Wednesday 27 May 2015

How used coffee-grounds could make some food more healthful

original post »

Coffee has gone from dietary foe to friend in recent years, partly due to the revelation that it’s

The post How used coffee-grounds could make some food more healthful has been published on Technology Org.

 
#materials 
See Zazzle gifts tagged with 'science'

Spiraling laser pulses could change the nature of graphene

more »
A new study predicts that researchers could use spiraling pulses of laser light to change the nature of graphene, turning it from a metal into an insulator and giving it other peculiar properties that might be used to encode information.
via Science Daily

Shock Collision Inside Black Hole Jet

more »
Astronomers have discovered for the first time a rear-end collision between two high-speed knots of ejected matter from a supermassive black hole. This discovery was made while piecing together a time-lapse movie of a plasma jet blasted from a supermassive black hole inside galaxy 3C 264, located 260 million light-years from Earth in the constellation Leo.
via Science Daily
Zazzle Space Exploration market place

Endless oscillations, destined never to relax: A theoretical study on quantum systems

more »
According to classical physics, the universe tends to equilibrium but the same does not apply to quantum systems, which are destined to shift constantly between different configurations without ever finding peace. A theoretical study illustrates this dramatic difference and explains that in order to be described correctly one-dimensional quantum systems should be thought of as being defined on discrete points in space.
via Science Daily
Zazzle Space Exploration market place

A bubbly cosmic celebration

more »
In the brightest region of this glowing nebula called RCW 34, gas is heated dramatically by young stars and expands through the surrounding cooler gas. Once the heated hydrogen reaches the borders of the gas cloud, it bursts outwards into the vacuum like the contents of an uncorked champagne bottle -- this process is referred to as champagne flow. But the young star-forming region RCW 34 has more to offer than a few bubbles; there seem to have been multiple episodes of star formation within the same cloud.
via Science Daily
Zazzle Space Exploration market place

Hubble Video Shows Shock Collision Inside Black Hole Jet


Get larger image formats

One of the trademarks of the Star Wars film episodes is the dreaded Death Star battle station that fires a beam of directed energy powerful enough to blow up planets. The real universe has such fireworks, and they are vastly more powerful than the Star Wars creation. These extragalactic jets are tearing across hundreds of light-years of space at 98 percent the speed of light. Instead of a battle station, the source of the killer beam is a supermassive black hole weighing many million or even a billion times the mass of our sun. Energy from the spinning black hole, and its titanic magnetic fields, shape a narrow jet of gas blasting out a galaxy's center. Hubble has been used over the past 25 years to photograph and rephotograph a jet blasting out the heart of the elliptical galaxy 3C 264 (also known as NGC 3862). Hubble's sharp vision reveals that the jet has a string-of-pearls structure of glowing knots of material. When these images were assembled into a time-lapse movie, they reveal to the surprise of astronomers a faster-moving bright knot rear-ending the bright knot in front of it. The resulting shock collision further accelerates particles that produce a focused beam of deadly radiation. The jet is moving so fast toward us it gives the illusion that it is traveling faster than the speed of light. But not to worry, the host galaxy is 260 million light-years away. We are seeing the jet as it looked before the dinosaurs appeared on Earth, and our planet was suffering a global mass extinction.


via HubbleSite NewsCenter -- Latest News Releases
http://hubblesite.org/newscenter/archive/releases/2015/19/

Similarities between aurorae on Mars and Earth

more »
Astronomers have for the first time predicted the occurrence of aurorae visible to the naked eye on a planet other than Earth.
via Science Daily
Zazzle Space Exploration market place

Monogram - Eagle Nebula, Pillars of Creation Oval Sticker

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


tagged with: breathtaking astronomy images, eglneb, young stars clusters, star forming nebulae, messier 16 ngc 6611, pillars of creation, inspirational, eagle nebula, monograms, initialled, heavens, eso, european southern observatory, vista, initials, monogrammed, monogram

Galaxies, Stars and Nebulae series A breathtaking outer space picture showing a spectacular three-colour composite mosaic image of the Eagle Nebula (Messier 16, or NGC 6611). It's based on images obtained with the Wide-Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory.

At the centre, the so-called “Pillars of Creation” can be seen and this wide-field image shows not only the central pillars, but also several others in the same star-forming region, as well as a huge number of stars in front of, in, or behind the Eagle Nebula.

