Physics in the News

Thursday, September 11, 2014

Defying physics, engineers prove a magnetic field for light

An illustration of the nonreciprocity of the dynamics of light propagating in the forward (a) and the backward (b) direction. (Credit: Nature Photonics)
An illustration of the nonreciprocity of the dynamics of light propagating in the forward (a) and the backward (b) direction. (Credit: Nature Photonics)
via phys.org

Big Bang mystery extends into nearby galaxy, puzzling cosmologists

New observations of the star cluster Messier 54, shown above, reveal that it is just as strangely deficient in lithium as our own galaxy, deepening a mystery about the element's big bang origins. (Credit: ESO)
New observations of the star cluster Messier 54, shown above, reveal that it is just as strangely deficient in lithium as our own galaxy, deepening a mystery about the element’s big bang origins. (Credit: ESO)
via nationalgeographic

The quasar main sequence

This graph shows the distribution of about 20,000 luminous Sloan Digital Sky Survey quasars in the two-dimensional space of broad line width versus FeII strength, color-coded by the strength of the narrow [OIII] line emission. The strong horizontal trend is the main sequence of quasars driven by the efficiency of the black hole accretion, while the vertical spread of broad line width is largely due to our viewing angle to the inner region of the quasar. (Credit: Y. Shen, L. Ho, KIAA)
This graph shows the distribution of about 20,000 luminous Sloan Digital Sky Survey quasars in the two-dimensional space of broad line width versus FeII strength, color-coded by the strength of the narrow [OIII] line emission. The strong horizontal trend is the main sequence of quasars driven by the efficiency of the black hole accretion, while the vertical spread of broad line width is largely due to our viewing angle to the inner region of the quasar. (Credit: Y. Shen, L. Ho, KIAA)
via skyandtelescope

Looming crisis in physics, answer could be in other dimensions

via theepochtimes

Researcher probes nature’s building blocks in novel ways

To see something new, inventor, Raffi Budakian, had to get small — really small. The instrument he uses is as long as a human hair is wide and has the circumference of a virus.(Credit: The Budakian Group)
To see something new, inventor, Raffi Budakian, had to get small — really small. The instrument he uses is as long as a human hair is wide and has the circumference of a virus.(Credit: The Budakian Group)
via perimeterinstitute

Sun erupts with powerful Earth aimed solar flare

via discovery

Ultra-thin detector captures unprecedented range of light

“Graphene photothermoelectric detector device fabrication and principle of operation.” (Credit: Nature.com)
“Using a new operating principle called the “hot-electron photothermoelectric effect,” the research team created a device that is “as sensitive as any existing room temperature detector in the terahertz range and more than a million times faster,” says Michael Fuhrer, professor of physics at UMD and Monash University. The above image is a Graphene photothermoelectric detector device fabrication and principle of operation.” (Credit: Nature.com)
via spacedaily

Jellyfish flames on the ISS

via spacefellowship

A Lurking Companion Star Explains Enigmatic Supernova

The above sequence depicts a rare supernova explosion. Hubble images (bottom panel) correspond to an artist’s conception (top panel). (Credit: Kavli IPMU / NASA / Gastón Folatelli)
The above sequence depicts a rare supernova explosion. Hubble images (bottom panel) correspond to an artist’s conception (top panel). (Credit: Kavli IPMU / NASA / Gastón Folatelli)
via universetoday

Faster computers, electronic devices possible after scientists create large-area graphene on copper

this is a one centimeter by one centimeter graphene film transfer to a silicon wafer with a silicon dioxide top layer. (Credit: Xuesong Li and Weiwei Cai)
This is a one centimeter by one centimeter graphene film transfer to a silicon wafer with a silicon dioxide top layer. (Credit: Xuesong Li and Weiwei Cai)
via esciencenews

