A robot that finds lost items
  
    
    
   
    
    
    
    
    
    
    
    
    
  
     
     
     
Researchers at MIT have created RFusion, a robotic arm with a camera and radio frequency (RF) antenna attached to its gripper, that fuses signals from the antenna with visual input from the camera to locate and retrieve an item, even if the item is buried under a pile and completely out of view.