To Swat a Fly; and other Virtual Realities

A five-year effort to develop a virtual reality world for flies has helped us figure out why it is so hard to swat a fly.  Because they see things much faster. Movies for humans are projected at 24 frames per second. “For insects to see a movie they need 200 to 300 frames per second,” the professor explains. “Under 200 frames per second they would see the individual images flickering, just like we would at 10 frames per second.”