Tuesday 22 July 2014

Rice’s silicon oxide memories catch manufacturers’ eye

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Rice University’s breakthrough silicon oxide technology for high-density, next-generation computer memory is one step closer to mass production, thanks to a refinement that will allow manufacturers to fabricate devices at room temperature with conventional production methods. This scanning electron microscope image and schematic show the design and composition of new RRAM memory devices based on porous silicon oxide that were created at Rice University. Credit: Tour Group/Rice University First discovered five years ago, Rice’s silicon oxide memories are a type of two-terminal, “resistive random-access memory” (RRAM) technology. In a new paper available online in the American Chemical Society journal Nano Letters, a Rice team led by chemist James Tour compared its RRAM technology to more than a dozen competing versions. “This memory is superior to all other two-terminal unipolar resistive memories by almost every metric,” Tour said. “And because our devices use silicon oxide — the most studied material on Earth — the underlying physics are both well-understood and easy to implement in existing fabrication facilities.” Tour is Rice’s T.T. and W.F. Chao Chair in Chemistry and professor of mechanical engineering and nanoengineering and of computer science. Tour and colleagues began work on their breakthrough RRAM technology more than five years ago. The basic concept behind

The post Rice’s silicon oxide memories catch manufacturers’ eye has been published on Technology Org.

 
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Quantum leap in lasers brightens future for quantum computing

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Scientists have devised a breakthrough laser that uses a single artificial atom to generate and emit particles of light. The laser may play a crucial role in the development of quantum computers, which are predicted to eventually outperform today's most powerful supercomputers.

via Science Daily

The heart of an astronaut, five years on

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The heart of an astronaut is a much-studied thing. Scientists have analyzed its blood flow, rhythms, atrophy and, through journal studies, even matters of the heart. But for the first time, researchers are looking at how oxidative stress and inflammation caused by the conditions of space flight affect those hearts for up to five years after astronauts fly on the International Space Station. Lessons learned may help improve cardiovascular health on Earth as well.

via Science Daily

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NASA's Chandra X-ray Observatory celebrates 15th anniversary

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Fifteen years ago, NASA's Chandra X-ray Observatory was launched into space aboard the Space Shuttle Columbia. Since its deployment on July 23, 1999, Chandra has helped revolutionize our understanding of the universe through its unrivaled X-ray vision.

via Science Daily

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NASA's Fermi finds a 'transformer' pulsar

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In late June 2013, an exceptional binary containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed. The pulsar's radio beacon vanished, while at the same time the system brightened fivefold in gamma rays, the most powerful form of light, according to measurements by NASA's Fermi Gamma-ray Space Telescope.

via Science Daily

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Hubble traces halo of a galaxy more accurately than ever before: An in-depth look at giant elliptical galaxy Centaurus A

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Astronomers have probed the extreme outskirts of the stunning elliptical galaxy Centaurus A. The galaxy's halo of stars has been found to extend much further from the galaxy's center than expected and the stars within this halo seem to be surprisingly rich in heavy elements. This is the most remote portion of an elliptical galaxy ever to have been explored.

via Science Daily

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The Veil Nebula Selection Posters

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


tagged with: astronomy, space, prints, pictures, gift, gifts, nasa, hubble, nebula, beautiful, science, technology

The Veil Nebula Selection Print. This is a small portion of the Veil Nebula — the shattered remains of a supernova that exploded thousands of years ago. The entire structure spans about 3 degrees on the sky, corresponding to about 6 full moons. The image was taken with Hubble's Wide Field Planetary Camera 2 in November 1994 and August 1997. Courtesy: NASA.

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Four-winged dinosaur found in China

Science Focus

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The largest ever four-winged dinosaur has been discovered in China, with remarkably long feathers on its hindwings and tail. 
#science 
 » see original post http://www.bbc.co.uk/news/science-environment-28295571#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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VIDEO: One giant step: UK set for spaceport

Science Focus

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The BBC's Pallab Ghosh reports from a potential spaceport site in north Wales, one of eight aerodromes to be shortlisted in the UK as a base for spaceplane flights. 
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 » see original post http://www.bbc.co.uk/news/science-environment-28305814#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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Carina Nebula - Breathtaking Universe Sticker

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


tagged with: stlrnrsry, star clusters, galaxies, awesome astronomy pictures, constellation puppis, the stern, star nurseries, nebulae, outer space exploration, universe photographs, starfields, european southern observatory, eso, vista

Galaxies, Stars and Nebulae series

A gorgeous set of oval stickers showing the area surrounding the stellar cluster NGC 2467, located in the southern constellation of Puppis ("The Stern"). With an age of a few million years at most, it is a very active stellar nursery, where new stars are born continuously from large clouds of dust and gas.

