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The idea came to him that they could mount the required corrective components on such a device that would allow them to be inserted into the tube before being folded out on robotic arms to the required position to intercept the beams of light from the secondary mirror, correct and then focus them on the various scientific instruments. [4]
Adaptive optics (AO) is a technique of precisely deforming a mirror in order to compensate for light distortion. It is used in astronomical telescopes [ 1 ] and laser communication systems to remove the effects of atmospheric distortion , in microscopy, [ 2 ] optical fabrication [ 3 ] and in retinal imaging systems [ 4 ] to reduce optical ...
A French cleat is a way of securing a cabinet, mirror, tools, artwork or other objects to a wall. [1] It is a molding with a 45 degree slope used to hang cabinets or other objects. The method has been described as simple and strong, [ 2 ] but also elegant since it often can be mounted hidden behind a cabinet.
In event management a stanchion is an upright bar or post that includes retractable belts, velvet ropes, or plastic chains, sometimes in conjunction with wall-mounted barrier devices, barricades, and printed signage [3] and often used for crowd control and engineering people flow and construction site safety.
The Mirror and the Light will track the final four years of Henry VIII’s life, detailing his journey from a self-made man to a feared, influential figure. “The inevitable question remains: how ...
Hannah Kobayashi, from Hawaii, has been missing since she landed in Los Angeles on Friday, Nov. 8. A Hawaii woman who has been missing since she failed to board a connecting flight in Los Angeles ...
The telescope design has two 8.4 m (330 inch) mirrors mounted on a common base, hence the name "binocular". [1] LBT takes advantage of active and adaptive optics, provided by Arcetri Observatory. The collecting area is two 8.4 meter aperture mirrors, which works out to about 111 m 2 combined. This area is equivalent to an 11.8-meter (460 in ...
President-elect Trump's adviser on government efficiency, Elon Musk, called for eliminating the Consumer Financial Protection Bureau.