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This project implements a simple and effective laser-based security system using an Arduino board. When a laser beam aimed at a digital LDR module is interrupted, the system triggers an alarm using a ...

An Arduino-based laser security alarm system using a digital LDR module, buzzer, push button reset, and I2C LCD display. The system detects laser beam interruption and triggers an alert with visual ...

In a University of Kentucky laboratory, three small spacecraft stand-ins slid across low-friction air tracks, nudging and pulling one another without thrusters, propellant, or physical contact.

Chinese defense supplier Harbin Xinguang Optic-Electronics Technology has unveiled a new man-portable. anti-drone laser ...

High-energy lasers are spreading around the world. A new field known as counter-directed energy weapons could determine ...

China’s Harbin Xinguang Optic-Electronics Technology debuted two man-portable laser weapons at the Defence Information ...

US firm Aurelius Systems has completed live testing of its Archimedes autonomous directed-energy system ...

As AI-powered security tools become cheaper, faster and more widely available, researchers said they could reshape what the ...

Leon County Schools is testing a new safety system using AI weapon detection and drones to stop active shooters.

The injured teenage survivor of a January 2025 shooting at a Nashville, Tennessee high school recently sued the manufacturer of an “AI gun detection” system that failed to detect the handgun that left ...

With an estimated 94,000 automated license plate readers in America, police and federal agents can almost track your ...