Before long the high-pitched whine of a drone could be heard circling the hospital grounds. As it passed over the lab’s parking lot, it released a red cardboard box, attached to a paper parachute.

This tag reflects signals back to the drone in the form of millimeter waves. These waves can penetrate materials such as cardboard and plastic and work in total darkness as well. This makes them ...

Kevin Hernandez and Dutch Alessi of Virtual Realty Rehab talk about VRR’s journey, and how they’re exploring the commercial sector.

According to earlier reports, two more drones were found fallen in the north and south of Moldova. Police posted photos of the cardboard drones, which carried no explosives. On the same day ...