Tuesday 7 July 2015

New 2-D material’s properties show promise

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One completed a series of theoretical calculations to predict its properties with the help of a massive computing

The post New 2-D material’s properties show promise has been published on Technology Org.

 
#materials 
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Using sonar to navigate: Bats do it, dolphins do it, and now humans can do it, too

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Bats have been using sonar to navigate and communicate for ages, and now humans can do the same, thanks to lightweight and efficient ultrasound microphones and loudspeakers developed by physicists. The devices owe their flat frequency response to graphene, which makes a stiff and responsive diaphragm far superior to those in today's ultrasound receivers and transmitters. Biologists can even slap one on a bat to record its nightly ultrasonic conversations.
via Science Daily

Stunning Photo of the Moon Poster

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


tagged with: moon, the moon, space, astronomy, space photo, photos of space, planets, solar system

This is such a beautiful image of the Moon. Perfect gift for any astronomy/science fan.

»visit the Spaced_Out store for more designs and products like this
Click to customize with size, paper type etc.
via Zazzle Astronomy market place

LHC back in collision mode

Controversial trial of GM crop shows no benefits

Science Focus

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In 2012, protesters descended on an unlikely target: Rothamstead, the oldest agricultural research center in the world and a nonprofit that focuses on sustainable food production. The protesters weren't simply upset with some of the work going on there; they announced in advance that they planned to destroy it. The reason? It involved genetically modified crops.

Researchers at Rothamstead had introduced a gene from peppermint into wheat, allowing the crop to produce a chemical that aphids use as an alarm signal. In lab tests, aphids had avoided wheat carrying the additional gene, suggesting that the GM wheat could limit the need for pesticide applications. The lab findings, however, needed to be validated through field trials. And anti-GMO activists decided that these trials posed an unacceptable risk to the public and farmers and needed to be stopped.

With heightened security, the trials went forward, and the results have now been published. It turns out that the summer the trials were run was cold and rainy, and aphids as a whole didn't do well—there were so few even the control plants were "well below the recommended [pesticide] spray thresholds for summer aphids in the UK." The aphids that were present, however, didn't seem to mind the presence of the alarm pheromone on the transgenic wheat.

Read 3 remaining paragraphs | Comments

 
#science 
 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/5bLS10t94ko/
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Theory Turns to Reality for Nonlinear Optical Metamaterials

Science Focus

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A research team has realized one of the long-standing theoretical predictions in nonlinear optical metamaterials: creation of a

The post Theory Turns to Reality for Nonlinear Optical Metamaterials has been published on Technology Org.

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/W-BqiltaW50/
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Could black phosphorus be the next silicon?

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Researchers report that when electrons move in a phosphorus transistor, they do so only in two dimensions. The finding suggests that black phosphorus could help engineers surmount one of the big challenges for future electronics: designing energy-efficient transistors.
via Science Daily

Carina Nebula in Argo Navis constellation Square Sticker

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


tagged with: stars, galaxies, astronomy, envelope sealers, carina nebula, argos navis constellation, carina the keel, star formation, gas clouds, carnebngcttst, ngc 3372

Galaxies, Stars and Nebulae series Hubble's view of the Carina Nebula shows star birth in a new level of detail. The fantasy-like landscape of the nebula is sculpted by the action of outflowing winds and scorching ultraviolet radiation from the monster stars that inhabit this inferno. In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born. The immense nebula is an estimated 7,500 light-years away in the southern constellation Carina the Keel (of the old southern constellation Argo Navis, the ship of Jason and the Argonauts, from Greek mythology).
The original image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble Space Telescope's Advanced Camera for Surveys. The Hubble images were taken in the light of ionized hydrogen. Colour information was added with data taken at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.

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image code: carnebngcttst

Image credit: Hubble Space Telescope; colour data from the Cerro Tololo Inter-American Observatory, Chile

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via Zazzle Astronomy market place

The Milky Way from a Malibu Sea Cave

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Zazzle Space Gifts for young and old

Transition discs in Ophiuchus and Taurus

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A star is typically born with a disk of gas and dust encircling it, from which planets develop as dust grains in the disk collide, stick together and grow. These disks, warmed by the star to a range of temperatures above the cold, ambient interstellar material, can be detected at infrared or millimeter wavelengths, and their infrared color used to characterize their properties. Stars older than about five million years lack evidence for these disks, however, suggesting that by this age most of the disk material has either been converted into planets or smaller bodies, accreted onto the star, or dispersed from the system. Transition disks bridge this period in disk evolution: They have not yet been disbursed, but although they are present they emit only slightly in the infrared. Their emission shows characteristically cooler temperatures, and signs that the innermost (hottest) regions have already disappeared and left a gap (or cavity) in the ring.

