The Pentagon has a laser that can identify people from at least 200 meters away by the pattern of their heartbeat.

by David Hambling Everyone’s heart is different. Like the iris or fingerprint, our unique cardiac signature can be used as a way to tell us apart. Crucially, it can be done from a distance. It’s that last point that has intrigued US Special Forces. Other long-range biometric techniques include gait analysis, which identifies someone byContinue reading “The Pentagon has a laser that can identify people from at least 200 meters away by the pattern of their heartbeat.”

Laser Weapon Stops Truck — from a Mile Away

A laser weapon made by Lockheed Martin can stop a small truck dead in its tracks from more than a mile (1.6 kilometers) away, the company announced this week. The laser system, called ATHENA (short for Advanced Test High Energy Asset), is designed to protect military forces and key infrastructure, Lockheed Martin representatives said. DuringContinue reading “Laser Weapon Stops Truck — from a Mile Away”

Soon You’ll Be Able to Turn Your Brown Eyes Blue for $5,000

A new treatment has successfully changed the color of people’s eyes in Latin America, but the procedure isn’t approved in the U.S. yet. For years, a California-based company called Stroma Medical has been publicizing a laser procedure that turns brown eyes blue. Theoretically, this would give brown-eyed individuals the choice to change the tint ofContinue reading “Soon You’ll Be Able to Turn Your Brown Eyes Blue for $5,000”

Laser-transformed metal repels water

Water often damages metals, causing rust, wear and decay. Thanks to an innovative laser process, however, metal is getting its revenge. University of Rochester scientists Chunlei Guo and Anatoliy Vorobyev have developed a technique using extremely precise laser patterns that renders metals superhydrophobic: in other words, incredibly water-repellent. Imagine a much more powerful Teflon —Continue reading “Laser-transformed metal repels water”