• General Atomic says its Blitzer rail gun already "tactically relevant"

    Last Friday the U.S. Navy tested a rail gun with muzzle energies of 64 megajoules; the gun aims to deliver a projectile to a target 200 miles away at speeds of up to Mach 7+; not to be outdone, General Atomics has just released information about how, back in September, it tested its own rail gun — dubbed the Blitzer; while the Navy researchers are still preoccupied with the velocity of the projectile and muzzle energy, GA says it is farther along in weaponizing its system, which it describes as already “tactically relevant”

  • Underground security tech to revolutionize border security

    The University of Arizona College of Engineering is testing an invisible border monitoring system that could revolutionize the way the U.S. conducts homeland security; the border-monitoring system, known as Helios, consists of laser pulses transmitted through fiber-optic cables buried in the ground that respond to movements on the surface above; a detector at one or both ends of the cable analyzes these responses; Helios is sensitive enough to detect a dog and can discriminate between people, horses, and trucks

  • U.S. Navy demonstrates 100-mile hypersonic rail gun test shot

    The latest test by the U.S. Navy of a rail gun saw a trial firing which pushed muzzle energy to a blistering 33 megajoules (MJ); the Navy wants to achieve lab trials at 64 MJ, potentially offering 200 mile range with projectiles striking at Mach 5, before trying to build an actual weapon

  • Fully robotic, remotely controlled bomb-disposal hand nears

    Engineers have developed a robotic hand that offers remotely controlled, highly dexterous movements that could lead to a breakthrough in areas such as bomb disposal; the robotic hand can be remotely controlled by a glove worn by an operator connected to a computer; this can then communicate via a wireless connection with the hand offering real time comparable movements

  • New kind of blast-resistant glass -- thinner and tougher -- developed

    Current blast-resistant glass technology — the kind that protects the windows of key federal buildings, the president’s limo, and the Pope-mobile — is thicker than a 300 page novel — so thick it cannot be placed in a regular window frame; DHS-funded research develops thinner, yet tougher, glass; the secret to the design’s success is long glass fibers in the form of a woven cloth soaked with liquid plastic and bonded with adhesive

  • Ray gun runs at full power for six hours

    Laser weapons are potentially very powerful, but until now they had one major drawback: All the earlier versions of the weapon were essentially giant rocket engines that burned chemical fuels and reached impressive powers; some even shot down test missiles; all of them, however, only ran for seconds at a time, and needed special fuels that would have created nightmares for battlefield logistics; a new Northrop Grumman ray gun has now run at full power for more than six hours

  • USAF looking to emulate fruit-flies for killer insect swarm drones

    The U.S. Air Force is studying how fruit flies maneuver within a heavily instrumented “simulation tunnel” in order to develop tiny, potentially lethal insect-sized flying robots; tiny military swarm droids could scatter across towns or cities to locate or spy on persons of interest to the U.S. military; they might even be able to land on the back of someone’s neck and blow his head off using some kind of tiny warhead

  • WikiLeaks reveals relentless Chinese drive for scientific hegemony

    Among the documents released by WikiLeaks are cables from the science office in the U.S. embassy in Beijing; the cables — some based on Chinese informers — reveal an aggressive, government-funded R&D effort by the Chinese government; among the items of interest: gait biometric device which will be placed under floors and sidewalk to identify people, covertly, by the way they walk; efforts to hack quantum cryptography; and a plan to build 70 nuclear-fusion reactors in 10 years

  • New strategy for UAVs: emulate the soaring approach of peregrine falcons

    UAVs could fly for longer using less power if they copied the counter-intuitive flying patterns of peregrine falcons, say researchers; falcons, instead of spiraling in one direction to stay with a single thermal, constantly change the direction of their spirals

  • Color-changing "blast badge" detects exposure to explosive shock waves

    Researchers develop a color-changing patch that could be worn on soldiers’ helmets and uniforms to indicate the strength of exposure to blasts from explosives in the field; blast-induced traumatic brain injury is the “signature wound” of the current wars in Iraq and Afghanistan; with no objective information of relative blast exposure, soldiers with brain injury may not receive appropriate medical care and are at risk of being returned to the battlefield too soon

  • 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

  • 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

  • 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

  • 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

  • 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