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Strabismus can occur due to muscle dysfunction, farsightedness, problems in the brain, trauma, or infections. [3] Risk factors include premature birth, cerebral palsy, and a family history of the condition. [3] Types include esotropia, where the eyes are crossed ("cross eyed"); exotropia, where the eyes diverge ("lazy eyed" or "wall eyed"); and hypertropia or hypotropia where they are ...
Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred. This blur is due to incoming light being focused behind, instead of on, the retina due to insufficient accommodation by the lens. [6] Minor hypermetropia in young patients is usually corrected by their accommodation ...
For decades, police across the United States have been warned that the common tactic of handcuffing someone facedown could turn deadly if officers pin them on the ground with too much pressure or ...
Sir Isaac Newton FRS (25 December 1642 – 20 March 1726/27 [a]) was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author who was described in his time as a natural philosopher. [7] He was a key figure in the Scientific Revolution and the Enlightenment that followed. His pioneering book Philosophiæ Naturalis Principia Mathematica ...
PARIS (Reuters) - Hundreds of police fanned out across northern France on a massive manhunt for a fugitive gangster known as "The Fly" on Wednesday, a day after he was sprung from a prison van by ...
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Mississippi Gov. Tate Reeves said Monday that he has signed a new law regulating transgender people’s use of bathrooms, locker rooms and dormitories in public education buildings, making ...
2001: A Space Odyssey is a 1968 epic science fiction film produced and directed by Stanley Kubrick. The screenplay was written by Kubrick and science fiction author Arthur C. Clarke, and was inspired by Clarke's 1951 short story " The Sentinel " and other short stories by Clarke. Clarke also published a novelisation of the film, in part written concurrently with the screenplay, after the film ...
Refractive index. A ray of light being refracted through a glass slab. In optics, the refractive index (or refraction index) of an optical medium is a dimensionless number that gives the indication of the light bending ability of that medium. Refraction of a light ray. The refractive index determines how much the path of light is bent, or ...