Sunday 12 October 2014

NIST Scientists Improve Microscopic Batteries with Homebuilt Imaging Analysis

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In a rare case of having their cake and eating it too, scientists from the National Institute of

The post NIST Scientists Improve Microscopic Batteries with Homebuilt Imaging Analysis has been published on Technology Org.

 
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Horse head Nebula Poster

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


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The Horsehead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head when viewed from Earth.

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You can bring a fly to water…but is it rewarding for it to drink?

Science Focus

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I needed a bit of food, but do i find this red stuff rewarding?

Scott Waddell, at Oxford's Centre for Neural Circuits and Behavior, is interested in Big Ideas like memory and motivation—and not necessarily in thirsty flies. But in trying to understand the former, he has spent a lot of time studying the latter.

Reward systems depend on both obtaining a resource and learning to appreciate it. Drinking water is rewarding to thirsty animals, but only because the act of drinking impacts the nervous system and controls water-seeking behavior. How it manages to do so has been largely unexplored.

In the case of flies, thirst completely rewires behavior. Water-sated flies avoid water; only those that have been deprived for at least six hours gravitate towards it. Waddell's group demonstrated that a specific subset of dopamine-using neurons are required for thirst to induce flies to value water, and that this valuation depends on the flies' sensing of water vapor.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/6r8KvTkyf7Y/
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Cornell theorists continue the search for supersymmetry

Science Focus

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Csaba Csaki and colleagues theorize a possible solution to a longstanding mystery bolstered by the recent discovery of

The post Cornell theorists continue the search for supersymmetry has been published on Technology Org.

 
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 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/Imqn4XZqsVc/
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VIDEO: Up close with Curiosity Mars rover

Science Focus

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BBC Click gets rare access to the twin of Nasa's Curiosity Mars rover which is helping scientists solve problems on the Red Planet. 
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 » see original post http://www.bbc.co.uk/news/technology-29522596#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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Crab Pulsar Time Lapse - Neutron Star Stickers

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


tagged with: stars, galaxies, astronomy, envelope sealers, tarnebes, tarantula nebula, r136, massive stars, youngest stars, supernovae

Galaxies, Stars and Nebulae series

Multiple observations made over several months with NASA's Chandra X-ray Observatory and the Hubble Space Telescope captured the spectacle of matter and antimatter propelled to near the speed of light by the Crab pulsar, a rapidly rotating neutron star the size of Manhattan.

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Image code: crbplsr

Image credit: NASA's Chandra X-ray Observatory and the Hubble Space Telescope

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Name, Crab Nebula in Taurus outer space picture Gift Wrap Paper

Get your out-of-this-world gift wrap here! Perfect for Christmas gifts for anyone who is fascinated by what the universe holds in store for us!


tagged with: messier 1, neutron stars, star ejecta, pulsars, supernovae explosions, supernova remnant, crbneb, astronomy pictures, outer space images, crab nebula, heavens, european southern observatory, eso, vista

Galaxies, Stars and Nebulae series A great outer space picture featuring a three colour composite of the well-known Crab Nebula (also known as Messier 1), as observed with the FORS2 instrument in imaging mode in the morning of November 10, 1999.
It's the remnant of a supernova explosion at a distance of about 6,000 light-years, observed almost 1,000 years ago, in the year 1054. It contains a neutron star near its center that spins 30 times per second around its axis (see below).
In this picture, the green light is predominantly produced by hydrogen emission from material ejected by the star that exploded. The blue light is predominantly emitted by very high-energy ("relativistic") electrons that spiral in a large-scale magnetic field (so-called synchrotron emission). It's believed that these electrons are continuously accelerated and ejected by the rapidly spinning neutron star at the centre of the nebula and which is the remnant core of the exploded star.
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image code: crbneb

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

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The Helix Nebula from Blanco and Hubble

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Zazzle Space Gifts for young and old

Hubble Telescope over Earth

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!


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Hubble Telescope Over Earth image source: NASA

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Study: water in plastic bottles kept warm is less healthy than cold

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Nowadays plastic plays a really important role in almost every aspect of our lives. This material plays an indispensable

The post Study: water in plastic bottles kept warm is less healthy than cold has been published on Technology Org.

 
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NASAs SN1994D Nebula Print

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


tagged with: astronomy, space, nasa, nebula, galaxy, best, unique, original, quality, custom, affordable, photography, gift, popular, science, planet, space exploration, solar system, outer space, deep space, space age, space design, space image, space travel, space shuttle, space telescope, space and time, space race, space center, space time, universe, mystical, laureen, laureenr

Supernova discoveries are reported to the International Astronomical Union's Central Bureau for Astronomical Telegrams, which sends out a circular with the name it assigns to it. The name is the year of discovery, immediately followed by a one or two-letter designation. The first 26 supernovae of the year are designated with a capital letter from A to Z. Afterward pairs of lower-case letters are used: aa, ab, and so on.[36] Since 2000, professional and amateur astronomers find several hundreds of supernovae each year (572 in 2007, 261 in 2008, 390 in 2009). For example, the last supernova of 2005 was SN 2005nc, indicating that it was the 367th[nb 1] supernova found in 2005.[37][38] Historical supernovae are known simply by the year they occurred: SN 185, SN 1006, SN 1054, SN 1572 (Tycho's Nova) and SN 1604 (Kepler's Star). Since 1885 the letter notation has been used, even if there was only one supernova discovered that year (e.g. SN 1885A, 1907A, etc.)—this last happened with SN 1947A. "SN", for SuperNova, is a standard prefix. Until 1987, two-letter designations were rarely needed; since 1988, however, they have been needed every year.

