Search results
Results from the WOW.Com Content Network
The eyelid pull is a gesture in which the finger is used to pull one lower eyelid further down, exposing more of the eyeball. This gesture has different meanings in different cultures, but in many cultures, particularly in the Mediterranean, signifies alertness, or a warning to be watchful.
Ocular dominance, sometimes called eye preference or eyedness, [1] is the tendency to prefer visual input from one eye to the other. [2] It is somewhat analogous to the laterality of right- or left- handedness ; however, the side of the dominant eye and the dominant hand do not always match. [ 3 ]
Monocular vision is known as seeing and using only one eye in the human species. Depth perception in monocular vision is reduced compared to binocular vision, but still is active primarily due to accommodation of the eye and motion parallax. The word monocular comes from the Greek root, mono for single, and the Latin root, oculus for eye.
A monocle is a type of corrective lens used to correct or enhance the visual perception in only one eye. It consists of a circular lens placed in front of the eye and held in place by the eye socket itself. Often, to avoid losing the monocle, a string or wire is connected to the wearer's clothing at one end and, at the other end, to either a ...
Caliper is the American spelling, while calliper (double "L") is the British spelling. A single tool might be referred to as a caliper or as calipers — a plural only (plurale tantum) form, like scissors or glasses. Colloquially, the phrase "pair of verniers" or just "vernier" might refer to a vernier caliper.
Eye-gouging is the act of pressing or tearing the eye using the fingers or instruments. Eye-gouging involves a very high risk of eye injury , such as eye loss or blindness. Eye-gouging as a fighting style was once a popular form of sport fighting in the back-country United States , primarily in the 18th and 19th centuries.
One tablespoon of unsalted butter has seven grams of saturated fat, half of the amount of saturated fat the American Heart Association recommends staying under for the entire day.
Impressions of several natural phenomena and the principles of some optical toys have been attributed to persistence of vision. In 1768, Patrick D'Arcy recognised the effect in "the luminous ring that we see by turning a torch quickly, the fire wheels in the fireworks, the flattened spindle shape we see in a vibrating cord, the continuous circle we see in a cogwheel that turns with speed". [8]