A 17-year-old Polytechnic High School student in Pasadena developed “Hindsight,” a lightweight wearable that uses radar to detect approaching vehicles or other dangers behind a pedestrian. The device alerts users with beeping and vibration, and the school is rallying behind the invention to improve pedestrian safety.
WHO:17-year-old Cavon Hajimiri, Polytechnic High School; Polytechnic High School community
WHAT:Created “Hindsight,” a wearable radar device that warns pedestrians of approaching vehicles or other dangers via beeping and vibration
WHEN:Reported Aug 20, 2026 at 8:55 PM ET
WHERE:Los Angeles, CA
WHY:Cause not yet established.
Reporting from 1 identified publisher for this event.
