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Battling against biological threats with ultrasonics
A tweezers-like device uses ultrasonics to detect bioterror agents; when a small sample such as a powdery anthrax mix is placed inside the device, an array of piezoelectric transducers would generate an ultrasonic force field onto the sample; security officials would be able to detect anthrax from innocuous powders in the mix through differences in compressibility and density
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Quake-proofing U.S. buildings
An Indian civil engineer has invented a sleeved column braces which help buildings withstand earthquakes; the sturdy brace apparatus surrounds a core of high-performance steel, but is spaced from the sides of the core; the sleeve thus absorbs and dissipates energy, but does not buckle under pressure; several large buildings in California, built in the last few years, have adopted the technology
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Shooting payloads into space with a cannon
Using rockets to loft payloads into orbit costs $5,000 per pound; a proposed ling-barrel cannon can deliver cargo into orbit around $250 per pound; what is more, unlike a rocket, the cannon is re-usable; it will take seven years and about $500 million to build the cannon
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Robot chooses from a menu of walking styles to escape trouble
When a newly developed robot finds it cannot move freely, it scans through the many walking gaits it has taught itself and selects the best for the terrain; this means it can free itself should it get stuck; the robot has six triple-jointed legs each with several sensors; the sensors feed information to the neural network, which then determines the most appropriate gait for the terrain, and adjusts the robot’s eighteen motors accordingly
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Robots climb up the wall
Robots which mimic wall-climbing animals can be used for gathering information; they can climb up walls and peek into windows – or clamber around the submerged hulls of cargo ships to check for contraband and bombs
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Russia to build nuclear spaceships
The key technical problem in sending manned missions to the Moon and Mars is the development of new propulsion systems and energy supplies with a high degree of energy-mass efficiency; the chemical rockets used in spacecraft today expel their reaction mass with relatively low energy, making them inefficient; in the case of round-trip journeys without refueling at the other end, chemical rocket craft will need to carry so much fuel that they will struggle to deliver any useful payload
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Computer spots behavior patterns
New cognitive computational system recognizes and predicts human behavior; applications for the system could include intelligent surveillance and accident prevention
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Fire-fighting robots developed
Sheffield-Hallam University develop fire-fighting robots; these robots carry individualized laser-range, radio-signal and ultrasound sensors that are designed for specific tasks such as warning of toxic materials, providing and maintaining mobile communication links, or inferring localization information
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Hidden sensor network detects explosives
German researchers develop a covert sensor system that track people carrying explosive in busy transportation hubs; the system works using two separate sensory networks that gather chemical and kinetic information — the first is made up of a series of four to six rotating laser scanners that send pulses through corridors, walkways, or escalators at airports or railway stations; the second network consists of electronic sensors hidden in air vents and wall fixtures that provide chemical data on explosive materials
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U.K. firm says its scanning technology meets security, privacy concerns
Cambridge, U.K.-based TeraView says it is developing terahertz body scanners which use light from upper end of the infra-red spectrum, with a wavelength between 0.1 and 1mm; the scanners do not produce an image but a “fingerprint” — rather than blurry pictures of naked tourists, a TeraView scanner would return absorbance data that could be automatically analyzed to approve travelers or alert airport staff to investigate further
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U..S faces critical shortage of computer scientists
DARPA says the United States is facing a critical shortage of computer scientists; “While computers and internet connectivity become daily fixtures in the lives of Americans, we are steadily losing the engineering talent to [develop and maintain] these systems”
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Israeli ducted-fan sky-jeep in flight trials
Fancraft technology is different from hovercraft technology, because hovercrafts cannot actually fly; fancraft technology involves the use of a basic idea: ducted fans, which are essentially enclosed helicopter rotor discs; until now, the technology faced two problems: small thrust discs mean very low efficiency, leading to aircraft with unacceptably poor fuel endurance and payload even in the context of helicopters; secondly, in the past, the ducted-fan machines were almost impossible to control; an Israeli company says it has solved at least the second problem
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Keyboard strokes reveal who you are – and whether your are stressed
The rhythms of a person’s typing style are stable over time, allowing computers and ATMs to identify you; researchers suggest key strokes could be used not only to verify identity but also to detect stress or even spot early signs of Alzheimer’s disease
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Debate intensifies over full-body scanners
The Christmas Day near-bombing invigorated an already-keen interest in whole-body scanners; there is debate going on over the effectiveness – and health risks – of the two main technologies available: millimeter-wave radiation and backscatter radiation; some suggest soft chemical ionization as an alternative
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New airport security drive spurs scanner patent surge
The averted Christmas bombing was only the latest evidence that there is a need for better, and more sophisticated, airport security technologies; a look at the dossiers of the U.S. Patent Office shows that many companies and individuals have applied for patents for a variety of security technologies
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More headlines
The long view
Are We Ready for a ‘DeepSeek for Bioweapons’?
