Tuesday 26 May 2015

Chemical tags in ear bones track Alaska’s Bristol Bay salmon

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A chemical signature recorded on the ear bones of Chinook salmon from Alaska’s Bristol Bay region could tell

The post Chemical tags in ear bones track Alaska’s Bristol Bay salmon has been published on Technology Org.

 
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A solar eclipse sheds light on physics

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On 29 May 1919, a shadow dance took place over the Caribbean which was to make history: While the new moon covered the blazingly bright disk of the Sun, astronomers around Arthur Stanley Eddington measured the shift of stars which showed up in the dark sky right next to the totally eclipsed Sun. The result actually did correspond very accurately with what Albert Einstein had predicted less than four years before in his General Theory of Relativity. "Revolution in Science" was the headline in the London Times of November 1919. What was the reason for this euphoria? How did the confirmation of a new scientific view of the world come about?

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Monitoring magnetospheres: Debunking theory behind massive stars

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Students researching magnetic, massive stars, have uncovered questions concerning the behavior of plasma within their magnetospheres.
via Science Daily
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Tesla Energy’s goal? Changing the “energy infrastructure of the world”

Science Focus

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Tesla CEO Elon Musk formally announced last week that his electric car company will spin off a new battery business. Tesla Energy—now distinct from Tesla Motors—will manufacture lithium ion batteries for households and businesses that can be used to augment solar or wind-powered systems, or just to provide an extra layer of redundancy for customers connected to the traditional grid.

But over the next several years, Tesla's consumer-grade batteries may not make much financial sense for households in many places around the US. Unless traditional power is very expensive in your state (as it is in Hawaii), it's likely cheaper to stay on the grid when the sun goes down every day, especially if utilities buy back excess solar from rooftop systems (as they do in California). And though consumers might want batteries to use as backup electricity, for a multi-day emergency scenario a generator can still deliver more power for less money. So what's Tesla Energy's business model?

Consumer batteries have garnered most of the media's attention, but Musk admitted in an earnings call this week that Tesla Energy's near-term target demographic is actually business and utilities. “We expect most of our stationary storage sales to be at the utility or industrial scale,” is how he phrased it.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/hzHe76rwJYI/
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Researchers build new fermion microscope

Science Focus

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Fermions are the building blocks of matter, interacting in a multitude of permutations to give rise to the

The post Researchers build new fermion microscope has been published on Technology Org.

 
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 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/PlyZABrsQ6k/
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Omega Nebula - Our Amazing Universe Oval Sticker

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


tagged with: omgneb, star forming regions, omega nebula, uplifting, messier 17, stars, hrbstslr, galaxies, outer space, universe, awesome astronomy images, ngc 6618, inspirational, heavens, european southern observatory, eso, vista

Galaxies, Stars and Nebulae series A great outer space picture featuring a three-colour composite image of the Omega Nebula (Messier 17, or NGC 6618), based on images obtained with the EMMI instrument on the ESO 3.58-metre New Technology Telescope at the La Silla Observatory. North is down and East is to the right in the image. It spans an angle equal to about one third the diameter of the Full Moon, corresponding to about 15 light-years at the distance of the Omega Nebula. The three filters used are B (blue), V ("visual", or green) and R (red).

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Carbon nanothreads from compressed benzene

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The thinnest possible linear thread that still retains a diamond-like structure was created by the extreme compression and decompression of the common chemical benzene. The threads may have outstanding mechanical and electronic properties. Further, the synthesis method opens up possible variations that could lead to new materials.
via Science Daily

Celestial Bauble, Nebula N90 and Pulsar SXP1062 Wrapping Paper

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tagged with: sculptured gas clouds, hot young stars, star galaxies, outer space picture, supernova remnant, star factory, small magellanic cloud, smc, celestial bauble, hrbstslr sxp1062, star incubator

Galaxies, Stars and Nebulae series: In this composite image, X-rays from Chandra and XMM-Newton have been colored blue and optical data from the Cerro Tololo Inter-American Observatory in Chile are colored red and green. The flowering shape is a star factory and the bright blue star is the pulsar, known as SXP 1062. Astronomers are interested in SXP 1062 because it's spinning unusually slowly - about once every 18 minutes. (In contrast, some pulsars are found to revolve up to 1000 times per second)
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Image credit: X-ray: NASA/CXC/Univ.Potsdam/L.Oskinova et al & ESA/XMM-Newton; Optical: AURA/NOAO/CTIO/Univ.Potsdam/L.Oskinova et al

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Selfies with Earth

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Space Science Image of the Week: Fifteen years ago, XMM-Newton took a series of mesmerising self-portraits with our planet
via ESA Space Science
http://www.esa.int/spaceinimages/Images/2015/05/XMM-Newton_self-portraits_with_planet_Earth

Starburst Galaxy M94

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Zazzle Space Gifts for young and old

NGC 602 bright stars 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: nasa, space, astronomy, shuttle, hubble, bright, star, starry, blue, nebula

NGC 602 is a young, bright open cluster of stars located in the Small Magellanic Cloud (SMC), a satellite galaxy to the Milky Way. Radiation and shock waves from the stars have pushed away much of the lighter surrounding gas and dust that compose the nebula known as N90, and this in turn has triggered new star formation in the ridges (or "elephant trunks") of the nebula.

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Within colors of bees and butterflies, an optical engineer’s dream is realized

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Evolution has created in bees, butterflies, and beetles something optical engineers have been struggling to achieve for years

The post Within colors of bees and butterflies, an optical engineer’s dream is realized has been published on Technology Org.