The cluster of bright stars to the upper right is NGC 6611, home to the massive and hot stars that illuminate the pillars. The “Spire” - another large pillar - is in the middle left of the image.

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

image code: eglneb

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

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

Mystic Mountains - Carina Nebula Astronomy Image Wrapping Paper

Get your out-of-this-world gift wrap here! Perfect for Christmas gifts for anyone who is fascinated by what the universe holds in store for us!


tagged with: mystic mountain, star forming activity, star nurseries, stellar winds, young hot stars, carina nebula, galaxy stars, hubble space photography, gas clouds, outer space sculpture, hrbstslr cnbigc

Galaxies, Stars and Nebulae series A beautiful space photograph featuring the 7500 light year distant Carina Nebula. This Hubble image shows rich, interstellar gas clouds feeding the formation of new stars. As a proto star forms, the gas clouds get dragged to its surface and some gets emitted as tight jets of material travelling at hundreds of miles per second. These in turn help sculpt the gas clouds into weird and grotesque shapes, some looking like strange worms, swimming through space.
more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: cnbigc

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

»visit the HightonRidley store for more designs and products like this
Click to personalize with name and message - or just to see it bigger.
via Zazzle Astronomy market place

Graphene applications reviewed

more »

The Annual "Graphene: Applications, Technologies, and Opportunities Summit" took place last week in Berlin. Graphenea Business Development Director Iñigo Charola was on the speaker list, among science and business leaders that are shaping the graphene world today.

The Graphene Summit, in its second edition hosted by Vonlanthen Group, followed the course set in the first meeting last year and focused on bringing graphene to the market. Key practical points of the summit included the evaluation of alternative methods of production of large scale, low defect graphene, liquid exfoliation of graphene and other 2D materials, graphene in structural applications, opto-electronics, and supercapacitors. Naturally, the meeting fostered a discussion on strategic investment and getting graphene to the market.



On part of Graphenea, Iñigo spoke about the graphene market and roadmap. The presentation addressed key topics in commercialization of graphene, such as the current market situation and evolution forecasts, a review of high technology readiness level applications, and scalability.

"For graphenes to succeed, several key events need to occur", proclaimed Iñigo. "The material needs to be incorporated into current manufacturing processes, production needs to scale up, and the price will need to reflect the value for the end user. The graphene market will be driven by R&D needs over the next 3-5 years", added Iñigo.

Iñigo's presentation focused on graphene oxide and large area sheets of graphene, production directions in which Graphenea excels. Summit participants had the opportunity to catch up on today's market volumes, predictions of technological development, and industry roadmaps.

Graphenea salutes the increasing number of graphene business conferences, where key industry stakeholders mingle and share experiences and ideas.


via Graphenea

Approaching Pluto

more »



Zazzle Space Gifts for young and old

Turbulent Star-Birth Region Selection 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: hubble, nasa, stars, star, galaxy, galaxies, space, astronomy, telescope, beautiful, photos, nebula, nature, landscapes

In commemoration of NASA's Hubble Space Telescope completing its 100,000th orbit in its 18th year of exploration and discovery, scientists at the Space Telescope Science Institute in Baltimore, Md., have aimed Hubble to take a snapshot of a dazzling region of celestial birth and renewal. Hubble peered into a small portion of the nebula near the star cluster NGC 2074 (upper, left). The region is a firestorm of raw stellar creation, perhaps triggered by a nearby supernova explosion. It lies about 170,000 light-years away near the Tarantula nebula, one of the most active star-forming regions in our Local Group of galaxies. The three-dimensional-looking image reveals dramatic ridges and valleys of dust, serpent-head "pillars of creation," and gaseous filaments glowing fiercely under torrential ultraviolet radiation. The region is on the edge of a dark molecular cloud that is an incubator for the birth of new stars. The high-energy radiation blazing out from clusters of hot young stars already born in NGC 2074 is sculpting the wall of the nebula by slowly eroding it away. Another young cluster may be hidden beneath a circle of brilliant blue gas at center, bottom. In this approximately 100-light-year-wide fantasy-like landscape, dark towers of dust rise above a glowing wall of gases on the surface of the molecular cloud. The seahorse-shaped pillar at lower, right is approximately 20 light-years long, roughly four times the distance between our Sun and the nearest star, Alpha Centauri. The region is in the Large Magellanic Cloud (LMC), a satellite of our Milky Way galaxy. It is a fascinating laboratory for observing star-formation regions and their evolution. Dwarf galaxies like the LMC are considered to be the primitive building blocks of larger galaxies. This representative color image was taken on August 10, 2008, with Hubble's Wide Field Planetary Camera 2. Red shows emission from sulfur atoms, green from glowing hydrogen, and blue from glowing oxygen. Source: NASA.

