John Elvesjö and Mårten Skogö (Sweden)
Invention: Eye-tracking device
The eyes are often called gateways to the soul. They have also inspired science to create devices that track and interpret their movements. A significant foray into our understanding of the mysteries of visual observation was made by a team led by Swedish engineer and physicist John Elvesjö. Elvesjö realised that a sensor designed to track the movements of pulp particles could also be employed on the human eye, paving the way for a host of applications.