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A classic mirror test has yet to be done on manta rays. [87] Another fish that may pass the mirror test is the common archerfish, Toxotes chatareus. A study in 2016 showed that archerfish can discriminate between human faces. Researchers showed this by testing the archerfish, which spit a stream of water at an image of a face when they ...
A mirror image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect , it results from specular reflection off from surfaces of lustrous materials, especially a mirror or water .
He is best known for developing the mirror test, also called the mirror self-recognition test, or MSR, in 1970, which gauges self-awareness of animals. In 1975, Gallup moved to the University at Albany.
The mercury mirror of the Large Zenith Telescope in Canada was the largest liquid-metal mirror ever built. It had a diameter of 6 meters and rotated at a rate of about 8.5 revolutions per minute. It was decommissioned in 2016. [4] This mirror was a test, built for $1 million, but it was not suitable for astronomy because of the test site's weather.
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The image in a flat mirror has these features: It is the same distance behind the mirror as the object is in front. It is the same size as the object. It is the right way up (erect). It is reversed. It is virtual, meaning that the image appears to be behind the mirror, and cannot be projected onto a screen.
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