Close-up view of the next-generation microshutter arrays — designed to accommodate the needs of future observatories — during the fabrication process.
In the newest episode of BrainCraft, host Vanessa Hill explores some cool new concepts for glasses that may help blind people see again!
Craniofacial growth patterns in mouse models for Apert syndrome. Apert syndrome is caused by two neighboring mutations on Fibroblast growth factor receptor 2 (FGFR2). Multimodal imaging and segmentation was used to visualize and quantitate overall morphology of soft tissues (gray), skull (yellow), inner ear (purple), nasopharynx (pink) and globe of the eye (green) in Fgfr2+/S252W Apert syndrome mice and Fgfr2+/P253R Apert syndrome mice at embryonic day 17.5 (E17.5) (left) and on the day of birth (P0) (right) (Fgfr2+/S252W mice are shown).
Image: Susan Motch Perrine/Penn State
Napa Valley quake. The biggest earthquake in 25 years struck California’s Napa Valley in the early hours of 24 August 2014. By processing two Sentinel-1A images, which were acquired on 7 August and 31 August 2014 over this wine-producing region, an interferogram was generated. The two round shapes around Napa valley, which are visible in the central part of the image show how the ground moved during the quake. Deformation on the ground causes phase changes in radar signals that appear as the rainbow-coloured patterns. Each colour cycle corresponds to a deformation of 28 mm deformation. The maximum deformation is more than 10 cm, and an area of about 30x30 km was affected significantly.
"Spooky" Quantum Entanglement Reveals Invisible Objects (via National Geographics).
In the new experiment, the physicists entangled photons in two separate laser beams with different wavelengths, and hence color: one yellow and one red.[…] The team passed the red light beam through etched stencils and into cutouts of tiny cats and a trident, about 0.12 inches (3 millimeters) tall. The yellow beam traveled on a separate line, never hitting the objects. What’s more, the etched shapes were designed to be invisible to yellow light. […] After the red light passed by the objects, the physicists ran it together with the yellow laser beam at both parallel and right angles. The red light was then discarded, and the yellow light headed for a camera. There, that yellow light revealed a picture of the object. And a negative of the picture emerged from the light that had interfered at a right angle.
"The phenomena really arises from the interference of the photons together,” Lemos says. “It’s not that the red photons have changed the yellow ones, it’s that quantum mechanics says they have to share [wavelength] phases which we can detect to see a picture.”
Nothing spooky (unless you consider nature is spooky), and nothing new because quantum entanglement is known (and accepted) from 1935 or so. But an interesting experiment anyway, of course.