Hummingbird Feeders. Hummingbirds get the energy they need to maintain their astonishing metabolism primarily from flower nectar and the sugar water they find at feeders (here's the recipe). Think of them as miniature flycatchers, and sugar is just the fuel for getting their real nourishment.
afÂ·terÂ·imÂ·age. n. A visual image that persists after the visual stimulus causing it has ceased to act. Also called photogene. (ËÉËftÉrËÉªmÉªdÊ).
Ghosts / Multiple Images after LASIK. After refractive surgeries like LASIK, LASEK, and PRK, some patients see multiple images, sometimes called ghost images or ghosts. The medical term is monocular polyopia, which literally means one eye, many images.. Ghosts are caused by corneal irregularities after LASIK. Some patients see a single ghost image, whereas other patients see many. Ghost images may be relatively transparent or so opaque that it is impossible to discern which is the ghost and which is the real image.