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Composite materials extend life of existing bridges
The Obama administration’s stimulus package directs large amounts of money toward rehabilitating the aging U.S. infrastructure; Jayhawks researchers are testing a new class of devices that could double the life of America’s existing bridges using composite materials
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Better bullet-proof vests with advanced fiber weaves
Manchester University researchers say that bullet-proof vests used to protect the lives of police officers could be further improved with advanced fiber weaves
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South Korea develops homemade stealth technology
While the United States keeps a close eye on work by Shina, Russia, and India on stealth technology, South Korea announces it has mastered the technology
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New anti-crime approach: vigilant windows
Windows are coated with special polymer which contains nanoparticles that convert light into fluorescent radiation; this radiation is channeled to the edges of the window where it is detected by sensors; when a person approaches the window, the sensors wirelessly relay this currency information to a computer program, which alerts security officials of the potential intruder
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A simpler route to invisibility
Two years ago Duke University researchers built an invisibility cloak — a device that can make objects vanish from sight, at least when viewed using a narrow band of microwave frequencies; researchers now show how to create cloaks that work across a wider range of frequencies
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Acoustic cloak silences nuisance noise
Spanish researchers prove metamaterials can be designed to produce an acoustic cloak — a cloak that can make objects impervious to sound waves
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New class of meterials offers many benefits
Microspheres to carry hydrogen, deliver drugs, filter gases, and detect nuclear weapons development
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"Fibrous" steel withstands extremely cold temperatures
Steel is very strong, except that in cold temperatures it becomes brittle; new method of making steel withstand cold temperatures could make steel structures in Arctic areas, like ships or oil rigs, cheaper to construct
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Breakthrough: Dramatic increase in thermoelectric efficiency achieved
Two hundred years ago scientists discovered the thermoelectric effect: Certain materials can convert heat into electricity and vice versa; trouble is, most materials which conduct electricity also conduct heat, so their temperature equalizes quickly; until now: Boston College, MIT researchers solve this vexing problem
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New material captures carbon dioxide
Georgie Tech researchers developed material which captures CO2 from the chimneys of coal-fired power plants and other generators of the greenhouse gases
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European consortium to make RFID tags more affordable
To make RFID more popular, there is a need to make them cheaper; a team of major technology companies is confident that the cost will be reduced once the tags can be printed because electrically conductive and semiconducting plastics can be used in high-volume printing processes
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Invisibility cloak for nanoparticles designed
Researchers design invisibility cloak for nanoparticles; the new particle invisibility cloak will help create a vast array of new material technologies that combine unknown property combinations such as strength and durability with optical transparency
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Sea cucumber inspires new plastic for body armor, brain implants
Sea cucumbers’ skin is usually supple, allowing them to slide through narrow spaces between rocks and corals; when touched, however, a defensive reaction makes their skin go rigid in seconds, thanks to enzymes that bind protein fibers together; researchers apply this process to clothing, creating garments which switch stiffness in response to a pulse of electricity
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Nano-bristle clothes to generate power from body motions
Yellow Jackets researcher develops energy-generating fiber: If clothes are made from this piezoelectric fabric, the wearer’s body motions would produce useful amounts of power
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Day of ultra-clean engine nears
One of the major obstacles facing the development of ultra-clean car engines is the need for permanent-magnet electric motors to operate well at temperatures up to 200 degrees Celsius; Iowa researchers offer a way to create such magnets
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More headlines
The long view
China’s Critical Mineral Strategy Goes Beyond Geopolitics
China dominates critical mineral refining but faces its own supply vulnerabilities, highlighting the complexity of global dependencies. A national strategy seeks to balance a focus of robust industrial policy on critical minerals while fostering international cooperation. A balanced approach involving China in global frameworks can reduce geopolitical tensions and foster sustainable supply chain solutions.
Model Reveals Supply Chain Risks Pose Major Threat to Financial Stability
Supply chain disruptions can magnify financial risks. A new model shows how risks spread from the real economy to the financial sector.
Recovering Rare Earth Metals from Waste Permanent Magnets
Rare earths, in particular, are characterized by chemical, electrical, magnetic, and luminescent properties that can be achieved by adding only a small amount, and their use has recently increased significantly as core materials in the eco-friendly automobile and renewable energy industries.