Optical illusions are caused by a mismatch of what the eyes see and what the brain interprets, according to ABC News. The brain is often tricked into thinking something is moving when contrasting colors are placed in close proximity to each other and repeated. This is why when people want a pattern to move like an optical illusion, the shapes of the pattern are outlined in black and white.Continue Reading
Optical illusions, however, are not always caused by repeating patterns. One example of this is when people see stars when they hit their heat really hard. People know they are not actually seeing stars, but the hard blow to the head causes neurons in the eyes to become visible for a short period of time. These neurons are misinterpreted by the brain as being light, so they closely resemble stars that people see in the night sky.
The term optical illusion is not the best way to describe this phenomenon, according to ABC News. It is best to call them visual illusions, because the illusion is caused by more than just the eyes. It is caused by the primary visual cortex, which is the area of the brain that helps to process visual information.Learn more about Optics & Waves
A good Myron Mixon recipe uses baby back ribs with a rub, marinade, spritz and hog glaze, according to ABC News. This recipe takes more than two hours to cook.Full Answer >
Top-reviewed laundry detergents include Wisk Deep Clean, Tide Plus Bleach Alternative Vivid White + Bright, Tide for Cold Water, Cheer Stay Colorful for Darks, and Tide Ultra Free & Gentle, according to ABC News. ABC News based its list on an annual laundry detergent survey conducted by Consumer Reports.Full Answer >
The British Guiana one-cent magenta stamp is the rarest stamp in the world, according to ABC News. It is the only surviving stamp of the 1856 one-cent stamp issuance. The stamp was produced in Georgetown, British Guiana. The stamp has an auction value of anywhere from $10 million to $20 million.Full Answer >
While urban legends claim that drinking Mountain Dew can harm sperm count, no reputable studies have backed up that claim, according to ABC News. Some people have taken this unsupported claim to mean that Mountain Dew can be used as a contraceptive, About.com states.Full Answer >