Friday 27 February 2015

Bringing clean energy a step closer

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Researchers have made an inexpensive metal-free catalyst that performs as well as costly metal catalysts at speeding the oxygen reduction reaction in an acidic fuel cell, and is more durable. The catalyst is made of sheets of nitrogen-doped graphene that provides great surface area, carbon nanotubes that enhance conductivity, and carbon black particles that separate the layers allowing the electrolyte and oxygen to flow freely, which greatly increased performance and efficiency.

via Science Daily

Researchers develop new technique for making graphene competitor molybdenum disulfide

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Graphene, a single-atom-thick lattice of carbon atoms, is often touted as a replacement for silicon in electronic devices

The post Researchers develop new technique for making graphene competitor molybdenum disulfide has been published on Technology Org.

 
#materials 
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Vintage Astronomy Celestial Stars in the Night Sky Print

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


tagged with: retro, vintage, americana, nostalgia, nostalgic, celestial map, star chart, planisphere, astronomy, zodiac constellations, antique celestial

Vintage illustration astronomy and celestial star chart map by the Dutch cartographer family Frederik de Wit. Frederik de Wit can refer to any of three members (Father, son or grandson) of a family of Dutch engravers, cartographers and publishers. The senior de Wit opened a printing office in Amsterdam under the name "De Witte Pascaert".
Planisphæri cœleste, 1680, is an antique celestial planisphere featuring the constellations of the northern and southern hemispheres (with the signs of the zodiac), the earth, sun and phases of the moon.

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

New research signals big future for quantum radar

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A prototype quantum radar that has the potential to detect objects which are invisible to conventional systems has been developed by an international research team led by a quantum information scientist at the University of York.



Zazzle Space market place

New research signals big future for quantum radar

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A prototype quantum radar that has the potential to detect objects which are invisible to conventional systems has been developed by an international research team led by a quantum information scientist at the University of York.



Zazzle Space market place

“Punting” on evolution: Presidential hopeful Scott Walker dodges science

Science Focus

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Given that February 12 would be Charles Darwin's 206th birthday, having people spare some thought for the theory of evolution doesn't seem outrageously out of place this week. But, for a US politician visiting London, a question on the matter was clearly unwelcome.

Scott Walker, governor of Wisconsin and possible presidential candidate, was obviously hoping for a chance to have a few experiences that would make him seem more credible on the foreign policy scene. But the host of a British TV show asked some questions that, for many in the US, touch on matters of personal belief and the ability to think critically: "Are you comfortable with the idea of evolution? Do you believe in it? Do you accept it?" (A video that includes these questions along with extensive commentary is available here.)

Walker, rather than oblige his host, literally answered that he was going to dodge the question, saying, "For me, I'm going to punt on that one as well. That's a question a politician shouldn't be involved in one way or another."

Read 7 remaining paragraphs | Comments

 
#science 
 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/seugAcyyxVo/
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Quantum mechanical behaviour at the macroscale

Science Focus

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Most quantum physics research to date has used particles such as atoms and electrons to observe quantum mechanical

The post Quantum mechanical behaviour at the macroscale has been published on Technology Org.

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/WqQgzn0sJ2g/
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Long Lovejoy and Little Dumbbell

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Buffeted by the solar wind, Comet Lovejoy's crooked ion tail stretches over 3 degrees across this telescopic field of view, recorded on February 20. The starry background includes awesome bluish star Phi Persei below, and pretty planetary nebula M76 just above Lovejoy's long tail. Also known as the Little Dumbbell Nebula, after its brighter cousin M27 the Dumbbell Nebula, M76 is only a Full Moon's width away from the comet's greenish coma. Still shining in northern hemisphere skies, this Comet Lovejoy (C/2014 Q2) is outbound from the inner solar system some 10 light-minutes or 190 million kilometers from Earth. But the Little Dumbbell actually lies over 3 thousand light-years away. Now sweeping steadily north toward the constellation Cassiopeia Comet Lovejoy is fading more slowly than predicted and is still a good target for small telescopes.
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Planetary Nebula Wall Decal

Here's a great wall decal featuring a beautiful image from deep space


tagged with: nebula, black, space, hole, turquoise, blue, green, stars, astronomy, awesome, clouds, gaseous, window, light

Awesome turquoise color gaseous clouds and stars in this nebula wall decal

»visit the minx267 store for more designs and products like this
Click to customize.
via Zazzle Astronomy market place

Crab Nebula – Hubble Telescope 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: crab nebula, nasa, universe, stars, outer space, hubble telescope, cosmos, astronomy, nature, space picture, esa, nebula, hubble space telescope, astronomical, cosmology, space photograph, crab nebula photograph, space, natural, science, abstract, space photo, space image, nebula picture, nebula photograph, nebula photo, nebula image, blue, turquoise, cyan, space gifts, space products

Hubble photograph of the Crab Nebula

This is a composite photograph produced from 24 individual images taken by the Hubble Space Telescope, and is the most detailed image of the Crab Nebula that has been produced to date.
Credit: NASA, ESA and Allison Loll/Jeff Hester (Arizona State University). Acknowledgement: Davide De Martin (ESA/Hubble)

You can personalise the design further if you'd prefer, such as by adding your name or other text, or adjusting the image - just click 'Customize it' to see all the options. IMPORTANT: If you choose a different sized version of the product, it's important to click Customize and check the image in the Design view to ensure it fills the area to the edge of the product, otherwise white edges may be visible.

See more in my shop
If you like this product, you can find more like it in my store:

Click here to view all the other items with this design.

Click here to see a wide range of other space designs.

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

How Iron Feels the Heat

original post »

As you heat up a piece of iron, the arrangement of the iron atoms changes several times before

The post How Iron Feels the Heat has been published on Technology Org.

 
#materials 
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Vintage Astronomy Celestial Renaissance Moon Stars Poster

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


tagged with: landscape, antique, constellations, stars, retro, moon, americana, nostalgic, celestial, vintage illustration, antique celestial

Vintage illustration astronomy and celestial black and white Renaissance era antique drawing of a landscape and the moon (lune) in the night sky with stars and constellations. People are standing next to a river, bridge and buildings. Created in 1683 by Allain Manesson Mallet (1630 – 1706), a French cartographer and engineer.

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