Researchers working at SLAC National Accelerator Laboratory have used powerful X-rays to help decipher how certain natural antibiotics defy a longstanding set of chemical rules—a mechanism that has baffled organic chemists for decades.
It's one thing to design and build a brand-new piece of technology, to test it and tune it until it works just right. It's an entirely different matter to take that one-of-a-kind instrument and mass produce it. But that's essentially what the fabrication team for the Cryogenic Dark Matter Search did.
For 50 years, scientists searched for the secret to making tiny implantable devices that could travel through the bloodstream. Engineers at Stanford University have demonstrated such a device. Powered without wires or batteries, it can propel itself through the bloodstream and is small enough to fit through blood vessels.
The United States Air Force Office of Scientific Research has awarded $8.5 million to a consortium of seven U.S. universities that will work together to determine the best approach for generating quantum memories based on interaction between light and matter. The team will consider three different approaches for creating entangled quantum memories that could facilitate the long-distance transmission of secure information.
Obama's new rule is only one step toward ensuring the safety of hydraulic fracturing, the booming technology that offers economic and environmental benefits, according to Stanford University geophysicist and DOE adviser Mark Zoback.
At the nano level, researchers at Stanford University have discovered a new way to weld together meshes of tiny wires. The technique harness plasmonics to fuse wires with a simple blast of light. Their work could lead to innovative electronics and solar applications.
A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal of the research is to develop an all-electric highway that wirelessly charges cars and trucks as they cruise down the road.
Every year, students studying aeronautical and astronautical design brace themselves for the time-consuming process of writing their own code to optimize aerospace designs. In search of a better way, a team of engineers at the Aerospace Design Lab at Stanford University has released SU2, an open-source application that models the effects of fluids moving over aerodynamic surfaces.
A big reason for publishing scientific results is to inform others who can then use your data and conclusions to make additional discoveries, technologies or products. But what good are findings if they are, well, hard to find? Scientists from the SLAC National Accelerator Laboratory and Stanford University have a solution for those who design new chemical catalysts: They made an app.
Organic semiconductors could usher in a new era of electronics. But there is one serious drawback: Organic semiconductors do not conduct electricity very well. However, researchers at Stanford University have changed that equation by improving the ability of the electrons to move through organic semiconductors.
While it is possible to chemically scrub carbon dioxide from Earth's atmosphere in order to lessen the severity of global warming, the process is prohibitively expensive for now. Best to focus on controls for coal-burning power plants, say researchers from Stanford University and the Massachusetts Institute of Technology.
Since most of the world's governments have not yet enacted regulations to curb emissions of greenhouse gases, some experts have advocated the development of technologies to remove carbon dioxide directly from the air. But a new Massachusetts Institute of Technology study shows that, at least for the foreseeable future, such proposals are not realistic because their costs would vastly exceed those of blocking emissions right at the source, such as at the powerplants that burn fossil fuels.
Stanford University researchers are proposing to use opal to sequester uranium at contaminated sites. The idea springs from natural deposits of opal, containing uranium, that have been stable for hundreds of thousands or even millions of years.
Carbon nanotubes could make many electronic devices cheaper and more efficient. But when nanotubes are manufactured, tubes that work for solar cells are mixed with tubes that work for batteries. The final product is a nanotube powder that is not ideal for any single commercial application. However, Stanford University researchers have discovered a technique to selectively sort semiconducting single-walled carbon nanotubes from the mixture.
John McCarthy, a pioneer in artificial intelligence technology and creator of the computer programming language often used in that field, died this week at age 84. He was a leader in the field, coining the term in a 1955 research proposal and going on to create influential laboratories at both Stanford University and Massachusetts Institute of Technology.
Using carbon nanotubes bent to act as springs, Stanford University researchers have developed a stretchable, transparent skin-like sensor. The sensor can be stretched to more than twice its original length and bounce back perfectly to its original shape. It can sense pressure from a firm pinch to thousands of pounds.
Cities release more heat to the atmosphere than the rural vegetated areas around them, but how much influence these urban "heat islands" have on global warming has been a matter of debate. Now a study by Stanford University researchers has quantified the contribution of the heat islands for the first time, showing that it is modest compared with what greenhouse gases contribute to global warming.
A new form of carbon that rivals diamonds in its hardness, but has an amorphous structure similar to glass, has been produced under ultrahigh pressure in laboratory experiments. The research team was led by Stanford University mineral physicist Wendy Mao and graduate student Yu Lin.
Carbon is the fourth-most-abundant element in the universe and takes on a wide variety of forms, called allotropes, including diamond and graphite. Scientists at Carnegie's Geophysical Laboratory are part of a team that has discovered a new form of carbon, which is capable of withstanding extreme pressure stresses that were previously observed only in diamond.
Stanford researchers have used nanotechnology to invent a better lithium ion battery cathode. The researchers have used sulfur-coated hollow carbon nanofibers and an electrolyte additive to fabricate a superior rechargeable lithium battery cathode. Putting silicon nanowire anodes and sulfur-coated carbon cathodes into one battery could be the next generation in battery design.
By harnessing plasmonics to intensify light, engineers at Stanford University have created an ultra-compact nonlinear light source that shrinks a large-scale, high-energy device to the nanoscale.
Stanford University Earth scientists lend geophysical support to a theory of life's origins—but show that, if it's accurate, the first organisms could only have arisen during one brief stretch of geological time, long ago.
A readily portable miniature microscope weighing less than 2 g and tiny enough to balance on your fingertip has been developed by Stanford University researchers. The scope is designed to see fluorescent markers, such as dyes, commonly used by medical and biological researchers studying the brains of mice.
The strength of a chemical bond between atoms is the fundamental basis for a molecule's stability and reactivity. Tuning the strength and accessibility of the bond can dramatically change a molecule's properties. New research by a team from two European universities and SLAC National Accelerator Laboratory shows that attractive forces between other parts of a molecule can make a stretched bond joining two carbon atoms much more stable than expected.
Flies like watching computer screens as much as the next animal. Set them on a trackball in front of a monitor, and they'll follow the action—if the images in front of them move in one direction, the flies will try to move the same way. That's because flies—like humans—can perceive what researchers call "phi motion."