Monday 20 April 2015

Scaled-up version of our solar system 130 light-years away

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Astronomers has obtained the first results from the LEECH exoplanets survey. The findings reveal new insights into the architecture of HR8799, a 'scaled-up' version of our solar system 130 light-years from Earth.
via Science Daily
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Engineers elucidate why skin is resistant to tearing

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Skin is remarkably resistant to tearing and a team of researchers from the University of California, San Diego

The post Engineers elucidate why skin is resistant to tearing has been published on Technology Org.

 
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Black hole hunters tackle a cosmic conundrum

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Astrophysicists have not only proven that a supermassive black hole exists in a place where it isn't supposed to be, but in doing so have opened a new door to what things were like in the early universe.
via Science Daily
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Vintage Astronomy, Celestial Planisphere Map Posters

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


tagged with: antique, constellations, retro, planisphere, americana, vintage illustration, norhtern hemisphere, celestial map, star chart, astronomy, antique celestial

Vintage illustration astronomy and antique celestial map by Joseph (James) Moxon (1627-1691). Star chart featuring a world planisphere and celestial sphere - both are surrounded by scenes from the Old and New Testaments including vignettes of the Creation, the Garden of Eden, the Deluge, Moses, the Crucifixion and angels observing the Holy City. Created circa 1691 -1699.

Joseph Moxon was a hydrographer to Charles II, was an English printer of mathematical books and maps, a maker of globes and mathematical instruments, and mathematical lexicographer. Joseph Moxin produced the first English language dictionary devoted to mathematics. In November 1678 he became the first tradesman to be elected as a Fellow of the Royal Society.

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Theoretical framework for graphene physics established

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A team of researchers has established a theoretical framework to understand the elastic and electronic properties of graphene. Graphene, a single-atom-thick sheet of carbon atoms arranged in a honeycomb-like lattice, is one of the simplest materials with unrivalled mechanical and electronic properties. The material has been hailed by scientists as an extremely good conductor of electrons due to its strength and its light weight.
via Science Daily

Pulsing light may indicate supermassive black hole merger

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As two galaxies enter the final stages of merging, scientists have theorized that the galaxies' supermassive black holes will form a 'binary,' or two black holes in such close orbit they are gravitationally bound to one another. In a new study, astronomers present direct evidence of a pulsing quasar, which may substantiate the existence of black hole binaries.
via Science Daily
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Understanding Greenland’s wild climate swings

Science Focus

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If we polled climate scientists for the weirdest thing we learned by drilling into Greenland’s ice, Dansgaard-Oeschger cycles would be strong contenders. During the colder parts of Greenland’s ice age history, it has frequently experienced a wicked case of climate whiplash. Parts of Greenland could endure a warming of 10 degrees Celsius in the space of a couple of decades. That would be followed by centuries of cooling and, eventually, another abrupt warming.

Look at ocean sediment cores in the Atlantic and you’ll see something else happening at the same time: sand and stones appearing in the seafloor mud, carried there by dirty, slowly melting icebergs. (In fact, some icebergs may have made it as far as Florida.) These impressive launches of iceberg armadas are called Heinrich events—and there’s clearly some connection between Heinrich and Dansgaard-Oeschger.

We’re pretty sure these wild events relate to the downward flow of salty, dense surface water in the North Atlantic, which completes the conveyor belt that turns northward-flowing surface water into southward-flowing deep water. If the salty surface water loses its greater density, the conveyor belt—and the warmth it carries northward—seizes up. Conversely, switching the conveyor belt back on can rapidly deliver warmth northward, which may explain some of the sudden warmings.

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 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/8Gkf4BagfAE/
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Swimming Algae Offer Researchers Insights Into Living Fluid Dynamics

Science Focus

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None of us would be alive if sperm cells didn’t know how to swim, or if the cilia

The post Swimming Algae Offer Researchers Insights Into Living Fluid Dynamics has been published on Technology Org.

