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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 .
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 ...
Glasses are worn for eye protection in some sports, such as squash. Glasses wearers may use a strap to prevent the glasses from falling off. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck to prevent the loss and breaking of the glasses.
Skills. Strategy, probability. Aggravation is a board game for up to four players and later versions for up to six players, whose object is to be the first player to have all four playing pieces (usually represented by marbles) reach the player's home section of the board. The game's name comes from the action of capturing an opponent's piece ...
June 24, 2024 at 7:38 AM. Benchmark. Victor Lazarte’s playing a new game. This time last year, he was the CEO of Wildlife Studios, the Brazil-based mobile games giant he cofounded with his ...
Paying the cost allows the player to move the object to the ready area of their game board, which indicates further costs to pay in order to move the object to the central game board. A player may also cut down a large tree on the central board for a cost of 4 light to obtain a victory point token with a value dependent on its placement on the ...
Related: These glasses are a game changer for those with color blindness. ... That could mean seeing colors differently than others, issues telling the difference between colors or, in rare cases ...
Prism: Light the Way. Prism: Light the Way is a two-dimensional puzzle video game developed by British company Morpheme Game Studios. In the game, the player, with the help of "Bulboids" that emit light beams, must direct the correct color of light into the "Glowbos". To aid in this objective are a variety of mirrors, T-splitters, filter blocks ...