• Engineering competition features Blue Tooth-capable trebuchet

    During the first Storm the Citadel Trebuchet Competition in Charleston over the weekend, Google employees combined Android cell phones, a computer the size of a credit card, and a Blue Tooth receiver to trigger a medieval weapon used in the twelfth century to destroy enemy fortifications

  • Wine testing technology to scan for liquids at airports

    Scanner technology originally developed at the University of California, Davis, to test wine in the bottle is being re-engineered to tell shampoo from explosives at airports; this means travelers could be able to carry soda cans or full-size tubes of toothpaste through security and onto jetliners in the not-too-distant future

  • Acoustic gunfire detection devices heading to the field

    Technological developments may one day create artificial soldiers, but until they come along, the United States and other countries will continue to rely on human soldiers; the militaries thus want to preserve as many of their soldier’s lives as possible; to that end, Shoulder-Worn Acoustic Targeting System (SWATS), which helps Marines zero in on enemy sniper fire, is a godsend to the United States; asymmetric warfare favors the forces that can strike and runaway unharmed, but with plentiful acoustic sensors in the field it will be that much harder for snipers to ambush U.S. soldiers and live to escape

  • To boldly go -- but at a leisurely pace

    In 1961 President John Kennedy committed the United States to land a man on the moon “before this decade is out”; DARPA new space project has a more lackadaisical time table: building an interstellar starship capable of carrying people to other star systems than our own by the year 2100AD

  • Aussie "thinking cap" makes brain waves

    Scientists in Australia say they are encouraged by initial results of a revolutionary “thinking cap” that aims to promote creativity by passing low levels of electricity through the brain; the device works by suppressing the left side of the brain, associated with knowledge, and stimulating the right side, linked to creativity.

  • A fast, simple test for detecting cholera

    The new detection method uses specially prepared nanoparticles of iron oxide, each barely 1/50,000th the width of a single human hair, coated with a type of sugar called dextran; to achieve this, the scientists looked for specific characteristics of the cholera toxin receptor (GM1) found on cells’ surface in the victim’s gut, and then they introduced these features to their nanoparticles; when the magnetic nanoparticles are added to water, blood, or other fluids to be tested, the cholera toxin binds to the nanoparticles in a way that can be easily detected by instruments

  • Smart fence distinguishes real from imagined threats

    A new sensor system can tell between someone simply leaning against a fence and a ne’er-do-well sneaking around; the device, developed by researchers at the University of Southern California, contains signal processing based on the way the brain works

  • Breakthrough in free-electron laser development

    Breakthroughs in Free-Electron Laser (FEL) technology could mean a virtually impenetrable defense system for Navy ships; the laser weapon has the capability to detect and engage incoming cruise missiles at the speed of light without running out of ammunition

  • iPhone app helps police "see" through walls

    Law enforcement officials are using SafetyNet Mobile, a powerful new iPhone app, to fight crime; the app allows police officers to quickly access all emergency dispatch information including maps, warnings, hazard information, and other critical data; to access the emergency dispatch database, the officer simply points the iPhone or iPad’s camera at a location; this technology allows police to “see” behind doors or walls by alerting them to any potential dangers inside; the app installs on any iPhone or iPad; SafetyNet Mobile has been successfully tested by three police departments in California and is currently being rolled out

  • Beaming rockets into space

    Space launches have evoked the same image for decades: bright orange flames exploding beneath a rocket as it lifts, hovers, and takes off into the sky; an alternative propulsion system proposed by some researchers could change that vision; instead of explosive chemical reactions on-board a rocket, the new concept, called beamed thermal propulsion, involves propelling a rocket by shining laser light or microwaves at it from the ground; with the beam shining on the vehicle continually, it would take eight to ten minutes for a laser to put a craft into orbit, while microwaves would do the trick in three to four minutes

  • New bomb detection tool: Ferns

    Researchers engineered fern proteins to turn airport plants into bomb detectors; the researchers rewrite the fern’s natural signaling process so the plant turns from green to white when chemicals are detected in air or soil

  • "Sniffer technology" may replace detection dogs

    Humans have approximately 5,000,000 sensory “smelling” cells, while certain breeds of dogs, such as the Alsation, can have up to 220,000,000; dogs trained for detection jobs are effective enough, but require much more maintenance than a machine — and researchers have just developed a sniffer machine which may well compete with dogs; the new device uses what is called quantum cascade (QC) lasers to detect any trace vapors of explosive material emitted by a passenger, without the passengers having to remove any article of clothing in the process

  • Camera better than the human eye

    Researchers developed a curvilinear camera, much like the human eye, with the significant feature of a zoom capability, unlike the human eye; the “eyeball camera” has a 3.5x optical zoom, takes sharp images, is inexpensive to make and is only the size of a nickel; the camera will not be appearing at Best Buy any time soon, but the tunable camera — once optimized — should be useful in many applications, including night-vision surveillance, robotic vision, endoscopic imaging, and consumer electronics

  • New glass tops steel in strength, toughness

    Researchers develop glass which is stronger than steel — indeed, the damage-tolerant metallic glass has demonstrated a strength and toughness beyond that of any known material; the new metallic glass is a microalloy featuring palladium, a metal with a high “bulk-to-shear” stiffness ratio that counteracts the intrinsic brittleness of glassy materials

  • Food packaging indicates food freshness

    An estimated 8.3 million tons of household food — most of which could have been eaten — is wasted in the United Kingdom each year because retailers and consumers question whether the food is safe to eat; researchers at Glasgow’s Strathclyde University are developing a plastic indicator that alerts consumers to food that is starting to go off; the new indicator will change color to provide a warning when food is about to lose its freshness