Wednesday 17 December 2014

Atmospheric carbon dioxide used for energy storage products

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Chemists and engineers at Oregon State University have discovered a fascinating new way to take some of the

The post Atmospheric carbon dioxide used for energy storage products has been published on Technology Org.

 
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The hot blue stars of messier 47

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Messier 47 is located approximately 1600 light-years from Earth, in the constellation of Puppis (the poop deck of the mythological ship Argo). It was first noticed some time before 1654 by Italian astronomer Giovanni Battista Hodierna and was later independently discovered by Charles Messier himself, who apparently had no knowledge of Hodierna's earlier observation. Although it is bright and easy to see, Messier 47 is one of the least densely populated open clusters. Only around 50 stars are visible in a region about 12 light-years across, compared to other similar objects which can contain thousands of stars.

via Science Daily

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Massive volcanic eruptions set the stage for dinosaurs’ demise

Science Focus

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It's now widely accepted that the impact of an asteroid at Chicxulub in Mexico's Yucatan region finished off any dinosaurs that we don't currently refer to as birds, while triggering a mass extinction that wiped out a lot of other species. But that hasn't ended the debate regarding the dynamics of the extinction event, with other ecological influences getting consideration as contributing to the dinosaurs' vulnerability.

One potential contributor that's hard to overlook is situated in western India: the Deccan Traps. These enormous deposits are built of layer upon layer of volcanic rock, suggesting a series of flood eruptions took place over thousands of years. These eruptions happened suspiciously close to the start of the mass extinction—close enough that some researchers argued that it was the eruptions that killed off the dinosaurs. There was, after all, precedent; the eruptions that formed the Siberian Traps have been blamed for a mass extinction that was so severe, it's known as the The Great Dying.

To help settle the issue, an international team of researchers has gone back and obtained the most precise dates for the eruptions yet. The dates show that the eruptions started nearly a quarter-million years before the onset of the mass extinction but continued for roughly 750,000 years, meaning they spanned the extinction event. This supports the idea that the eruptions helped set the stage for the end of the dinosaurs.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/w2aesvy99AI/
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NIST Report and Video Detail Dynamics of Deadly Chicago House Fire

Science Focus

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A new National Institute of Standards and Technology (NIST) computer-modeling study of a 2012 Chicago house fire reveals

The post NIST Report and Video Detail Dynamics of Deadly Chicago House Fire has been published on Technology Org.

 
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 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/oSe6w72B6gs/
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Attack on classical cryptography system raises security questions

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(Phys.org)—How secure is completely secure? In the world of secure communication, a scheme may be completely secure until it's not—that is, until an attack is proposed that reveals a weak spot in the scheme. This is what's currently going on for Kish key distribution (KKD), which claims to derive total and unconditional security using classical rather than quantum techniques, thus avoiding the complexity and expense of quantum cryptographic schemes. But now a new paper has uncovered a vulnerability in KKD that enables an eavesdropper to correctly determine more than 99.9% of the transmitted bits. Fortunately, countermeasures may exist to protect against this attack and regain the system's security.



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Geminid Fireball over Mount Balang

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Zazzle Space Gifts for young and old

Orion Nebula and Trapezium Stars Sticker

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tagged with: envelope sealers, ornebcsfr, awesome astronomy images, orion nebula, emission nebula, trapezium stars, emission nebulae, hot young stars, star nursery, new born stars, dust clouds

Galaxies, Stars and Nebulae series A gorgeous picture from the deep universe featuring the bubbling, seething mass of gas and dust that is the Orion Nebula, 1500 light years away and the closest star-forming region to us. The nebula is a star nursery in which there are birthing, new-born, young and adult stars. Look carefully in the brightest central region and you'll see the Trapezium, four of the most massive stars in Orion.

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Image credit: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team

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LHC filling with liquid helium at 4 kelvin

Witch Head Nebula deep space astronomy image Room Decal

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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 code: wtchneb

Image credit: NASA/JPL-Caltech

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"Hubble Space Telescope" iPad Mini Cases

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Hubble Space Telescope

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The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

The hot blue stars of Messier 47

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Messier 47 is located approximately 1600 light-years from Earth, in the constellation of Puppis (the poop deck of the mythological ship Argo). It was first noticed some time before 1654 by Italian astronomer Giovanni Battista Hodierna and was later independently discovered by Charles Messier himself, who apparently had no knowledge of Hodierna's earlier observation.



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Proteins off the roll

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Protein-coated Petri dishes are increasingly being used to support cell growth during cell cultivation. Scientists have developed a

The post Proteins off the roll has been published on Technology Org.

 
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MESSENGER data suggest recurring meteor shower on Mercury

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The closest planet to the sun appears to get hit by a periodic meteor shower, possibly associated with a comet that produces multiple events annually on Earth. The clues pointing to Mercury's shower were discovered in the very thin halo of gases that make up the planet's exosphere, which is under study by NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft.

via Science Daily

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NASA Goddard instrument makes first detection of organic matter on Mars

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Scientists have made the first definitive detection of organic molecules at Mars. The surface of Mars is currently inhospitable to life as we know it, but there is evidence that the Red Planet once had a climate that could have supported life billions of years ago.

via Science Daily

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Full Moon in White Sky Large Poster

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High Resolution Full Moon on white background

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Merging Galaxies - The Antennae Galaxies Star Sticker

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Galaxies, Stars and Nebulae series A stunning outer space picture featuring two merging galaxies, known as the Antennae Galaxies - NGC4038 and NGC4039. As these galaxies hurtle through each other, billions of new stars are forced to precipitate out of the gas and dust clouds by the bunching and heating that's caused by the massive gravitic interactions. These tend to occur in clusters, the brightest and most condensed of them being known as super star clusters.

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image code: agmcssc

Image credit: NASA, ESA, and the Hubble Heritage Team STScI/AURA)-ESA/Hubble Collaboration. Acknowledgement: B. Whitmore ( Space Telescope Science Institute) and James Long (ESA/Hubble).

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The simplest element: Turning hydrogen into 'graphene'

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New work delves into the chemistry underlying some surprising recent observations about hydrogen, and reveals remarkable parallels between hydrogen and graphene under extreme pressures.

via Science Daily

Future batteries: Lithium-sulfur with a graphene wrapper

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What do you get when you wrap a thin sheet of the "wonder material" graphene around a novel multifunctional sulfur electrode that combines an energy storage unit and electron/ion transfer networks? An extremely promising electrode structure design for rechargeable lithium-sulfur batteries.

via Science Daily