Zazzle Space market place

Light Echo from Star V838 iPad Mini 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: le0018, nasa, etoiles, les etoiles, astronomy, nebula, space, hubble, science, scientific, outer space, deep space, sky, hst, hubble telescope, nebulae, reflection, nova, v838, monocerotis, light echo, hubble space telescope, red, orange, black, beautiful, pretty, inspiring, celestial

"[This is] the most recent NASA Hubble Space Telescope view of an unusual phenomenon in space called a light echo. Light from a star that erupted nearly five years ago continues propagating outward through a cloud of dust surrounding the star. The light reflects or "echoes" off the dust and then travels to Earth."

(qtd. from HubbleSite.org NewsCenter release STScI-2006-50)

Credit: NASA, ESA, and H. Bond (STScI)

»visit the les_etoiles store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Graphenea at Nano Korea 2015

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Graphenea exhibited our product line at Nano Korea 2015 in Seoul last week. Nano Korea, described by its organizers as a “global marketplace aimed at creating new businesses and boosting cooperation in nanotechnology”, brought together over 370 companies from 16 countries and more than 5,000 participants.

Photo: Nano Korea 2015 opening ceremony.

Apart from traditional stands at the seriously vast exhibition space, the event featured one-on-one match making meetings. The seminar component of the event was split into four sessions, focused on bringing nanotechnology to the market and covering recent research progress, fostering business meetings and networking between investors and nanotech companies. Graphenea’s Business Development Director Iñigo Charola gave a talk with the title "Advances in Technology Development for the Production and Applications of Graphene Materials".


via Graphenea

Could black phosphorus be the next silicon?

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As scientists continue to hunt for a material that will make it possible to pack more transistors on a chip, new research from McGill University and Université de Montréal adds to evidence that black phosphorus could emerge as a strong candidate.

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Toward tiny, solar-powered sensors

original post »

The latest buzz in the information technology industry regards “the Internet of things” — the idea that vehicles,

The post Toward tiny, solar-powered sensors has been published on Technology Org.

 
#materials 
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2014 ORBITAL CALENDAR: Solar System Poster

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


tagged with: astronomy poster, circular calendar, phases of the moon, spacetime, calendar cycles, timespace

Astronomy Science Poster EARTH-MOON w/ SOLAR SYSTEM ~ Your Year In Space! ~ Astronomically-correct TimeSpace, MILKY WAY Galaxy in background Perfect for S.T.E.M Education: TEACH astronomy in a flash... . ...from Earth to Moon to Sun, celestial math. Use Dry Erase markers to add your data, meteor showers, study cycles, National Calendar Awards for: Most Original, Most Educational Best Graphic Design

»visit the Celestial_Dynamics store for more designs and products like this
Click to customize with size, paper type etc.
via Zazzle Astronomy market place

Carina Nebula in Argo Navis constellation Rectangular Sticker

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


tagged with: stars, galaxies, astronomy, peel off, carina nebula, argos navis constellation, carina the keel, star formation, gas clouds, carnebngcttst, ngc 3372

Galaxies, Stars and Nebulae series Hubble's view of the Carina Nebula shows star birth in a new level of detail. The fantasy-like landscape of the nebula is sculpted by the action of outflowing winds and scorching ultraviolet radiation from the monster stars that inhabit this inferno. In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born. The immense nebula is an estimated 7,500 light-years away in the southern constellation Carina the Keel (of the old southern constellation Argo Navis, the ship of Jason and the Argonauts, from Greek mythology).
The original image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble Space Telescope's Advanced Camera for Surveys. The Hubble images were taken in the light of ionized hydrogen. Colour information was added with data taken at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.

more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: carnebngcttst

Image credit: Hubble Space Telescope; colour data from the Cerro Tololo Inter-American Observatory, Chile

»visit the HightonRidley store for more designs and products like this
Click to customize.
via Zazzle Astronomy market place

Dwarf Galaxy Holmberg IX iPad Mini 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: le0070, nasa, etoiles, les etoiles, astronomy, science, galaxy, hubble, space, scientific, outer space, deep space, galaxies, hst, hubble telescope, sky, dwarf, holmberg, irregular, magellanic, ursa major, hubble space telescope, blue, black, beautiful, pretty, celestial

"This loose collection of stars is actually a dwarf irregular galaxy, called Holmberg IX. It resides just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so-called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbor to our own Milky Way. Holmberg IX was first discovered by astronomer Sidney van den Bergh in 1959, and cataloged as DDO 66. The galaxy received its "Holmberg IX" naming when it was discussed in Eric Holmberg's study of groups of galaxies ten years later. It is suspected that the dwarf galaxy was created as a result of a galactic interaction between M81 and neighboring galaxy M82."

(qtd. from Hubblesite.org NewsCenter release STScI-2008-02)

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

»visit the les_etoiles store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!