- Log in to post comments
More like this
tags: dragonfly vision, facets, opsin, compound eyes, insects, dragonflies, Dennis Paulson, David O'Carroll, Robert Olberg
Male Megaloprepus caerulatus, PANAMA, Rio Chico Masambi, near Gamboa,
11 August 2005; photo by Julie Craves, a Natural Science Research Associate
at the University of…
A couple of years ago, I was poking around in a European art museum and came across an exhibit of exquisitely beautiful Eastern Orthodox religious paintings, "icons." Beyond being visually striking -- they have an austere, hieratic, distant quality -- they are also, I realized at the time, in a…
When we look at a scene, it often seems as if we perceive it all at once. Yet in fact, we are physically able to accurately view only a tiny portion of the scene at a time. Take a look at this image of a human retina (the back of your eyeball). The portion of the eye responsible for accurate vision…
"All things move and nothing remains still" -- Heraclitus
The history of astronomy can be read as a story of better and better vision. Over the centuries, we have supplemented our vision with technology that allows us to see further and more clearly; while Ancient astronomers, who relied only on…
It is singing "Can't Touch This" ... (notice the large pants it seems to be wearing :-)