Reflections in the eye contain identifiable faces
Meta-hologram produces dual images and multiple colors (w/ Video)
Harmonic holograms: High-speed three-dimensional imaging captures biological dynamics
Squeezing light into metals: Team controls conductivity with inkjet printer
Using an inexpensive inkjet printer, University of Utah electrical engineers produced microscopic structures that use light in metals to carry information. This new technique, which controls electrical conductivity ...
Image anomalies cast shadow on acid-bath stem-cell study
Flowing water on Mars appears likely but hard to prove
(Phys.org) —Martian experts have known since 2011 that mysterious, possibly water-related streaks appear and disappear on the planet's surface. Georgia Institute of Technology Ph.D. candidate Lujendra Ojha ...
Credit card-sized device could analyze biopsy, help diagnose pancreatic cancer in minutes
(Phys.org) —Pancreatic cancer is a particularly devastating disease. At least 94 percent of patients will die within five years, and in 2013 it was ranked as one of the top 10 deadliest cancers.
Study shows extra Amazon greenness during drought an optical illusion
Understanding secondary light emission by plasmonic nanostructures may improve medical imaging
Applications in imaging and sensing typically involve the emission of light at a different wavelength than the excitation, or "secondary light emission." The interpretation of resonant secondary light emission ...
Researchers lay out theory for metamaterials that act as an analog computer
The field of metamaterials has produced structures with unprecedented abilities, including flat lenses, invisibility cloaks and even optical "metatronic" devices that can manipulate light in the way electronic ...
New smartphone app helps blind find their way inside buildings
NASA Mars spacecraft reveals a more dynamic red planet
(Phys.org) —NASA's Mars Reconnaissance Orbiter has revealed to scientists slender dark markings—possibly due to salty water - that advance seasonally down slopes surprisingly close to the Martian equator.
Coal yields plenty of graphene quantum dots
The prospect of turning coal into fluorescent particles may sound too good to be true, but the possibility exists, thanks to scientists at Rice University.
Manipulating electron spin mechanically
(Phys.org) —Contrary to many textbook illustrations, electrons aren't just balls floating around an atom. In quantum theory, they're more like little tops, exhibiting "spin," and each creating its own tiny ...