 
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Researchers hone technique for finding signs of life on the Red Planet

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For centuries, people have imagined the possibility of life on Mars. But long-held dreams that Martians could be

The post Researchers hone technique for finding signs of life on the Red Planet has been published on Technology Org.

 
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Dumbbell Nebula in Taurus Oval Sticker

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


tagged with: awesome astronomy images, inspirational, dmbblneb, vulpecula constellation, intense ultraviolet radiation, messier 27 ngc 6853, heavens, stars, dumbbell nebula, the fox constellation, european southern observatory, 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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Name, Cassiopeia, Milky Ways Youngest Supernova Gift Wrapping Paper

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tagged with: star galaxies, outer space picture, supernova explosion, supernovae remnant, milky way youngest supernova, cosmic ray, neutron star, cassasn, deep space astronomy, cassiopeia

Galaxies, Stars and Nebulae series This extraordinarily deep Chandra image shows Cassiopeia A (Cas A, for short), the youngest supernova remnant in the Milky Way. New analysis shows that this supernova remnant acts like a relativistic pinball machine by accelerating electrons to enormous energies. The blue, wispy arcs in the image show where the acceleration is taking place in an expanding shock wave generated by the explosion. The red and green regions show material from the destroyed star that has been heated to millions of degrees by the explosion.
Astronomers have used this data to make a map, for the first time, of the acceleration of electrons in a supernova remnant. Their analysis shows that the electrons are being accelerated to almost the maximum theoretical limit in some parts of Cas A. Protons and ions, which make up the bulk of cosmic rays, are expected to be accelerated in a similar way to the electrons. Therefore, this discovery provides strong evidence that supernova remnants are key sites for energizing cosmic rays.
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Image credit: NASA/CXC/MIT/UMass Amherst/M.D. Stage et al.

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The Active Cigar Galaxy - Messier 82 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: agmet, hubble, cigar galaxy, active galaxies, hubble space photography, outer space, stars, cosmological, messier 82, astronomy pictures, chandra

Galaxies, Stars and Nebulae series Composite of images of the active galaxy Messier 82 from the three Great Observatories: Hubble Space Telescope, Chandra X-Ray Observatory, and Spitzer Space Telescope. X-ray data recorded by Chandra appears here in blue, infrared light recorded by Spitzer appears in red. Hubble's observation of hydrogen emission appears in orange. Hubble's bluest observation appears in yellow-green.
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Image credit: Hubble Space Telescope, Chandra X-Ray Observatory, Spitzer Space Telescope

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Witch Head Nebula deep space astronomy image Room Decal

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


tagged with: star galaxies, outer space picture, deep space astronomy, wtchneb, witch head nebula, screaming witch, cursing witch, nasa space photograph, faces in space, witches curse

Galaxies, Stars and Nebulae series A witch appears to be screaming out into space in this image from NASA's Wide-Field Infrared Survey Explorer, or WISE. The infrared portrait shows the Witch Head nebula, named after its resemblance to the profile of a wicked witch. Astronomers say the billowy clouds of the nebula, where baby stars are brewing, are being lit up by massive stars. Dust in the cloud is being hit with starlight, causing it to glow with infrared light, which was picked up by WISE's detectors.
The Witch Head nebula is estimated to be hundreds of light-years away in the Orion constellation, just off the famous hunter's knee.
WISE was recently "awakened" to hunt for asteroids in a program called NEOWISE. The reactivation came after the spacecraft was put into hibernation in 2011, when it completed two full scans of the sky, as planned.
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Image credit: NASA/JPL-Caltech

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Stellar Nursery R136 in the Tarantula Nebula iPad Cases

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: astronomy, stellar nursery, massive stars, star cluster, tarantula nebula, hubble, galaxy stars, cosmological, 30 doradus nebula, hrbstslr dorneblmc, large magellanic cloud, r136, amazing hubble images, nebulae

Galaxies, Stars and Nebulae series Hundreds of brilliant blue stars wreathed by warm, glowing clouds in appear in this the most detailed view of the largest stellar nursery in our local galactic neighborhood. The massive, young stellar grouping, called R136, is only a few million years old and resides in the 30 Doradus (or Tarantula) Nebula, a turbulent star-birth region in the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way.
There is no known star-forming region in our galaxy as large or as prolific as 30 Doradus. Many of the diamond-like icy blue stars are among the most massive stars known. Several of them are over 100 times more massive than our Sun. These hefty stars are destined to pop off, like a string of firecrackers, as supernovas in a few million years. The image, taken in ultraviolet, visible, and red light by Hubble's Wide Field Camera 3, spans about 100 light-years.
The movement of the LMC around the Milky Way may have triggered the massive cluster's formation in several ways. The gravitational tug of the Milky Way and the companion Small Magellanic Cloud may have compressed gas in the LMC. Also, the pressure resulting from the LMC plowing through the Milky Way's halo may have compressed gas in the satellite. The cluster is a rare, nearby example of the many super star clusters that formed in the distant, early universe, when star birth and galaxy interactions were more frequent.
The LMC is located 170,000 light-years away and is a member of the Local Group of Galaxies, which also includes the Milky Way. The Hubble observations were taken Oct. 20-27, 2009. The blue color is light from the hottest, most massive stars; the green from the glow of oxygen; and the red from fluorescing hydrogen.
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Image credit: Hubble's Wide Field Camera 3

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