»visit the Galactica 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!

CERN takes to reddit to discuss new energy frontier

Don't miss CERN's "Ask Me Anything" session on the online forum reddit, tomorrow from 4pm CEST. Representatives from the LHC experiments ALICE, ATLAS, CMS and LHCb, as well as a CERN theorist and members of the LHC Operations team will be available live on the site’s /r/IAmA sub-forum, answering the community’s questions in real time in written form.

Last week, the Large Hadron Collider (LHC) broke the world record for the highest-energy human-made collisions in a particle accelerator. CERN is one step closer to LHC Season 2, with collisions for physics data at 13 teraelectronvolts (TeV) due to start in June.

Ask the researchers your questions about what's in store for the LHC and its experiments at this new energy frontier.

The team of participants includes:

  • ALICE Run coordinator Federico Ronchetti
  • ATLAS collaboration Deputy spokesperson Beate Heinemann
  • CMS Physics coordinator Luca Malgeri
  • LHC Engineer-in-charge Reyes Alemany Fernandez
  • CERN Theorist Andreas Weiler

Got a question? Ask these researchers anything, tomorrow at 4pm CEST. The link will go live here: reddit.com/r/iAMA


via CERN: Updates for the general public
http://home.web.cern.ch/about/updates/2015/05/cern-takes-reddit-discuss-new-energy-frontier

Probing iron chemistry in the deep mantle

original post »

Carbonates are a group of minerals that contain the carbonate ion (CO32-) and a metal, such as iron

The post Probing iron chemistry in the deep mantle has been published on Technology Org.

 
#materials 
See Zazzle gifts tagged with 'science'

Monogram Omega Nebula - Our Amazing Universe Oval Sticker

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


tagged with: awesome astronomy images, omgneb, star forming regions, ngc 6618, omega nebula, inspirational, heavens, uplifting, initials, monogrammed, messier 17, european southern observatory, eso, vista, initialled, monogram, monograms

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).

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

image code: omgneb

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

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

Name, Cats Eye Nebula, Eye of God outer space Gift Wrap Paper

Get your out-of-this-world gift wrap here! Perfect for Christmas gifts for anyone who is fascinated by what the universe holds in store for us!


tagged with: nebulae, hubble chandra images, cats eye nebula, dying star, red giant evolution, outer space, galaxy stars, tcenebnch, deep space astronomy, eye of god, stellar evolution, nasa

Galaxies, Stars and Nebulae series A gorgeous design featuring a composite image of the Cat's Eye nebula from NASA's Chandra X-ray Observatory and the Hubble Space Telescope.
This famous nebula represents a phase of stellar evolution after a star like our Sun runs out of fuel. In this phase, a star becomes an expanding red giant and sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures.
more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: tcenebnch

Image credit: NASA/Chandra www.nasa.gov

»visit the HightonRidley store for more designs and products like this
Click to personalize with name and message - or just to see it bigger.
via Zazzle Astronomy market place

Veil Nebula 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: international, astronomy, space, nasa, hubble, telescope, gift, outer space, deep space, star

Supernova discoveries are reported to the International Astronomical Union's Central Bureau for Astronomical Telegrams, which sends out a circular with the name it assigns to it. The name is the year of discovery, immediately followed by a one or two-letter designation. The first 26 supernovae of the year are designated with a capital letter from A to Z. Afterward pairs of lower-case letters are used: aa, ab, and so on.[36] Since 2000, professional and amateur astronomers find several hundreds of supernovae each year (572 in 2007, 261 in 2008, 390 in 2009). For example, the last supernova of 2005 was SN 2005nc, indicating that it was the 367th[nb 1] supernova found in 2005.[37][38] Historical supernovae are known simply by the year they occurred: SN 185, SN 1006, SN 1054, SN 1572 (Tycho's Nova) and SN 1604 (Kepler's Star). Since 1885 the letter notation has been used, even if there was only one supernova discovered that year (e.g. SN 1885A, 1907A, etc.)—this last happened with SN 1947A. "SN", for SuperNova, is a standard prefix. Until 1987, two-letter designations were rarely needed; since 1988, however, they have been needed every year.

»visit the Nasaworld 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!