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Chris Roberts: programmer and designer of Freelancer, Star Citizen, and the Wing Commander games. Warren Robinett: Adventure, Rocky's Boots, & Robot Odyssey. John Romero: game programmer since 1979; known for Commander Keen, Doom, Quake. Jim Sachs: programmer of Saucer Attack and other home computer era games.
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.
Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...
The Sénarmont prism is air spaced, unlike the Wollaston and Rochon prisms. These prisms truly split the beam into two fully polarized beams with perpendicular polarizations. The Nomarski prism is a variant of the Wollaston prism, which is widely used in differential interference contrast microscopy. Thin film polarizers
This is why people in their 40s start needing reading glasses. Some blue-light glasses also include a plus lens to help bring your focus in. These might help reduce eye strain.
Crown glass is a type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low dispersion (with Abbe numbers between 50 and 85). Crown glass is produced from alkali-lime silicates containing approximately 10% potassium oxide and is one of the earliest low dispersion glasses .
Mattel is updating some of its most popular games, like Uno and Blokus, to make them more inclusive. Some of your favorite Mattel games are dependent on color: In Uno, one way to win is by ...
Some of the earliest video games were text games or text-based games that used text characters instead of bitmapped or vector graphics.Examples include MUDs (multi-user dungeons), where players could read or view depictions of rooms, objects, other players, and actions performed in the virtual world; and roguelikes, a subgenre of role-playing video games featuring many monsters, items, and ...