The image, looking like a colourful cosmic ghost or a gigantic celestial Mandrill, contains the open clusters Haffner 18 (centre) and Haffner 19 (middle right: it is located inside the smaller pink region - the lower eye of the Mandrill), as well as vast areas of ionised gas.

The bright star at the centre of the largest pink region on the bottom of the image is HD 64315, a massive young star that is helping shaping the structure of the whole nebular region.

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Image code: stlrnrsry

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

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The halo of a galaxy

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Hubble takes in-depth look at the giant elliptical galaxy Centaurus A

via ESA Space Science

http://sci.esa.int/hubble/54375

Simulated 'engine of explosion' observed in supernova remnant

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Back in 2003, researchers using the Oak Ridge Leadership Computing Facility's (OLCF's) first supercomputer, Phoenix, started out with a bang. Astrophysicists studying core-collapse supernovae—dying massive stars that violently explode after running out of fuel—asked themselves what mechanism triggers explosion and a fusion chain reaction that releases all the elements found in the universe, including those that make up the matter around us?



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Cave with Aurora Skylight

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Zazzle Space Gifts for young and old

Carina Nebula Hubble Space Room Stickers

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


tagged with: carina nebula, nebula, astronomy, stars, nasa, mystic mountain, outer space, deep space, nature, cool astronomy, star formation, milky way, hh 901, hh 902, esa, universe, hubble telescope, hubble space telescope, hubble photo, cosmos, astronomical, cosmology, space, natural, science, space picture, space image, nebula picture, cool astronomy photo, cool space photo, nebula photo, nebula image

Hubble telescope photograph of the Carina Nebula

This photo of the Carina Nebula was taken by the Hubble Space Telescope. It is reminiscent of a sci-fi/fantasy illustration, and shows an enormous mountainous pillar of dust and gas in rich orange tones, against a starlit deep blue background.

Credit: NASA, ESA, M. Livio and the Hubble 20th Anniversary Team (STScI)

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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Cat's Eye Nebula Wall Decals

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


tagged with: cat's eye nebula, nebula, space, universe, astronomy, astronomer, star, cat's eye, cats eye

The Cat's Eye Nebula or NGC 6543, is a planetary nebula in the constellation of Draco. Structurally, it is one of the most complex nebulae known, with high-resolution Hubble Space Telescope observations revealing remarkable structures such as knots, jets, bubbles and sinewy arc-like features. In the center of the Cat's Eye there is a bright and hot star; around 1000 years ago this star lost its outer envelope, producing the nebula. - Wikipedia.org. Image by NASA.

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Nebula in Turquoise iPad Air Powis Case iPad Air Covers

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: turquoise, blue, green, stars, nebula, space, astronomy, clouds, hubble, out of this world, decor, nature, beauty, home, alien

Nebula in Turquoise iPad Air Powis Case Personalize

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The Hubble Ultra Deep Field Space Image Case 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: deep space, hubble, hubble deep field, hubble ultra deep field, deep field, astronomy, cosmology, constellation fornax, fornax, hudf

The Hubble Ultra-Deep Field (HUDF) is an image of a small region of space in the constellation Fornax, composited from Hubble Space Telescope data accumulated over a period from September 24, 2003, through to January 16, 2004. Looking back approximately 13 billion years (between 400 and 800 million years after the Big Bang) it will be used to search for galaxies that existed at that time. The HUDF image was taken in a section of the sky with a low density of bright stars in the near-field, allowing much better viewing of dimmer, more distant objects. The image contains an estimated 10,000 galaxies. In August and September 2009, the Hubble's Deep Field was expanded using the infrared channel of the recently attached Wide Field Camera 3 (WFC3). When combined with existing HUDF data, astronomers were able to identify a new list of potentially very distant galaxies.

This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material.

