Sunday 7 June 2015

Black Silicon Solar Cells Reach Record-Breaking 22.1% Efficiency

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Even though recently solar energy has been steadily becoming cheaper and more easily extractable, the dramatic drop in

The post Black Silicon Solar Cells Reach Record-Breaking 22.1% Efficiency has been published on Technology Org.

 
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Graphene oxide biodegrades with help of human enzymes

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Researchers show how graphene oxide suspended in water biodegrades in a reaction catalyzed by a human enzyme, with the effectiveness of the breakdown dependent on the colloidal stability of the suspension. The study should guide the development of graphene-based biomedical applications.
via Science Daily

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

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Asteroid impacts 3.3 billion years ago may have boiled the oceans

Science Focus

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The chaos in the early Solar System was fiendish. Even after the planets had coalesced, there was more than enough rubble left behind to cause frequent and violent impacts that would have rocked the Earth’s youthful crust. After a phase of intense bombardment between about 4.1 and 3.8 billion years ago, things on the asteroid collision scene calmed down. Relatively speaking…

We don’t know exactly when life first developed on Earth, but we know it was present by 3.4 billion years ago. We don’t know if life was present to suffer from the earlier period of bombardment, but we know it was around for any impacts that followed. So what kinds of extraterrestrial punches did life take after 3.4 billion years ago?

A new study by Stanford’s Donald Lowe and Louisiana State University’s Gary Byerly examines a fascinating record of major impacts in South African rocks around 3.3 billion years old. Eight impact layers have been identified in these rocks, each containing sand-sized blobs of rock that solidified after the impact vaporized bedrock. The layers also show signs that they were hit by tsunamis shortly afterward.

Read 8 remaining paragraphs | Comments

 
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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/YfLBFfa6lPw/
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Microchip captures clusters of circulating tumor cells

Science Focus

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Researchers have developed a microfluidic chip that can capture rare clusters of circulating tumor cells, which could yield

The post Microchip captures clusters of circulating tumor cells has been published on Technology Org.

 
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 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/swOhWvEe7BQ/
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Monogram, Star Cluster Pismis 24, core of NGC 6357 Classic Round Sticker

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


tagged with: stars, galaxies, astronomy, peel off, envelope sealers, star cluster, pismis 24, sculpting ultaviolet ionisation, super massive stars, sclustpsms, nebula ngc 6357

Galaxies, Stars and Nebulae series The star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 that extends one degree on the sky in the direction of the Scorpius constellation. Part of the nebula is ionised by the youngest (bluest) heavy stars in Pismis 24. The intense ultraviolet radiation from the blazing stars heats the gas surrounding the cluster and creates a bubble in NGC 6357. The presence of these surrounding gas clouds makes probing into the region even harder. One of the top candidates for the title of "Milky Way stellar heavyweight champion" was, until now, Pismis 24-1, a bright young star that lies in the core of the small open star cluster Pismis 24 (the bright stars in the Hubble image) about 8,000 light-years away from Earth. Pismis 24-1 was thought to have an incredibly large mass of 200 to 300 solar masses. New NASA/ESA Hubble measurements of the star, have, however, resolved Pismis 24-1 into two separate stars, and, in doing so, have "halved" its mass to around 100 solar masses.

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image code: sclustpsms

Image credit: NASA/ESA Hubble

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Name, Deep Space Hubble Astronomy Pictures Gift Wrap

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: hubble, outer space, astronomy, deep space, star galaxies, spiral galaxy, nebula, cosmic, interstellar dust, sky watching

Galaxies, Stars and Nebulae series Gift wrap paper - with the name of the person whose gift it is. Using four astronomy images from deep space, this is the perfect wrapping paper for an out of this world gift!
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NGC 3132: The Eight Burst Nebula

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Zazzle Space Gifts for young and old

The Crab Nebula 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: crab, nebula, supernova, remnant, aqua, pretty, space, picture, image

Lovely space image of the Crab Nebula thanks to NASA Hubble: A Giant Hubble Mosaic of the Crab Nebula.

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

Fresh Milk, Off the Grid

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Even though much of the population in developing countries is involved in agriculture, food security is virtually out

The post Fresh Milk, Off the Grid has been published on Technology Org.

 
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Space, stars, galaxies and nebulas posters

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


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This is a unique fantasy space composition made from a collage of real space images.

space, galaxy, stars, star, cluster, sky, night, "outer space", "science fiction", "sci-fi", "sci fi", scifi, nebula, purple, blue, navy, black, dark, galaxies, starry, "milky way", dusting, sprinkling, glittering, twinkling, twinkle, glow, glowing, glitter, sparkle, sparkles, sparkling, sparkly, glittery, nasa, hubble , pretty, astronomy, astronomical, fantasy, beauty, texture, beautiful, amazing, universe, cosmology, stellar, geek, geeky, nerd, nerdy, geeks, nerds, science, telescope, hipster, pink,"outer space", outerspace, exploration, explore, exploring, explorer, futuristic, future,

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Eye - Stellar Nursery R136 on nebula background Square Sticker

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


tagged with: astronomy, envelope sealers, eye, stellar nursery, r136, 30 doradus nebula, massive stars, tarantula nebula, hrbstslr dorneblmc, galaxy stars, large magellanic cloud, star cluster, amazing hubble images

Galaxies, Stars and Nebulae series On a background of the Pelican and North American nebulae, an eye made from hundreds of brilliant blue stars wreathed by warm, glowing clouds appear in this the most detailed view of the largest stellar nursery in our local galactic neighborhood. The massive, young stellar grouping, called R136, is only a few million years old and resides in the 30 Doradus (or Tarantula) Nebula, a turbulent star-birth region in the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way.
There is no known star-forming region in our galaxy as large or as prolific as 30 Doradus. Many of the diamond-like icy blue stars are among the most massive stars known. Several of them are over 100 times more massive than our Sun. These hefty stars are destined to pop off, like a string of firecrackers, as supernovas in a few million years. The image, taken in ultraviolet, visible, and red light by Hubble's Wide Field Camera 3, spans about 100 light-years.
The movement of the LMC around the Milky Way may have triggered the massive cluster's formation in several ways. The gravitational tug of the Milky Way and the companion Small Magellanic Cloud may have compressed gas in the LMC. Also, the pressure resulting from the LMC plowing through the Milky Way's halo may have compressed gas in the satellite. The cluster is a rare, nearby example of the many super star clusters that formed in the distant, early universe, when star birth and galaxy interactions were more frequent.
The LMC is located 170,000 light-years away and is a member of the Local Group of Galaxies, which also includes the Milky Way. The Hubble observations were taken Oct. 20-27, 2009. The blue color is light from the hottest, most massive stars; the green from the glow of oxygen; and the red from fluorescing hydrogen.

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image code: dorneblmc

image credit: Hubble's Wide Field Camera 3

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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)

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