Computer scientist, Professor Kevin Warwick, gave himself a superhero-style extra sense. He put a chip in his arm linked to the nerves that run from his fingers to his brain.
The chip connected to a gadget that sent out sounds and picked up the echoes like a bat (and submarine) does.
When it heard an echo, the chip sent a signal to his brain using the nerves in his arm: just as happens when we feel something we touch.
He could tell when people moved in front of him even when he was blindfolded as he could ‘see’ their echo.
Superhero powers: super senses