Thursday 30 April 2015

Phonons, arise! Small electric voltage alters conductivity in key materials

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Modern research has found no simple, inexpensive way to alter a material’s thermal conductivity at room temperature. That

The post Phonons, arise! Small electric voltage alters conductivity in key materials has been published on Technology Org.

 
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Physicists discover quantum-mechanical monopoles

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Researchers at Aalto University (Finland) and Amherst College have observed a point-like monopole in a quantum field itself for the first time. This discovery connects to important characteristics of the elusive monopole magnet. The results were just published in Science magazine.

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Pairs of silicon nanocylinders can locally create and enhance light's magnetic field

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Shining visible light on two tiny silicon cylinders, or a 'nanodimer', placed just 30 nanometers apart, produces resonant hot spots for both the electric and magnetic fields, finds a study by A*STAR researchers. This phenomenon could potentially be used to connect computing devices.

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Monogram Carina Nebula - Breathtaking Universe Stickers

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


tagged with: stlrnrsry, star clusters, galaxies, stars, starfields, awesome astronomy pictures, constellation puppis, the stern, monogram, monograms, star nurseries, nebulae, european southern observatory, eso, vista, initials, initialled, monogrammed

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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Eagle Nebula: The Pillars of Creation revealed in 3-D

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Astronomers have produced the first complete three-dimensional view of the famous Pillars of Creation in the Eagle Nebula, Messier 16. The new observations demonstrate how the different dusty pillars of this iconic object are distributed in space and reveal many new details. Intense radiation and stellar winds from the cluster's brilliant stars have sculpted the dusty Pillars of Creation over time and should fully evaporate them in about three million years.
via Science Daily
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Across the Sun

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A long solar filament stretches across the relatively calm surface of the Sun in this telescopic snap shot from April 27. The negative or inverted narrowband image was made in the light of ionized hydrogen atoms. Seen at the upper left, the magnificent curtain of magnetized plasma towers above surface and actually reaches beyond the Sun's edge. How long is the solar filament? About as long as the distance from Earth to Moon, illustrated by the scale insert at the left. Tracking toward the right across the solar disk a day later the long filament erupted, lifting away from the Sun's surface. Monitored by Sun staring satellites, a coronal mass ejection was also blasted from the site but is expected to swing wide of our fair planet.
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Researchers devise a way to grow 3 atom thick semiconducting films with wafer scale homogeneity

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(Phys.org)—A team of researchers at Cornell University has developed a technique that allows for growing 3 atom thick semiconducting films on wafers, up to 10 centimeters across. In their paper published in the journal Nature, the team describes their technique and the ways it might be used to create ultra-tiny circuits. Tobin Marks and Mark Hersam of Northwestern University offer a News & Views perspective piece on the work done by the team in the same journal issue.

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Arts @ CERN: Three winning artists and an open call

Arts @ CERN, CERN's official engagement with the arts, is today announcing three winning art projects from the different strands, Accelerate @ CERN and Collide @ CERN, as well as launching the international open call for Collide @ CERN in digital arts. Now in its fifth year, Arts @ CERN has welcomed more than 70 artists to the Laboratory.

 “In pursuit of its cultural policy, Arts @ CERN continues to bring ‘Great Arts for Great Science’, giving artists the opportunity to discover the universe of high-energy physics at CERN,” said CERN Director-General Rolf Heuer.

Accelerate @ CERN is a one month research stay at CERN, organized in collaboration this year with Taiwan and Austria. The jury of Accelerate @ CERN Taiwan, funded by the Ministry of Culture for Taiwan, made the award to a joint project from dancer Wenchi Su and digital artist Pei-Ying Lin, for their unique combination of dance and physics principles, where language and spatial interaction would be used in extraordinary ways. “CERN is the dream place I always wanted to go to, except I never expected to be there as an artist rather than a physicist,” says Pei-Ying Lin.

