Using the Subaru Telescope, researchers have found evidence that enigmatic objects in nearby galaxies—called ultra-luminous X-ray sources—exhibit strong outflows created as matter falls onto their black holes at unexpectedly high rates. The strong outflows suggest that black holes in these ULXs must be much smaller than expected. Curiously, these objects appear to be "cousins" of one of the most exotic objects in our own Milky Way Galaxy.
The plastic used to make garbage bags also makes a good base for building low-temperature heat...
City College of New York researchers led by chemist George John have developed an eco-friendly...
In research published in Cancer Cell, Thomas Burris, chair of pharmacology and physiology at...
Research led by Michigan State University could someday lead to the development of new and improved semiconductors. In a paper, scientists detailed how they developed a method to change the electronic properties of materials in a way that will more easily allow an electrical current to pass through.
The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be added.
A new route to ultrahigh density, ultracompact integrated photonic circuitry has been discovered by researchers. The Berkeley Lab team has developed a technique for effectively controlling pulses of light in closely packed nanoscale waveguides, an essential requirement for high-performance optical communications and chip-scale quantum computing.
An unmanned SpaceX rocket carrying supplies to the International Space Station broke apart Sunday shortly after liftoff. It was a severe blow to NASA, the third cargo mission to fail in eight months.
Researchers at Oak Ridge National Laboratory have developed a new method to manipulate a wide range of materials and their behavior using only a handful of helium ions. The team’s technique advances the understanding and use of complex oxide materials that boast unusual properties such as superconductivity and colossal magnetoresistance but are notoriously difficult to control.
Planets tend to cool as they get older, but Saturn is hotter than astrophysicists say it should be without some additional energy source. The unexplained heat has caused a two-billion-year discrepancy for computer models estimating Saturn's age.
Unseen areas are troublesome for police and first responders: Rooms can harbor dangerous gunmen, while collapsed buildings can conceal survivors. Now Bounce Imaging, founded by an Massachusetts Institute of Technology alumnus, is giving officers and rescuers a safe glimpse into the unknown.
From gummy bears to silky mousses, gelatin is essential for making some of our favorite sweets. Now scientists are exploring another use for the common food ingredient: spinning it into yarn so it can be made into clothing. And because gelatin comes from livestock by-products, the new technique would provide an additional use for agricultural leftovers. The report appears in Biomacromolecules.
If you picture a solar panel, it’s most likely dark blue or black, and rigid and flat. Now imagine one that’s semi-transparent, ultra-thin and bendable. Scientists are closing in on making the latter version a reality. They report in ACS Applied Materials & Interfaces the development of a see-through, bendable solar cell made entirely out of plastic. The device could help power the coming wave of flexible electronics.
Nature loves crystals. Salt, snowflakes and quartz are three examples of crystals—materials characterized by the lattice-like arrangement of their atoms and molecules. Industry loves crystals, too. Electronics are based on a special family of crystals known as semiconductors, most famously silicon. To make semiconductors useful, engineers must tweak their crystalline lattice in subtle ways to start and stop the flow of electrons.
Living cells can make a vast range of products for us, but they don’t always do it in the most straightforward or efficient way. Shota Atsumi, a chemistry professor at the Univ. of California, Davis, aims to address that through “synthetic biology”: designing and building new biochemical pathways within living cells, based on existing pathways from other living things.
Traumatic injuries, whether from serious car accidents, street violence or military combat, can lead to significant blood loss and death. But using a material derived from crustacean shells, scientists have now developed a foam that can be sprayed onto an open wound to stop the bleeding. They report their successful tests on pigs in ACS Biomaterials Science & Engineering.
On its own, dust seems fairly unremarkable. However, by observing the clouds of gas and dust within a galaxy, astronomers can determine important information about the history of star formation and the evolution of galaxies. Now, a Caltech-led team has been able to observe the dust contents of galaxies as seen just 1 billion years after the Big Bang.
Potential solutions to big problems continue to arise from research that is revealing how materials behave at the smallest scales. The results of a new study to understand the interactions of various metal alloys at the nanometer and atomic scales are likely to aid advances in methods of preventing the failure of systems critical to public and industrial infrastructure.
Univ. of Tokyo researchers have developed a new ink that can be printed on textiles in a single step to form highly conductive and stretchable connections. This new functional ink will enable electronic apparel such as sportswear and underwear incorporating sensing devices for measuring a range of biological indicators such as heart rate and muscle contraction.
Antibiotics are the mainstay in the treatment of bacterial infections, and together with vaccines, have enabled the near eradication of infectious diseases in developed countries. However, the overuse of antibiotics has also led to an alarming rise in resistant bacteria that can outsmart antibiotics using different mechanisms. Some pathogenic bacteria are thus becoming almost untreatable.
Researchers from the Univ. of Illinois at Urbana-Champaign have, for the first time, uncovered the complex interdependence and orchestration of metabolic reactions, gene regulation and environmental cues of clostridial metabolism, providing new insights for advanced biofuel development.
An electronics technology that uses the "spin" of atomic nuclei to store and process information promises huge gains in performance over today's electron-based devices. But getting there is proving challenging. Now researchers at the Univ. of Chicago's Institute for Molecular Engineering have made a crucial step toward nuclear spintronic technologies.
It took marine sponges millions of years to perfect their spike-like structures, but research mimicking these formations may soon alter how industrial coatings and 3-D printed to additively manufactured objects are produced. A new molecular paves the way for improved silica structure design by introducing microscopic, segmented screw-like spikes that can more effectively bond materials for commercial use.
The latest research from the Niels Bohr Institute shows that LEDs made from nanowires will use less energy and provide better light. The researchers studied nanowires using x-ray microscopy and with this method they can pinpoint exactly how the nanowire should be designed to give the best properties.
Imagine a soldier who can change the color and pattern of his camouflage uniform from woodland green to desert tan at will. Or an office worker who could do the same with his necktie. Is someone at the wedding reception wearing the same dress as you? No problem—switch yours to a different color in the blink of an eye.
When you're working with the brightest x-ray light source in the world, it's crucial that you make use of as many of the photons produced as possible. That's why physicists at the National Synchrotron Light Source II (NSLS-II) are developing new lenses that focus x-ray beams to smaller spot sizes made up of more photons for better imaging resolution.
Scientists at the U.S. Naval Research Laboratory have reported the first observation of spin precession of spin currents flowing in a silicon nanowire transport channel, and determined spin lifetimes and corresponding spin diffusion lengths in these nanoscale spintronic devices.
Biomedical engineers at the Univ. of Toronto have invented a new device that more quickly and accurately “listens in” on the chemical messages that tell our cells how to multiply. The tool improves our understanding of how cancerous growth begins, and could identify new targets for cancer medications.
Through precise structural control, A*STAR researchers have encoded a single pixel with two distinct colors and have used this capability to generate a 3-D stereoscopic image. Figuring out how to include two types of information in the same area was an enticing challenge for the A*STAR Institute of Materials Research and Engineering team.
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