Friday, September 28, 2012
Eyeshine
Eyeshine is a visible effect of the tapetum lucidum. When a light is shone into the eye of an animal having a tapetum lucidum, the pupil appears to glow. Eyeshine can be seen in many animals, in nature and in flash photographs. In low light, a hand-held flashlight is sufficient to produce eyeshine that is highly visible to humans (despite our inferior night vision); this technique, spotlighting, is used by naturalists and hunters to search for animals at night. Eyeshine occurs in a wide variety of colors including white, blue, green, yellow, pink and red. However, because eyeshine is a form of iridescence, the color varies slightly with the angle at which it is seen and the color of the source light.
Subscribe to:
Post Comments (Atom)
synanthrope
A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...
-
A kouros (plural kouroi , Ancient Greek κοῦρος ) is the modern term given to those representations of male youths which first appear i... -
In the sport of cycling , a chain gang is a group of cyclists in a close knit formation usually of two parallel lines. The formation comes...
No comments:
Post a Comment