Optical Illusions

Optical Illusion Optical Illusion (more)Free

Added: 06/30/2006

Release Year: 2006

Stare at this illusion and be prepared to see weird things.

Channel: KillSomeTime

Can you count the passes? Can you count the passes? (more)Free

Added: 06/27/2007

Release Year: 2007

Category: entertainment

Channel: Glumbert

optical illusion optical illusion (more)Free

Added: 09/14/2007

Release Year: 2007

music: rock steady by all saints

Category: entertainment

Channel: YouTube

10 second IQ test 10 second IQ test (more)Free

Added: 05/29/2007

Release Year: 2007

Follow the instructions in the video... how did you do?

Category: Home Video

Channel: YouTube

Optical Illusion - Castle Arch Optical Illusion - Castle Arch (more)Free

Added: 06/27/2007

Release Year: 2007

Illusion's Explanation: Chromatic adaptation An object may be viewed under various conditions. For example, it may be il ...luminated by the sunlight, the light of a fire, or a harsh electric light. In all of these situations, the visual system indicates that the object has the same color: an apple always appears red, whether viewed at night or during the day. This feature of the visual system is called chromatic adaptation, or color constancy; when the correction occurs in a camera it is referred to as white balance. Chromatic adaptation is one aspect of vision that may fool someone into observing an optical illusion. Though the human visual system generally does maintain constant perceived color under different lighting, there are situations where the brightness of a stimulus will appear reversed relative to its "background" when viewed at night. For example, the bright yellow petals of flowers will appear dark compared to the green leaves in very dim light. The opposite is true during the day. Song: Johnny Lang - Lie To MeMore

Category: entertainment

Channel: metacafe