Saturday 11 April 2015

Discovery could yield more efficient portable electronics, solar cells

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By figuring out how to precisely order the molecules that make up what scientists call organic glass –

The post Discovery could yield more efficient portable electronics, solar cells has been published on Technology Org.

 
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Should humans have our own geological epoch?

Science Focus

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Humans have had such a marked impact on the earth that, in 2000, Paul Crutzen and Eugene Stormer proposed the term “anthropocene” to acknowledge the geological and ecological impact of humans. Now “anthropocene” is set to possibly become the formally defined geological unit “Anthropocene," through a proposal that will be fully developed by next year.

In the midst of the debate, a paper in Science this week suggests that the term should stay informal. The authors argue that there’s no single date that properly fulfils the criteria we've set for the beginning of a geological epoch.

The move to formalize the Anthropocene has been spearheaded by Paul Crutzen, a Nobel prize-winning chemist, and has significant support from many other researchers. In 2002, Crutzen suggested in Nature that the Anthropocene began in the late 18th century, with the invention of the steam engine. In geological terms, this is the point at which air trapped in polar ice begins to show increasing levels of carbon dioxide and methane.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/WSqp8tYxWdg/
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Electrical control of quantum bits in silicon paves the way to large quantum computers

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Scientists have encoded quantum information in silicon using simple electrical pulses for the first time, bringing the construction of affordable large-scale quantum computers one step closer to reality.

via Science Daily

Accelerating universe? Not so fast

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Astronomers have found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before. The findings have implications for our understanding of how fast the universe has been expanding since the Big Bang.

via Science Daily

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Crab Pulsar Time Lapse - Neutron Star Stickers

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Galaxies, Stars and Nebulae series

Multiple observations made over several months with NASA's Chandra X-ray Observatory and the Hubble Space Telescope captured the spectacle of matter and antimatter propelled to near the speed of light by the Crab pulsar, a rapidly rotating neutron star the size of Manhattan.

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Image code: crbplsr

Image credit: NASA's Chandra X-ray Observatory and the Hubble Space Telescope

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Venus in the West

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In the coming days, Venus shines near the western horizon at sunset. To find Earth's sister planet in twilight skies just look for the brilliant evening star. Tonight very close to the Pleiades star cluster, Venus dominates this springtime night skyscape taken only a few days ago near the town of Lich in central Germany. Also known as the Seven Sisters, the stars of the compact Pleiades cluster appear above Venus in this picture. The budding tree branches to its left frame bright star Aldebaran, the eye of Taurus the Bull, and the V-shaped Hyades star cluster.
Tomorrow's picture: Sunday's Childe
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Eye in Orion Cover For iPad Air

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Abstract digital artwork inspired by one of NASA/Hubble's images of the Orion Nebula.

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Optimising soft-optoelectronics materials through molecular engineering

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The molecules used to make optoelectronic devices can be engineered to balance the chemical interactions within them and

The post Optimising soft-optoelectronics materials through molecular engineering has been published on Technology Org.

 
#materials 
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Planets of the Solar System Posters

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ImageID: CB061976 / Corbis / Planets of the Solar System/ /

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Crab Pulsar Time Lapse - Neutron Star Sticker

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


tagged with: stars, galaxies, astronomy, tarnebes, tarantula nebula, r136, massive stars, youngest stars, supernovae

Galaxies, Stars and Nebulae series

Multiple observations made over several months with NASA's Chandra X-ray Observatory and the Hubble Space Telescope captured the spectacle of matter and antimatter propelled to near the speed of light by the Crab pulsar, a rapidly rotating neutron star the size of Manhattan.

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

Image code: crbplsr

Image credit: NASA's Chandra X-ray Observatory and the Hubble Space Telescope

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

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!


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