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Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia. Even when the double vision images ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...
DUBAI (Reuters) -A helicopter carrying Iranian President Ebrahim Raisi and his foreign minister crashed on Sunday as it was crossing mountain terrain in heavy fog, an Iranian official told Reuters ...
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 ...
A laser shone in Denmark keeper Kasper Schmeichel’s face before he saved Harry Kane’s penalty in extra-time. Laser pen incident during Euro semi-final not yet a police matter, Met confirms ...
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
It wasn't until after a decade in the fold, after his family pleaded with him, after the FBI raided his office, apartment and hotel room, Michael Cohen testified Tuesday, that he finally decided ...
Denmark goalkeeper targeted by green laser pen during European Championship semi final This article was edited anonymously from IP 152.115.67. 134 on Thursday 8 July as follows: "English Football fans favor (sic) the green color (sic), as it as (sic) somewhat camouflaged against the green pitch, but when in the eyes of the opposing team, it ...
May 17, 2024 at 10:25 PM. Thunderstorms have killed seven people and left more than half a million homes and businesses without power in south-eastern Texas. Residents in the area could be without ...