Purkinge's FiguresIn optics, figures produced on a wall of uniform colour when a person entering a dark room with a candle moves it up and down approximately on a level with the eyes. From the eye near the candle an image of the retinal vessels will appear projected on the wall. Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
|
24 X 7Private Tutor
Explore Molarity Calculator , Statistics Tutor
|