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Nature's desalination: bacteria turn salty water fresh
The growing global shortage of water has led to a growing interest in desalination to produce fresh water from seas and estuaries; conventional desalination plants, however, consume large amounts of energy; the solution: a bug-powered desalination cell that takes salt out of seawater
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Police radar can identify suicide bombers
The radar guns police use to spot speeding motorists fire microwave pulses at a car and measures the Doppler shift of the reflected signal to calculate its velocity; researchers found that the strength and polarization of the reflected signal — the “radar cross section” — can also measure the reflected signal created by the most common arrangements of looped wiring typically used by suicide bombers
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Game-changing rifle arrives in Afghanistan
A new smart rifle can be programmed so that its 25-mm. ammunition does not explode on impact; instead, it can be set to detonate either in front of or behind a target, meaning it literally will go through a wall before it explodes and kills the enemy; the Army says that enemy soldier can run, but they can no longer hide
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DARPA looking for a game interface to end all interfaces
A soldier in the field has his or her hands and voice fully taken up managing their weapons, sensors, and communications; DARPA wants to help: the Pentagon’s push-the-envelope research unit asks for idea on how to develop an interface which would allow soldiers to run, leap, or otherwise navigate about virtually without needing to do so physically
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DARPA: Break-up of hypersonic airplane/missile no big deal
DARPA first test of its hypersonic airplane/missile — Falcon HTV-2 — failed after the prototype broke up on re-entering the atmosphere; after investigating the causes of the accident, the agency said it is ready for another test; the HTV-2 unmanned test vehicle had no propulsion of its own, being intended rather to try out new airframe and control technologies for use in hypersonic weapons or aircraft of the future
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Blood camera detects invisible stains at crime scenes
At present, blood stains in a crime scene are detected using the chemical luminol; luminol is toxic, however, and can dilute blood samples to a level at which DNA is difficult to recover; it can also smear blood spatter patterns that forensic experts use to help determine how the victim died; luminol can also react with substances like bleach, rust, fizzy drink, and coffee, causing it to produce false positives; University of South Carolina rese3archers offer a better solution
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Stealthy robo-snake to gather info in inaccessible areas
Israeli researchers develop a robotic snake that could be useful in urban and subterranean warfare, enabling the inspection and surveillance of sewage systems, narrow tunnels, or culverts, inaccessible by other systems; the robo-snake can maneuver through difficult terrain, “sneak” stealthily inside buildings, use its sensors to scan their interiors; the robot will be able to carry disposable sensors that could be separated and left behind to monitor activity inside buildings
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Carnegie Mellon to develop flying car for DARPA
DARPA chooses Carnegie Mellon to develop autonomous capability for flying car; the military ground vehicle would transform into flyer for scouting, resupply, and medical evacuation; the flying car would be capable of transporting four people and 1,000 pounds of payload up to 250 nautical miles, either by land or by air
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Breakthrough: Flapless UAV gets airborne
The conventional control surfaces of a UAV include many moving parts, require frequent, costly repairs, and account for a significant percentage of an aircraft’s noise output; British researchers developed a UAV with no moveable control surfaces — no flaps, ailerons, elevators, or spoilers; just a wing, an engine, and some holes
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Securing the nation with fingerprinting materials
Lawrence Livermore National Laboratory (LLNL) researchers may have found a way to improve Raman spectroscopy as a tool for identifying substances in extremely low concentrations; potential applications for Raman spectroscopy include medical diagnosis, drug/chemical development, forensics and highly portable detection systems for national security.
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9 million Euro project aims to develop stretchable electronic fabrics
Belgian researchers are working on developing smart electronic fabrics; the project will focus on making electronic packages conformable to the properties of textiles instead of just weaving rigid electrical components into fabrics; the fabric will also feature stretchable electrical interconnections
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Laser has clinical, security applications
A novel laser system that could help detect bone diseases — and airport security; the spatially offset Raman spectroscopy (SORS) instrument uses a technique that allows it to scan deep into human tissue; the instrument is also being studied as a bottle and packaging scanner for airport security and is already used to assess the content of drugs
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DARPA, NASA collaborate on "100-Year Starship" project
DARPA, NASA collaborate on a study to examine the business model needed to develop and mature a technology portfolio enabling long-distance manned space flight a century from now; “The 100-Year Starship study looks to develop the business case for an enduring organization designed to incentivize breakthrough technologies enabling future spaceflight,” the mission statement says
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Strongest-ever nano-material developed
Israeli scientists develop a revolutionary new ball-shaped nanostructure — fully derived from very simple organic elements yet strong as steel; potential uses of the nanotechnology include bullet-proof vests, medical implants, space, and aviation applications
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New cotton fabric stays waterproof through 250 washes
Most waterproofed fabrics lose their super-hydrophobic properties after only one or two washes, and they become uncomfortable to wear because they do not allow air flow through the material. In contrast, the new fabric, which according to the researchers looks almost identical to ordinary cotton fabric, is completely impermeable and breathable, and retains its properties even after being laundered many times
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More headlines
The long view
Encryption Breakthrough Lays Groundwork for Privacy-Preserving AI Models
In an era where data privacy concerns loom large, a new approach in artificial intelligence (AI) could reshape how sensitive information is processed. New AI framework enables secure neural network computation without sacrificing accuracy.
AI-Controlled Fighter Jets May Be Closer Than We Think — and Would Change the Face of Warfare
Could we be on the verge of an era where fighter jets take flight without pilots – and are controlled by artificial intelligence (AI)? US R Adm Michael Donnelly recently said that an upcoming combat jet could be the navy’s last one with a pilot in the cockpit.
AI and the Future of the U.S. Electric Grid
Despite its age, the U.S. electric grid remains one of the great workhorses of modern life. Whether it can maintain that performance over the next few years may determine how well the U.S. competes in an AI-driven world.
Using Liquid Air for Grid-Scale Energy Storage
New research finds liquid air energy storage could be the lowest-cost option for ensuring a continuous power supply on a future grid dominated by carbon-free but intermittent sources of electricity.
Enhanced Geothermal Systems: A Promising Source of Round-the-Clock Energy
With its capacity to provide 24/7 power, many are warming up to the prospect of geothermal energy. Scientists are currently working to advance human-made reservoirs in Earth’s deep subsurface to stimulate the activity that exists within natural geothermal systems.
Experts Discuss Geothermal Potential
Geothermal energy harnesses the heat from within Earth—the term comes from the Greek words geo (earth) and therme (heat). It is an energy source that has the potential to power all our energy needs for billions of years.
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.
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.”
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.
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.”