetic force microscope images of the 3D magnetic logic gates, each containing three input magnets and one output magnet. Numbers show the magnetization states of the output magnet for all input configurations. Credit: Eichwald, et al. ©2014 IOP The integrated circuits in virtually every computer today are built exclusively from transistors. But as researchers are constantly trying to improve the density of circuits on a chip, they are looking at alternative ways to build circuits. One alternative method uses nano-sized magnets, in which the magnets possess two stable magnetic states that represent the logic states “0″ and “1.” Until now, nanomagnetic logic (NML) has been implemented only in two dimensions. Now for the first time, a new study has demonstrated a 3D programmable magnetic logic gate, where the magnets are arranged in a 3D manner. In comparison to the 2D gate, the 3D arrangement of the magnets allows for an increase in the field interaction between neighboring magnets and offers higher integration densities. The researchers, Irina Eichwald, et al., at the Technical University of Munich in Munich, Germany; and the University of Notre Dame in Notre Dame, Indiana, US, have published their paper on the 3D magnetic logic gate in

The post Researchers build first 3D magnetic logic gate has been published on Technology Org.

 
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The grass really is greener on TV and computer screens, thanks to quantum dots

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Quantum dots make greens and reds pop on screens (left) compared with other types of displays (right). Credit: Credit: 3M High-tech specks called quantum dots could bring brighter, more vibrant color to mass market TVs, tablets, phones and other displays. Today, a scientist will describe a new technology called 3M quantum dot enhancement film (QDEF) that efficiently makes liquid crystal display (LCD) screens more richly colored.   His talk will be one of nearly 12,000 presentations at the 248th National Meeting & Exposition of the American Chemical Society (ACS) taking place here through Thursday. “Green grass just pops out at you from these displays,” says Eric Nelson, Ph.D., who helped create the plastic films that hold the quantum dots in a screen. “We believe this is the most efficient way to get to a high-color display.” That’s because quantum dot, or “QD,” displays need less energy compared to other high-color options. QDs are superconducting crystals so small that 10,000 could fit across the width of a human hair. Read more at: Phys.org  

The post The grass really is greener on TV and computer screens, thanks to quantum dots has been published on Technology Org.

 
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Trifid Nebula, Messier 16 Sticker

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


tagged with: breathtaking astronomy images, star forming nebulae, trfdnbl, star nurseries, galaxies, nebulae, star factory, trifid nebula, european southern observatory, clusters of stars, factories for stars, eso, vista

Galaxies, Stars and Nebulae series A fantastic picture from our universe featuring the massive star factory known as the Trifid Nebula.

It was captured in all its glory with the Wide-Field Imager camera attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile.
So named for the dark dust bands that trisect its glowing heart, the Trifid Nebula is a rare combination of three nebulae types that reveal the fury of freshly formed stars and point to more star birth in the future. The field of view of the image is approximately 13 x 17 arcminutes.
It's an awe-inspiring, breathtaking image that reveals some of the wonder that is our universe.

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image code: trfdnbl

ESO/J. Emerson/VISTA www.eso.org
Reproduced under the Creative Commons Attribution 3.0 Unported license.

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Boomerang Nebula Hubble Astronomy Wall Skins

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


tagged with: boomerang nebula, nebula, stars, nasa, astronomy, universe, outer space, hubble telescope, nature, cool space, nebulae, esa, hubble space telescope, hubble photo, cosmos, astronomical, astrophotography, cosmology, deep space, space, natural, science, space picture, space photo, space image, nebula picture, nebula photo, nebula image, blue, cool astronomy

Hubble photograph of the Boomerang Nebula

This photograph of the Boomerang Nebula was taken by the Hubble Space Telescope in 1998. It shows the bow-tie-shaped nebula in beautiful bright blue and white colours, against a dark starry background.

Credit: NASA, ESA, R. Sahai and J. Trauger (Jet Propulsion Laboratory) and the WFPC2 Science Team

You can personalise the design further if you'd prefer, such as by adding your name or other text, or adjusting the image - just click 'Customize it' to see all the options. IMPORTANT: If you choose a different sized version of the product, it's important to click Customize and check the image in the Design view to ensure it fills the area to the edge of the product, otherwise white edges may be visible.

See more in my shop
If you like this product, you can find more like it in my store:

Click here to view all the other items with this design.

Click here to see a wide range of other astronomy & space designs.

»visit the AstronomyGiftShop store for more designs and products like this
Click to customize.
via Zazzle Astronomy market place

Graphene rubber bands could stretch limits of current healthcare, new research finds

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A new type of sensor that can monitor body movements and could help revolutionize healthcare is described in a new study. "These sensors are extraordinarily cheap compared to existing technologies. Each device would probably cost pennies, making it ideal technology for use in developing countries where there are not enough medically trained staff to effectively monitor and treat patients quickly," researchers said.

via Science Daily

The Crab Nebula from the Hubble Space Telescope Cover For The iPad Mini

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: nebula, crab, space, astronomy, hubble, crab nebula, hubble telescope, outer space

This is a mosaic image, one of the largest ever taken by NASA's Hubble Space Telescope of the Crab Nebula, a six-light-year-wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra-dense core of the exploded star. The Crab Nebula derived its name from its appearance in a drawing made by Irish astronomer Lord Rosse in 1844, using a 36-inch telescope. When viewed by Hubble, as well as by large ground-based telescopes such as the European Southern Observatory's Very Large Telescope, the Crab Nebula takes on a more detailed appearance that yields clues into the spectacular demise of a star, 6,500 light-years away. The newly composed image was assembled from 24 individual Wide Field and Planetary Camera 2 exposures taken in October 1999, January 2000, and December 2000. The colors in the image indicate the different elements that were expelled during the explosion. Blue in the filaments in the outer part of the nebula represents neutral oxygen, green is singly-ionized sulfur, and red indicates doubly-ionized oxygen. Sign up to Mr. Rebates for FREE and save 12% on any zazzle order in addition to a $5.00 sign up bonus All Rights Reserved; without: prejudice, recourse or notice (U.C.C. 1-308) http://commons.wikimedia.org/wiki/File:Crab_Nebula.jpg nebula crab space astronomy hubble "crab nebula" "hubble telescope" "outer space"

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