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Crab Pulsar Time Lapse - Neutron Star Sticker

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


tagged with: stars, galaxies, astronomy, tarnebes, tarantula nebula, r136, massive stars, youngest stars, supernovae

Galaxies, Stars and Nebulae series

Multiple observations made over several months with NASA's Chandra X-ray Observatory and the Hubble Space Telescope captured the spectacle of matter and antimatter propelled to near the speed of light by the Crab pulsar, a rapidly rotating neutron star the size of Manhattan.

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Image code: crbplsr

Image credit: NASA's Chandra X-ray Observatory and the Hubble Space Telescope

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Name, Dumbbell Nebula, Intriguing Outer Space Gift Wrap

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tagged with: inspirational, dmbblneb, vulpecula constellation, intense ultraviolet radiation, heavens, dumbbell nebula, star galaxies, the fox constellation, outer space, astronomy pictures, european southern observatory, messier 27 ngc 6853, eso, vista

Galaxies, Stars and Nebulae series A great photo from deep space featuring the Dumbbell Nebula - also known as Messier 27 or NGC 6853. It's a typical planetary nebula and is located in the constellation Vulpecula (The Fox).
The distance is rather uncertain, but is believed to be around 1,200 light-years. It was first described by the French astronomer and comet hunter Charles Messier who found it in 1764 and included it as no. 27 in his famous list of extended sky objects.
Despite its class, the Dumbbell Nebula has nothing to do with planets. It consists of very rarefied gas that has been ejected from the hot central star (well visible on this photo), now in one of the last evolutionary stages. The gas atoms in the nebula are excited (heated) by the intense ultraviolet radiation from this star and emit strongly at specific wavelengths.
This image is the beautiful by-product of a technical test of some FORS1 narrow-band optical interference filters. They only allow light in a small wavelength range to pass and are used to isolate emissions from particular atoms and ions.
In this three-colour composite, a short exposure was first made through a wide-band filter registering blue light from the nebula. It was then combined with exposures through two interference filters in the light of double-ionized oxygen atoms and atomic hydrogen. They were colour-coded as “blue”, “green” and “red”, respectively, and then combined to produce this picture that shows the structure of the nebula in “approximately true” colours.
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ESO/J. Emerson/VISTA www.eso.org
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Monogram Barred Spiral Galaxy NGC 1672 iPad Folio Case

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: monogram initials, star galaxies, deep space astronomy, barred spiral galaxy, starry space picture, galactic arms, supermassive black hole, dust lanes, star forming galaxy, hrbstslr bsgsst

Galaxies, Stars and Nebulae series This NASA Hubble Space Telescope view of the nearby barred spiral galaxy NGC 1672 unveils details in the galaxy's star-forming clouds and dark bands of interstellar dust.
One of the most striking features is the dust lanes that extend away from the nucleus and follow the inner edges of the galaxy's spiral arms. Clusters of hot young blue stars form along the spiral arms and ionize surrounding clouds of hydrogen gas that glow red. Delicate curtains of dust partially obscure and redden the light of the stars behind them by scattering blue light.
Galaxies lying behind NGC 1672 give the illusion they are embedded in the foreground galaxy, even though they are really much farther away. They also appear reddened as they shine through NGC 1672's dust. A few bright foreground stars inside our own Milky Way Galaxy appear in the image as bright and diamond-like objects.
As a prototypical barred spiral galaxy, NGC 1672 differs from normal spiral galaxies, in that the arms do not twist all the way into the center. Instead, they are attached to the two ends of a straight bar of stars enclosing the nucleus. Viewed nearly face on, NGC 1672 shows intense star formation regions especially off in the ends of its central bar.
Astronomers believe that barred spirals have a unique mechanism that channels gas from the disk inward towards the nucleus. This allows the bar portion of the galaxy to serve as an area of new star generation.
NGC 1672 is also classified as a Seyfert galaxy. Seyferts are a subset of galaxies with active nuclei. The energy output of these nuclei can sometimes outshine their host galaxies. This activity is powered by accretion onto supermassive black holes.
NGC 1672 is more than 60 million light-years away in the direction of the southern constellation Dorado. These observations of NGC 1672 were taken with Hubble's Advanced Camera for Surveys in August of 2005. The composite image was made by using filters that isolate light from the blue, green, and infrared portions of the spectrum, as well as emission from ionized hydrogen.
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Image credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)-ESA/Hubble Collaboration

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