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Cataract surgery is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. The eye's natural lens is usually replaced with an artificial intraocular lens (IOL) implant. Learn about the causes, symptoms, diagnosis and methods of cataract surgery.
Learn how AI is used in various fields such as internet and e-commerce, language translation, facial recognition, games, agriculture, and cyber security. Explore the examples, challenges, and benefits of AI applications with Wikipedia.
A comprehensive list of notable inventors from various countries, fields and periods, with brief biographies and inventions. Find out who are credited with inventing the television, the computer, the laser, the zipper and more.
Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots. Learn about the mechanical, electrical, and software aspects of robotics, as well as the current and potential applications of robots in various fields, and the history of robotics from ancient times to the present.
A double play in which the pitcher (1) fields a batted ball and throws home to the catcher (2), who retires a runner advancing from third. The catcher then throws to the first baseman (3) to force out the batter.
Prism is a pop record released in 2013 by American singer Katy Perry, featuring dance-inspired songs and personal lyrics. The album debuted at number one in several countries and sold over 4 million copies worldwide, earning Perry a Grammy nomination and a global phenomenon status.
This is a list of the 134 schools in the Division I Football Bowl Subdivision (FBS) of the National Collegiate Athletic Association (NCAA) in the United States. The FBS plays a tournament called the College Football Playoff (CFP) to determine its national champion, but the CFP is not sanctioned by the NCAA.
A liquid-crystal display (LCD) is a flat-panel device that uses liquid crystals and polarizers to modulate light. LCDs are widely used in various applications, such as TVs, computers, watches, and mobile phones.