Humanoid robot, Nao, learns to drive its own car

via spectrum

Physics in the News

Wednesday, August 27, 2014

Clouds of water possibly found in brown dwarf atmosphere

Finding clouds of water floating in the atmosphere of an alien world is a significant find. Now, astronomers have reported preliminary findings that water clouds have been detected in the atmosphere of a brown dwarf, a mere 7.3 light-years from Earth.(Credit: NASA/JPL-Caltech, O'neil)
Finding clouds of water floating in the atmosphere of an alien world is a significant find. Now, astronomers have reported preliminary findings that water clouds have been detected in the atmosphere of a brown dwarf, a mere 7.3 light-years from Earth. (Credit: NASA, JPL-Caltech, O’neil)
via discovery

NASA explores the potential of origami in space

Shannon Zirbel with the solar panel array prototype, designed using the principles of origami, unfolded (Credit: BYU, Meier)
NASA mechanical engineer, Brian Trease, worked with Brigham Young University doctoral student Shannon Zirbel, and collaborated with origami expert Robert Lang, who has long been active in promoting it in science, and BYU professor Larry Howel, to combine different traditional folds for an 82-foot solar array that whirls down to 8.9 feet. (Credit: BYU, Meier)
via hyperallergic

Physicists want to know if we’re all actually living in a 2-D hologram

"If we find a noise we can't get rid of, we might be detecting something fundamental about nature - a noise that is intrinsic to space-time," said Physicist Aaron Choi, the holometer project’s lead scientist. (Credit: NASA/ESA via Getty Images)
“If we find a noise we can’t get rid of, we might be detecting something fundamental about nature – a noise that is intrinsic to space-time,” said Physicist Aaron Choi, the holometer project’s lead scientist. (Credit: NASA, ESA)
via interactions

Best view yet of merging galaxies in distant Universe

In this picture, which combines views from Hubble and the Keck-II telescope on Hawaii (using adaptive optics), you can see a foreground galaxy that is acting as the gravitational lens. The galaxy resembles how our home galaxy, the Milky Way, would appear if seen edge-on. But around this galaxy there is an almost complete ring — the smeared out image of a star-forming galaxy merger far beyond. (Credit: NASA, ESA)
via spacetelescope

What is the Higgs Boson? China’s collider to study particle in unprecedented detail

With a circumference of 52km, the “Higgs Factory” would be almost twice the size of Europe's equivalent, and significantly more powerful. The Chinese said it is due to be completed by 2028. Image above is the Large Hadron Collider. (Credit: Getty)
With a circumference of 52km, the “Higgs Factory” would be almost twice the size of Europe’s equivalent, and significantly more powerful. The Chinese said it is due to be completed by 2028. Image above is the Large Hadron Collider. (Credit: Getty)
via cityam

A great view of colliding galaxies, thanks to magnifying glasses in the sky

This diagram shows how the effect of gravitational lensing around a normal galaxy focuses the light coming from a very distant star-forming galaxy merger to created a distorted, but brighter view. (Credit: ESA/ESO/M. Kornmesser)
This diagram shows how the effect of gravitational lensing around a normal galaxy focuses the light coming from a very distant star-forming galaxy merger to created a distorted, but brighter view. (Credit: ESA/ESO/M. Kornmesser)
via washingtonpost

The $2.5-billion Mars Rover’s unexpected wheel damage just two years into the ission: What NASA’s doing about it

Evidence of a damaged wheel. (Credit: NASA/JPL-Caltech/MSSS)
Evidence of a damaged wheel. (Credit: NASA/JPL-Caltech/MSSS)
via theblaze

Scientists craft atomically seamless, thinnest-possible semiconductor junctions

As seen under an optical microscope, the heterostructures have a triangular shape. The two different monolayer semiconductors can be recognized through their different colors. (Credit: U of Washington)
As seen under an optical microscope, the heterostructures have a triangular shape. The two different monolayer semiconductors can be recognized through their different colors. (Credit: U of Washington)
via phys.org
“It’s the most distant object for which the spin has been directly measured. The universe is about 13.7 billion years old, so this is going significantly back towards when the epoch of furious galaxy formation was happening,” says, Astrophysicist, Mark Reynolds.
via motherboard