by Sanaa Kamal GAZA, June 12 (Xinhua) -- Three Palestinian teenagers in Gaza Strip invented a smart rescue robot that can help locate people trapped under the rubble of collapsed buildings. The miniature car-shaped device, equipped with Wi-Fi remote control function, was developed by Rama Ibrahim, his brother Ahmed, and their classmate Yousef Aqil, all of whom are secondary school students, following months of research and experiment. Mounted with a camera and an alarm, the rescue robot can be operated through a cell phone application, and notify the rescue team with beeps and cellphone push notifications, the students told Xinhua....