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The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
A Dove prism. The path of a beam through a Dove prism. A Dove prism is a type of reflective prism which is used to invert an image. Dove prisms are shaped from a truncated right-angle prism. The Dove prism is named for its inventor, Heinrich Wilhelm Dove. Although the shape of this prism is similar to the shape described by a Dovetail joint ...
List of countries and dependencies by area. Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies by land, water, and total area, ranked by total area. The entries in this list include, but are not limited to, those in the ISO 3166-1 standard, which ...
DuckDuckGo was founded by Gabriel Weinberg and launched on February 29, 2008, in Valley Forge, Pennsylvania. [2] [13] Weinberg is an entrepreneur who previously launched Names Database, a now-defunct social network. Self-funded by Weinberg until October 2011, DuckDuckGo was then "backed by Union Square Ventures and a handful of angel investors ."
A polarization rotator is an optical device that rotates the polarization axis of a linearly polarized light beam by an angle of choice. Such devices can be based on the Faraday effect, on birefringence, or on total internal reflection. [1] Rotators of linearly polarized light have found widespread applications in modern optics since laser ...
The free-electron laser FELIX Radboud University, Netherlands. A free-electron laser ( FEL) is a fourth generation light source producing extremely brilliant and short pulses of radiation. An FEL functions much as a laser but employs relativistic electrons as a gain medium instead of using stimulated emission from atomic or molecular excitations.
Miss Universe 2024. Miss Universe 2024 will be the 73rd Miss Universe pageant. It will be held in Mexico for the first time since the country last hosted in 2007. [1] [2] Sheynnis Palacios of Nicaragua will crown her successor at the end of the event.
google .com /glass. Google Glass, or simply Glass, is a brand of smart glasses developed and sold by Google. It was developed by X (previously Google X), [9] with the mission of producing a ubiquitous computer. [1] Google Glass displays information to the wearer using a head-up display. [10]