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Electron beam reduces virus-related health risk in lettuce, spinach
Current health-care costs in the United States associated with foodborne viruses are estimated at about $6 billion; scientists show that electron-beam irradiation can reduce the health risks in iceberg lettuce and spinach, but note that electron-beams are not meant to be used as a “stand-alone” or “clean-up” technology
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Running robots for hard-to-reach places
A large fraction of the Earth’s surface remains inaccessible to conventional wheeled or tracked vehicles, while animals and humans traverse such terrain with ease and elegance; scientists are working to develop search-and-rescue robots which emulate animal or human walking, thus making them more capable of saving people in hard-to-reach places
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Helicopters emulate humpback whales to become more maneuverable
Humpback whales are renowned for their great speed and acrobatic skills; they achieve both because of their unusually large pectoral fins, which have characteristic bumps along the front edge; researcher say that placing similar bumps on helicopter rotor blades (the technical term is “leading-edge vortex generators”) will increase the speed and maneuverability of helicopters
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Portable device quickly detects pathogens in developing countries
Two Cornell University researchers will combine their inventions to develop a handheld pathogen detector that will give health care workers in the developing world speedy results to identify in the field such pathogens as tuberculosis, chlamydia, gonorrhea, and HIV
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Self-guided bullet can hit target a mile away
Researchers have designed a self-guided bullet; the dart-like, self-guided bullet for small-caliber, smooth-bore firearms that hit laser-designated targets at distances of more than a mile
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First responders could be zipping through skies within two years
Glenn Martin, the inventor of the Martin Jetpack, the world’s first commercially available jetpack, recently spoke with Homeland Security NewsWire’s executive editor Eugene K. Chow; in their interview Martin discusses the technical challenges of developing a viable jetpack, its uses in emergency response, and when we can expect to see civilians zipping through the skies
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World’s first magnetic soap can clean oil spills
A University of Bristol team has dissolved iron in liquid surfactant to create a soap that can be controlled by magnets; the discovery could be used to create cleaning products that can be removed after application and used in the recovery of oil spills at sea
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Helping UAVs to land safely in an emergency
One obstacle to the wider use of UAVs in domestic missions such as law enforcement is the fact that UAV flight plans are set pre-flight, and if something goes wrong and they need to land they have no way to determining where the safest landing spot is; in most cases they just drop; engineers are developing a system which will allow UAVs sense and avoid other traffic and determine appropriate landing spots should the need arise
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New material for building thermonuclear fusion reactors
Two European projects – ITER and DEMO — propose development of fusion reactors that are economically viable; this work depends on the development of new structural materials capable of withstanding damage by irradiation and elevated temperatures resulting from the fusion reaction
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Tails help leaping lizards – and robots – stay in control
A new study examined how lizards manage to leap successfully even when they slip and stumble; the researchers found that lizards swing their tails upward to prevent them from pitching head-over-heels into a rock; the research pushed the boundaries of control in robotics in an area researchers call inertial assisted robotics
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Using bacteria to detect toxins in water
Biologists and bioengineers at UC San Diego have created a living neon sign composed of millions of bacterial cells that periodically fluoresce in unison like blinking light bulbs; because bacteria are sensitive to many kinds of environmental pollutants and organisms, the scientists believe this approach could be used to design low cost bacterial biosensors capable of detecting an array of heavy metal pollutants and disease-causing organisms
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“Smart Connector” to detect, pinpoint damage to cellular cables
Researchers have developed the Smart Connector, a new sensor that once installed in the connecting units of coaxial cables can provide information about equipment damage and pinpoint the exact location through self-diagnosing technologies — some of the most advanced in the field today
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A UAV that uses wind power as a bird does
An engineering Ph.D. students wins prizes for the design of an unmanned aerial vehicle (UAV) — dubbed Green Falcon II — which would be powered by the sun and wind; “While all airplanes mimic the shape of birds, the Green Falcon II will literally use the wind to power its movement, just as a bird would,” the young inventor says
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Research may yield more compact antennas for military use
Researchers say that the tall, bulky antennas the U.S. military uses could be scrapped for low-profile, broadband antennas — thanks to a different approach to antenna design that replaces large dipole antennas with a more compact and conformal multi-mode radiator
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Portable wastewater system generates energy, produces drinking water
Researchers are working to develop a portable wastewater treatment system that could improve the military’s efficiency; the solar-bio-nano project also will generate energy and produce drinking water, thus providing a potential blueprint for the future of municipal/agricultural wastewater treatment systems
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More headlines
The long view
Autonomous Vehicle Technology Vulnerable to Road Object Spoofing and Vanishing Attacks
Researchers have demonstrated the potentially hazardous vulnerabilities associated with the technology called LiDAR, or Light Detection and Ranging, many autonomous vehicles use to navigate streets, roads and highways. The researchers have shown how to use lasers to fool LiDAR into “seeing” objects that are not present and missing those that are – deficiencies that can cause unwarranted and unsafe braking or collisions.
Tantalizing Method to Study Cyberdeterrence
Tantalus is unlike most war games because it is experimental instead of experiential — the immersive game differs by overlapping scientific rigor and quantitative assessment methods with the experimental sciences, and experimental war gaming provides insightful data for real-world cyberattacks.
Prototype Self-Service Screening System Unveiled
TSA and DHS S&T unveiled a prototype checkpoint technology, the self-service screening system, at Harry Reid International Airport (LAS) in Las Vegas, NV. The aim is to provide a near self-sufficient passenger screening process while enabling passengers to directly receive on-person alarm information and allow for the passenger self-resolution of those alarms.
Falling Space Debris: How High Is the Risk I'll Get Hit?
An International Space Station battery fell back to Earth and, luckily, splashed down harmlessly in the Atlantic. Should we have worried? Space debris reenters our atmosphere every week.
Testing Cutting-Edge Counter-Drone Technology
Drones have many positive applications, bad actors can use them for nefarious purposes. Two recent field demonstrations brought government, academia, and industry together to evaluate innovative counter-unmanned aircraft systems.
Strengthening the Grid’s ‘Backbone’ with Hydropower
Argonne-led studies investigate how hydropower could help add more clean energy to the grid, how it generates value as grids add more renewable energy, and how liner technology can improve hydropower efficiency.
The Tech Apocalypse Panic is Driven by AI Boosters, Military Tacticians, and Movies
From popular films like a War Games or The Terminator to a U.S. State Department-commissioned report on the security risk of weaponized AI, there has been a tremendous amount of hand wringing and nervousness about how so-called artificial intelligence might end up destroying the world. There is one easy way to avoid a lot of this and prevent a self-inflicted doomsday: don’t give computers the capability to launch devastating weapons.
The Tech Apocalypse Panic is Driven by AI Boosters, Military Tacticians, and Movies
From popular films like a War Games or The Terminator to a U.S. State Department-commissioned report on the security risk of weaponized AI, there has been a tremendous amount of hand wringing and nervousness about how so-called artificial intelligence might end up destroying the world. There is one easy way to avoid a lot of this and prevent a self-inflicted doomsday: don’t give computers the capability to launch devastating weapons.