It is easy to track eye movements using small cameras that follow the movement of a person's pupils. (newscientist.com)
The side mirrors have been replaced by small cameras, which is the norm for concept cars these days, while the roof is made entirely from glass. (topspeed.com)
For this unique film, fifty small camera crews followed teachers, students, principals, volunteers, and others across 28 public school campuses. (edutopia.org)