Eye see you!!

What an eye-full! A human eye has one lens; a dragonfly's eye has up to 30,000 facets, or surfaces. The facets wrap around its head so the speedy insect can see where it has been as well as where it's going. I wonder which is more amazing; That the dragonfly has 30,000 facets/surfaces or that someone had so much time and resource to count them!