EPFL researchers use interference in the motion of a micrometre-size drum to route microwave signals in a single direction.
Supermassive black holes found in the centers of galaxies can form gravitationally bound pairs when galaxies merge, according to a study published in the Sept. 18 issue of Nature Astronomy.
Researchers have developed a system that can simultaneously deliver watts of power and transmit data at rates high enough to stream video over the same wireless connection. By integrating power and high-speed data, a true single 'wireless' connection can be achieved.
The team of researchers, which included physicists from Russia and Japan, has demonstrated a theoretical mechanism for achieving half-metallicity that requires no transition metal atoms. This possibility would have a number of useful applications, including in implantable devices.
As demand grows for more versatile, advanced robotics and other technologies, the need for components that can enable these applications also increases. Producing such components en masse has been a major challenge. But now, in ACS Applied Materials & Interfaces, researchers report that they have developed a way to help meet this need by printing electronics that can fold themselves into a desired shape.
Lithium-ion batteries have become a ubiquitous part of the digital revolution, but not without a serious setback. They keep spontaneously exploding, and consumers are getting sick of it. So, what's the underlying issue, and how can science address it? Learn about the chemistry of battery fires in this new video from Reactions: https://youtu.be/pY-kzHn9kvo
New 3-D visualizations that reveal how flames respond to electric fields could help improve combustion efficiency and reduce pollution.
Researchers at the U.S. Army Research Laboratory and the University of Maryland have developed for the first time a lithium-ion battery that uses a water-salt solution as its electrolyte and reaches the 4.0 volt mark desired for household electronics, such as laptop computers, without the fire and explosive risks associated with some commercially available non-aqueous lithium-ion batteries.
New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab nebula -- one of the most iconic objects in the sky -- has its origin in one population of electrons and must be produced in a different way than scientists have traditionally thought. The results have implications for our understanding of how cosmic rays attain their incredible energies.
New research led by Case Western Reserve University indicates that tiny holes and cracks in a material -- changes in the microstructure -- can control how the material becomes electrically charged through friction.