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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.
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.
Bell Labs is an American company that originated from the Bell System telephone conglomerate and developed many groundbreaking technologies, such as the transistor, the laser, and Unix. Learn about its origins, locations, subsidiaries, and Nobel and Turing laureates.
CRISPR is a technique to modify the genomes of living organisms by using a bacterial enzyme called Cas9 and a synthetic guide RNA. It can be used for various purposes in biotechnology and medicine, but also raises ethical concerns.
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.
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.
A comprehensive biography of the German polymath and writer, who is widely regarded as the greatest and most influential writer in the German language. Learn about his life, works, achievements, and legacy in various fields of literature, science, and politics.
Kelsey Grammer is an American actor, comedian and producer, best known for his role as Dr. Frasier Crane on Cheers and Frasier. He was born on February 21, 1955, in Saint Thomas, U.S. Virgin Islands.
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