We’ve talked before about number stations — mysterious shortwave transmitters repeating numbers, presumably for clandestine ...

If you’re into airplanes, you’ve probably had the experience of hearing an unusual aircraft and rushing outside to try and catch a glimpse of it, all while fumbling with a smartphone ...

Abstract: Geometry problem solving has garnered increasing attention due to its potential applications in intelligent education field. Inspired by the observation that text often introduces ...

Abstract: Battery-powered and sensors based Smart Luggage Vehicle, in short BSLV is a smart, battery-operated vehicle used for carrying heavy luggage. The system comes with ultrasonic sensors and IR ...