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Researchers develop holography technology that could change the way we view the world

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Since the 1960s, theatergoers have shelled out for crude 3-D glasses, polarized glasses, and shutter glasses to enhance their viewing experience. These basic devices, used to trick the brain into perceiving an artificial three-dimensional reality, may soon be rendered obsolete with the introduction of new holography technology developed by Tel Aviv University researchers. TAU doctoral students Yuval Yifat, Michal Eitan, and Zeev Iluz have developed highly efficient holography based on nanoantennas that could be used for security as well as medical and recreational purposes. Prof. Yael Hanein, of TAU’s School of Electrical Engineering and head of TAU’s Center for Nanoscience and Nanotechnology, and Prof. Jacob Scheuer and Prof. Amir Boag of the School of Electrical Engineering, led the development team. Their research, published in the American Chemical Society’s publication Nano Letters, uses the parameters of light itself to create dynamic and complex holographic images. In order to effect a three-dimensional projection using existing technology, two-dimensional images must be “replotted” — rotated and expanded to achieve three-dimension-like vision. But the team’s nanoantenna technology permits newly designed holograms to replicate the appearance of depth without being replotted. The applications for the technology are vast and diverse, according to the researchers, who have already

The post Researchers develop holography technology that could change the way we view the world has been published on Technology Org.

 
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Vintage Astronomy, Constellations of Southern Sky Poster

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


tagged with: sky, constellations, nostalgic, stars, nostalgia, retro, antique, americana, vintage, celestial map

Vintage illustration Renaissance era astronomy and celestial image featuring a star chart of the southern sky, created in 1660 by Andreas Cellarius. Map of the constellations of the southern hemisphere including some signs of the Zodiac, from The Celestial Atlas, or the Harmony of the Universe. Andreas Cellarius (c.1596-1665) was a Dutch-German cartographer, best known for his Harmonia Macrocosmica of 1660, a major star atlas, published by Johannes Janssonius in Amsterdam.

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Tadpole Nebula, Auriga Constellation Square Sticker

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


tagged with: envelope sealers, star forming activity, awesome astronomy images, tnitac, tadpole nebula, auriga constellation, interstellar gas clouds, new born stars, hot young stars, star nursery, dust clouds

Galaxies, Stars and Nebulae series An awesome outer space picture featuring the Tadpole Nebula, a star forming hub located about 12000 light years away in the Auriga constellation.
This nebula is brimming with new-born stars, many as young as only a million years of age. It's called the Tadpole nebula because the masses of hot, young stars are blasting out ultraviolet radiation that has etched the gas into two tadpole-shaped pillars, called Sim 129 and130, the yellow forms that seem to be swimming away from the three red stars close to the centre of the picture.

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image code: tnitac

Image credit: NASA/JPL-Caltech/UCLA

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Carina Nebula Room Sticker

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


tagged with: carina nebula, nebula, stars, astronomy, univesrse, space

The Carina Nebula is a large bright nebula that surrounds several open clusters of stars.

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Boomerang Nebula Hubble Astronomy Wall Stickers

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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Star Cluster N90 Hubble Space 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: astronomy, hubble telescope, stars, nasa, universe, astrophotography, nature, abstract, cool space, beautiful, star cluster, space, nebula, outer space, cosmos, cosmic, astronomical, cosmology, space picture, space image, deep space, natural, science, space photo, black sky, glowing, sparkling, starry, sparkly, gas clouds, fuzzy, hazy, space gifts, astronomy gifts, space products, astronomy products, bright, cool astronomy, pretty

This beautiful Hubble space photograph shows a cluster of newly formed stars in the N90 star forming region. Shiny twinkling stars are surrounded by brown dust clouds and dark black sky.

Image Credit: NASA, ESA and the Hubble Heritage Team STScI/AURA)-ESA/Hubble Collaboration

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Hubble eXtreme Deep Field iPad Folio Covers

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: hubble extreme deep field, hubble deep field, extreme deep field, hubble, astronomy, cosmology, galaxies, deep space, xdf, outer space

The Hubble eXtreme Deep Field (XDF) is an image of a small part of space in the center of the Hubble Ultra Deep Field within the constellation Fornax, showing the deepest optical view in space. Released on September 25, 2012, it took 10 years to compile the images and shows galaxies from 13.2 billion years ago. The exposure time was two million seconds, or approximately 23 days. The faintest galaxies are one ten-billionth the brightness of what the human eye can see. The red galaxies are the remnants of galaxies after major collisions during their elderly years. Many of the smaller galaxies are very young galaxies that eventually became the major galaxies, like the Milky Way and other galaxies in our galactic neighborhood. The Hubble eXtreme Deep Field, or XDF, adds another 5,500 galaxies to Hubble's 2003 and 2004 view into a tiny patch of the farthest universe.

This work has been released into the public domain by its author, Credit: NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team.

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