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The word translated as beam refers to a rafter or a log [2] such as would hold up the roof of a house. [3] A beam is a difficult thing to get in one's eye, but it functions as a humorous and hyperbolic metaphor for an extreme flaw. [3] The metaphor comes from woodworking and carpenter workshop. [1]
To see it, one must be in a dark room, with one eye closed; one must look straight ahead while moving a light back and forth in the field of the open eye. Then one should see the sixth Purkinje as a dimmer image moving in the opposite direction. The Purkinje tree is an image of the retinal blood vessels in one's own eye, first described by ...
If your home is insured for $100,000, which includes your roof, and you have 125 percent extended replacement cost coverage, you actually have $125,000 in coverage, should the $100,000 not be ...
Closed/open distinction is used in two ways to describe truss roofs. Closed truss: A truss with a tie beam; or; Roof framing with a ceiling so the framing is not visible. Open truss: A truss with an interrupted tie beam or scissor truss which allow a vaulted ceiling area; or; Roof framing open to view, not hidden by a ceiling. [4]
One of the first steps in diagnosing diplopia is often to see whether one of two major classifications may be eliminated. That involves blocking one eye to see which symptoms are evident in each eye alone. Persisting blurry or double vision with one eye closed is classified as monocular diplopia. [15]
Inside America's Prosthetic Eye Dynasty. n November 1954, 29-year-old Sammy Davis Jr. was driving to Hollywood when a car crash left his eye mangled beyond repair. Doubting his potential as a one-eyed entertainer, the burgeoning performer sought a solution at the same venerable institution where other misfortunate starlets had gone to fill their vacant sockets: Mager & Gougelman, a family ...
With intense lighting, the eye can constrict the pupil, yet allow enough light to reach the retina. The more the eye resembles a pinhole camera, the less it depends on focusing through the lens. [d] In other words, the degree of decoupling between focusing and convergence needed to visualize an autostereogram is reduced. This places less strain ...
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