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On July 14, 2022, YouTube made a special playlist and video celebrating the 317 music videos to have hit 1 billion views and joined the "Billion Views Club". [ 65 ] [ 66 ] On April 1, 2024, the communications app Discord incorporated a short trailer video into their in-app April Fools' Day prank regarding loot boxes .
A compound prism is a set of multiple triangular prism elements placed in contact, and often cemented together to form a solid assembly. [1] The use of multiple elements gives several advantages to an optical designer: [2] One can achieve spectral dispersion without causing the deviation of the beam at the design wavelength.
A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a mirrored surface or ...
The short term (2-hour) amelioration of unilateral neglect introduced by Rosetti et al., 1998 sparked an interest in converting this short-term effect into a long-term rehabilitative effect. The following is the progression of scientific studies conducted to investigate prism adaptation's potential rehabilitative effects:
Porro prisms are most often used in pairs, forming a double Porro prism. A second prism rotated 90° with respect to the first, is placed such that light will traverse both prisms. The net effect of the prism system is a beam parallel to but displaced from its original direction, with the image rotated 180°.
Single-male breeding systems—or monogamous societies—tend to show smaller testis size than do multi-male breeding systems or extra-pair copulation (EPC) societies. Human males live largely in monogamous societies like gorillas, and therefore testis size is smaller in comparison to primates in multi-male breeding systems, such as chimpanzees.
The YouTube Kids app features parental control settings that allow parents to limit screen time, and restrict users from accessing the search tool. Parents can use a passcode or their Google account to protect these settings, and configure profiles for multiple users to tailor their experiences.
A Trijicon 3.5x35 ACOG prism sight with a Trijicon RMR reflex sight mounted on the top.. A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights.
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