The jury of Accelerate @ CERN Austria, funded by the Austrian Federal Chancellery, selected architects Sandra Manninger and Matias Del Campo, for their focus on the notion of geometry. “Scientific insights have always been part of what influenced us as architects and designers, not only in terms of a technological aid, but as a cultural agent and catalyst for new spatial solutions,” said the two winners.

The winner of the Collide @ CERN Pro Helvetia artist residency programme is the collective Fragment.in, formed by Laura Perrenoud, Simon de Diesbach, and Marc Dubois. Their art deals with two realities: tangible and virtual reality. “In their proposal, Fragment.in has a unique, original and creative approach to data visualization. We look forward to having them at CERN,” said Monica Bello, Head of Arts @ CERN. Collide @ CERN is the three month residency programme providing artists with time and space to reflect, research and renew their artistic practice.

Following on from three highly successful years of partnership with Ars Electronica, Arts @ CERN launches today the open call for Collide @ CERN Ars Electronica, the award in which artists from any country are invited to apply for a residency at CERN. This call is open for digital artists, innovative concepts and ideas in the field of art, science and technology. The residency will be part of the "European Digital Art and Science Network" initiated by Ars Electronica with the support of the Creative Europe Programme of the EU.

Online submissions open 30 April 2015 and close 23 June 2015. Apply here

Further information


via CERN: Updates for the general public
http://home.web.cern.ch/about/updates/2015/04/arts-cern-three-winning-artists-and-open-call

Orion Nebula iPad 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: orion, nebula, space, image, nasa, hubble, astronomy, pink

A lovely detail of an image of the Orion Nebula thanks to NASA/Hubble.

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The Pillars of Creation revealed in 3-D: Study suggests they more aptly named the Pillars of Destruction

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Using the MUSE instrument on ESO's Very Large Telescope (VLT), astronomers have produced the first complete three-dimensional view of the famous Pillars of Creation in the Eagle Nebula, Messier 16. The new observations demonstrate how the different dusty pillars of this iconic object are distributed in space and reveal many new details—including a previously unseen jet from a young star. Intense radiation and stellar winds from the cluster's brilliant stars have sculpted the dusty Pillars of Creation over time and should fully evaporate them in about three million years.

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Engineering the Smallest Crack in the World

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A new procedure will enable researchers to fabricate smaller, faster, and more powerful nanoscale devices ─ and do

The post Engineering the Smallest Crack in the World has been published on Technology Org.

 
#materials 
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Monogrammed Helix Nebula, Galaxies and Stars Stickers

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


tagged with: star nurseries, star clusters, galaxies, stars, astronomy, nebulae, helixneb, helix nebula, initialled, monogrammed, starfields, heavens, eso, european southern observatory, vista, monogram, initials, monograms

Galaxies, Stars and Nebulae series A fantastic colour-composite image of the Helix Nebula (NGC 7293). It was created from images obtained using the Wide Field Imager (WFI), an astronomical camera attached to the 2.2-metre Max-Planck Society/ESO telescope at the La Silla observatory in Chile.

The blue-green glow in the centre of the Helix comes from oxygen atoms shining under effects of the intense ultraviolet radiation of the 120 000 degree Celsius central star and the hot gas.

Further out from the star and beyond the ring of knots, the red colour from hydrogen and nitrogen is more prominent. A careful look at the central part of this object reveals not only the knots, but also many remote galaxies seen right through the thinly spread glowing gas.
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image code: helixneb

ESO/J. Emerson/VISTA www.eso.org
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Hubble's Sharpest View of .. DODO 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: hubble's, sharpest, view, orion, nebula., dodo, ipad, folio, case

Hubble's Sharpest View of the Orion Nebula. Thousands of stars are forming in the cloud of gas and dust known as the Orion nebula. More than 3,000 stars of various sizes appear in this image. Some of them have never been seen in visible light. Credit: NASA,ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team

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