We may receive a commission on purchases made from links. If you have an interest in electronics and have been hanging around DIY tech forums for a while now, chances are you already know what an ...

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 ...

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

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

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

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

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 ...

Sleek black devices well-hidden on high poles, around corners, or atop streetlights dot the roads of towns and cities all ...

From adhesive mounts to permanent screw-in bases, here's which security camera installation method works best and when.