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Twisting the light away using ultrasmall holes

Twisting the light away using ultrasmall holes

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A new study shows that light transmitted through apertures smaller than the wavelength of light go through a radical change, splitting into two symmetrical counter-rotating polarisations.

News Release June 20 2014 Macquarie University

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Astronomers pierce galactic clouds to shed light on black hole development

Astronomers pierce galactic clouds to shed light on black hole development

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BLACKSBURG, Va., June 20, 2014 – An international team of scientists including a Virginia Tech physicist have discovered that winds blowing from a supermassive black hole in a nearby galaxy work to obscure observations and X-rays.

The discovery in Thursday’s issue of Science Express sheds light on the unexpected behavior of black holes, which emit large amounts of matter through powerful,…

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Spitzer Spies an Odd, Tiny Asteroid

Spitzer Spies an Odd, Tiny Asteroid

SST and the Milky Way, an Artist's Concept

The Spitzer Space Telescope whizzes in front of a brilliant, infrared view of the Milky Way galaxy's plane in this artistic depiction.

The mission marks the last of NASA's Great Observatories, a program that includes the Hubble Space Telescope, the Chandra X-Ray Observatory and the Compton Gamma-Ray Observatory.

In addition to studying many of the coldest, oldest and most dust-enshrouded objects and processes in the universe, the mission will also be an important part of NASA's Origins Program, which seeks to answer the questions: Where did we come from? Are we alone?

Astronomers using NASA’s Spitzer Space Telescope have measured the size of an asteroid candidate for NASA’s Asteroid Redirect Mission (ARM), a proposed spacecraft concept to capture either a small asteroid, or a boulder from an asteroid. The near-Earth asteroid, called 2011 MD, was found to be roughly 20 feet (6 meters) in size, and its structure appears to contain a lot of empty space, perhaps…

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Scientists Take First Dip into Water’s Mysterious ‘No Man’s Land’

Scientists Take First Dip into Water’s Mysterious ‘No Man’s Land’

An X-ray laser pulse at SLAC’s Linac Coherent Light Source probes a supercooled water droplet (center, left). The speed and brightness of the X-ray pulses allowed researchers to study water molecules in the instant before freezing. (Greg Stewart/SLAC)

Menlo Park, Calif. — Scientists at the Department of Energy’s SLAC National Accelerator Laboratory have made the first structural observations of liquid water at temperatures down to minus 51 degrees Fahrenheit, within an elusive “no man’s land” where water’s strange properties are super-amplified.

News Release June 18, 2014 SLAC National Accelerator Laboratory

 

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Scientists Take First Dip into Water’s Mysterious ‘No Man’s Land’

Scientists Take First Dip into Water’s Mysterious ‘No Man’s Land’

An X-ray laser pulse at SLAC’s Linac Coherent Light Source probes a supercooled water droplet (center, left). The speed and brightness of the X-ray pulses allowed researchers to study water molecules in the instant before freezing. (Greg Stewart/SLAC)

Menlo Park, Calif. — Scientists at the Department of Energy’s SLAC National Accelerator Laboratory have made the first structural observations of liquid water at temperatures down to minus 51 degrees Fahrenheit, within an elusive “no man’s land” where water’s strange properties are super-amplified.

News Release June 18, 2014 SLAC National Accelerator Laboratory

 

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A sharper image of the earth’s structure

A sharper image of the earth’s structure

Geophysicists use seemingly worthless data to draw a sharper picture of the Earth. (Graphics: Globe / ETH Zürich)

Today, thanks to earthquakes, we know fairly accurately how the solid earth is constructed. Geophysicist Andreas Fichtner is now taking things a step further: he gains new insights into our planet’s interior from seemingly useless data.

Research News June 18, 2014 By Felix Würsten ETH Zurich

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Modelling how neurons work together

Modelling how neurons work together

Multiphoton microscopy of mouse motor neurons

Credit: Zeiss Microscopy via flickr

A highly accurate model of how neurons behave when performing complex movements could aid in the design of robotic limbs which behave more realistically.


Accurate models like these can really aid in the understanding of the incredibly complex dynamics at work in the human brain

Guillaume Hennequin

Research News June 18, 2014 University of Cambridge

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Taking pictures with protons

Taking pictures with protons

A wristwatch was one of the first items imaged by the new proton radiography system. At left, the inner workings of the mechanism are visible.

A new facility for using protons to take microscopic images has been commissioned at the ring accelerator of the GSI Helmholtzzentrum für Schwerionenforschung GmbH in Germany.

U.S., German, Russian collaboration conducts first experiments in Germany

“Combining the experience of this international collaboration has proven to be very productive,”
said Frank Merrill.

 

News ReleaseJune 17,…

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Not so fast – our fishy friends can also feel pain

Not so fast – our fishy friends can also feel pain

Culum Brown uses Pavlovian conditioning

Review of mental ability shows fish are on par with most animals

Αξιολόγηση των νοητικών ικανοτήτων των ψαριών τα εντάσσει στο ίδιο επίπεδο με τα περισσότερα ζώα.

Αν πιστεύουμε ότι τα ψάρια δεν νοιώθουν πόνο ή δεν ενδιαφέρονται για το πως τους φερόμαστε όταν τα πιάνουμε, θα πρέπει να αναθεωρήσουμε σύμφωνα με τον επικ. Καθηγητή Culum Brown, στο πεδίο των Νοητικών Επιστημών που ερευνά την…

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Gums Under Attack
A section of a mast cell. The cytoplasm, in yellow, releases granules, in green, in response to inflammation. Photo: CNRI/Science Source

Tufts researchers investigate stress as a potential cause of periodontal disease

Το άγχος ως πιθανό αίτιο της περιοδοντικής νόσου, εξετάζεται από ερευνητές στο πανεπιστήμιο Tufts

 

Article By Michael Blanding June 13, 2014 Tufts University

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