Anthropic’s Claude 4 is a warning sign: AI that can help build bioweapons is coming, and could be widely available soon. Steven Adler writes that we need to be prepared for the consequences: “like a freely downloadable ‘DeepSeek for bioweapons,’ available across the internet, loadable to the computer of any amateur scientist who wishes to cause mass harm. With Anthropic’s Claude Opus 4 having finally triggered this level of safety risk, the clock is now ticking.”
Bookshelf: Preserving the U.S. Technological Republic
The United States since its founding has always been a technological republic, one whose place in the world has been made possible and advanced by its capacity for innovation. But our present advantage cannot be taken for granted.
Autonomous Weapon Systems: No Human-in-the-Loop Required, and Other Myths Dispelled
“The United States has a strong policy on autonomy in weapon systems that simultaneously enables their development and deployment and ensures they could be used in an effective manner, meaning the systems work as intended, with the same minimal risk of accidents or errors that all weapon systems have,” Michael Horowitz writes.
Ukraine Drone Strikes on Russian Airbase Reveal Any Country Is Vulnerable to the Same Kind of Attack
Air defense systems are built on the assumption that threats come from above and from beyond national borders. But Ukraine’s coordinated drone strike on 1 June on five airbases deep inside Russian territory exposed what happens when states are attacked from below and from within. In low-level airspace, visibility drops, responsibility fragments, and detection tools lose their edge. Drones arrive unannounced, response times lag, coordination breaks.
Shots to the Dome—Why We Can’t Model US Missile Defense on Israel’s “Iron Dome”
Starting an arms race where the costs are stacked against you at a time when debt-to-GDP is approaching an all-time high seems reckless. All in all, the idea behind Golden Dome is still quite undercooked.
Our Online World Relies on Encryption. What Happens If It Fails?
Quantum computers will make traditional data encryption techniques obsolete; BU researchers have turned to physics to come up with better defenses.
Virtual Models Paving the Way for Advanced Nuclear Reactors
Computer models predict how reactors will behave, helping operators make decisions in real time. The digital twin technology using graph-neural networks may boost nuclear reactor efficiency and reliability.
Critical Minerals Don’t Belong in Landfills – Microwave Tech Offers a Cleaner Way to Reclaim Them from E-waste
E-waste recycling focuses on retrieving steel, copper, aluminum, but ignores tiny specks of critical materials. Once technology becomes available to recover these tiny but valuable specks of critical materials quickly and affordably, the U.S. can transform domestic recycling and take a big step toward solving its shortage of critical materials.
Microbes That Extract Rare Earth Elements Also Can Capture Carbon
A small but mighty microbe can safely extract the rare earth and other critical elements for building everything from satellites to solar panels – and it has another superpower: capturing carbon dioxide.
Virtual Models Paving the Way for Advanced Nuclear Reactors
Computer models predict how reactors will behave, helping operators make decisions in real time. The digital twin technology using graph-neural networks may boost nuclear reactor efficiency and reliability.
Critical Minerals Don’t Belong in Landfills – Microwave Tech Offers a Cleaner Way to Reclaim Them from E-waste
E-waste recycling focuses on retrieving steel, copper, aluminum, but ignores tiny specks of critical materials. Once technology becomes available to recover these tiny but valuable specks of critical materials quickly and affordably, the U.S. can transform domestic recycling and take a big step toward solving its shortage of critical materials.
Microbes That Extract Rare Earth Elements Also Can Capture Carbon
A small but mighty microbe can safely extract the rare earth and other critical elements for building everything from satellites to solar panels – and it has another superpower: capturing carbon dioxide.