Researchers investigates the properties of gravitational waves and binary black holes if they formed inside a collapsing star.
Japanese researchers from Osaka University have developed a muon-based approach to non-destructive investigations for unique asteroid samples.
Organic laser diodes under electrical pumping are long-term and challenging goal for organic semiconductors. Recently, a research team led by Prof. X. Liu at Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences has realized electrically pumped organic semiconductor lasers with a high quality factor microcavity structure that possess extremely low threshold and clear light gain amplification behaviors.
Researchers at IIS, University of Tokyo simulated supercooled liquids subjected to Couette shear flow. The rapid drop in viscosity under shear was related to the liquids' two-body structural entropy. The study showed that the structural anisotropy along the extensional direction of the shear flow, measured using the two-body entropy, could fully describe sheared dynamics and shear thinning. These results may uncover the mechanism behind an old problem at the heart of fluid physics, shear thinning.
A paper reviews recent progress on turbulent broadening of cloud droplet size distributions and warm rain initiation.
A pair of physicists provides a theoretical roadmap that could point to the discovery of an exotic magnetically ordered state of matter dubbed a 'chiral spin liquid.'
Engineers from Dartmouth's Thayer School of Engineering have produced a new imaging technology that may revolutionize medical and life sciences research, security, photography, cinematography and other applications that rely on high-quality, low-light imaging. Called the Quanta Image Sensor, or QIS, this next generation of light sensing technology is documented in the upcoming issue of Optica, the journal of The Optical Society.
The use of probiotics and xylitol chewing gum to alleviate sore throat symptoms -- as an alternative to antibiotics -- appears to have no effect, according to a randomized controlled trial (RCT) published in CMAJ.
Blazars are high-energy objects emitting relativistic jets which are perpendicular to their accretion disks. The latter supposedly have supermassive black holes in their centers. Blazars' jets are angularly oriented towards Earth. Blazars are characterized by rapid and noticeable changes in brightness in all frequencies.
Scientists at the US Department of Energy's Ames Laboratory have discovered a new process to sheathe metal under a single layer of graphite which may lead to new and better-controlled properties for these types of materials.