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/IH3-TXpsxqM/
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Trifid Nebula, Messier 16 Sticker

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


tagged with: breathtaking astronomy images, star forming nebulae, trfdnbl, star nurseries, galaxies, nebulae, star factory, trifid nebula, european southern observatory, clusters of stars, factories for stars, eso, vista

Galaxies, Stars and Nebulae series A fantastic picture from our universe featuring the massive star factory known as the Trifid Nebula.

It was captured in all its glory with the Wide-Field Imager camera attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile.
So named for the dark dust bands that trisect its glowing heart, the Trifid Nebula is a rare combination of three nebulae types that reveal the fury of freshly formed stars and point to more star birth in the future. The field of view of the image is approximately 13 x 17 arcminutes.
It's an awe-inspiring, breathtaking image that reveals some of the wonder that is our universe.

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image code: trfdnbl

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

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Cold Spot suggests largest structure in Universe: A supervoid 1.3 billion light years across

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In 2004, astronomers examining a map of the radiation left over from the Big Bang discovered the Cold Spot, a larger-than-expected unusually cold area of the sky. The physics surrounding the Big Bang theory predicts warmer and cooler spots of various sizes in the infant universe, but a spot this large and this cold was unexpected.
via Science Daily
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Researchers find a way to convert waste heat to electricity at nano-scale

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(Phys.org)—A team of researchers working at Germany's University of Würzburg has shown that a theory developed to describe a way to convert waste heat in microelectronics to electricity can work in the real world. In their paper published in the journal Physical Review Letters, the team describes how they used quantum dots to create a three terminal device capable of generating electricity by harvesting waste heat.

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Total Solar Eclipse over Svalbard

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Zazzle Space Gifts for young and old

Eye in Orion Black Handle Electric Guitar Room Decal

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


tagged with: cosmic, astronomy, funky, eye, orion nebula, bright, abstract digital art, aqua, electric, guitar, colorful, shape, space, image, iris, nasa hubble, space art, streaks, pink, blue

Abstract digital artwork inspired by one of NASA/Hubble's images of the Orion Nebula on the shape of an electric guitar shape.

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Hubble's Sharpest View of the Orion Neb Powiscases 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: hubble's, sharpest, view, of-the, orion, nebulae, powiscases

Thousands of stars are forming in the cloud of gas and dust known as the Orion nebula. More than 3,000 stars of various sizes appear in this image. Some of them have never been seen in visible light. Credit: NASA,ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team

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Icy tendrils reaching into Saturn ring traced to their source

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Long, sinuous, tendril-like structures seen in the vicinity of Saturn's icy moon Enceladus originate directly from geysers erupting from its surface, according to scientists studying images from NASA's Cassini spacecraft.

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Thor’s neon-hued helmet

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Space Science Image of the Week: Intense X-rays have sculpted bubbles, filaments and rippling outbursts within the Thor’s Helmet nebula, as seen by ESA’s XMM-Newton
via ESA Space Science
http://www.esa.int/spaceinimages/Images/2015/04/Intense_X-rays_sculpt_Thor_s_neon-hued_helmet

Sea sponge anchors are natural models of strength

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The Venus’ flower basket sea sponge has hair-like appendages that hold it in place on the sea floor.

The post Sea sponge anchors are natural models of strength has been published on Technology Org.

 
#materials 
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Hubble Space Poster

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


tagged with: hubble, nasa, space, astronomy, exploration, universe, nebula, telescope

Add mattes and frame this poster to suit your decor. Makes a fantastic gift. The images shown below were created by the Office of Public Outreach at the Space Telescope Science Institute (STScI). The Institute has been contracted by NASA to create products and services that return the scientific discoveries of the Hubble Space Telescope to the American public.

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The Orion Nebula iPad 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: pink, red, orion, nebula, nasa, hubble, space, images, pretty, beautiful, artistic, amazing, awe-inspiring, astronomy

A lovely detailed image of the Orion Nebula in infrared thanks to NASA/Hubble.

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