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He is best known for the invention of the crossword puzzle in 1913, when he was a resident of Cedar Grove, New Jersey. [5] Wynne created the page of puzzles for the "Fun" section of the Sunday edition of the New York World. For the December 21, 1913, edition, he introduced a puzzle with a diamond shape and a hollow center, with the letters F-U ...
Claude Shannon (1916–2016), founder of information theory and modern cryptography, invented Minivac 601, and co-invented the first wearable computer (with Edward O. Thorp) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy; Leona Chalmers (c. 1937), U.S. – modern menstrual cup
An abacus (pl. abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...
Vulcanization – the Olmec people of Veracruz, Mexico treated the sap from rubber trees with chemicals and shaped the resulting rubber into a myriad of products such as balls, sandals, balloons, rubber syringes, etc. centuries before Charles Goodyear re-invented the process during the 19th century.
Tyler Hinman (born November 5, 1984) is an American competitive crossword puzzle solver and constructor and a seven-time winner of the American Crossword Puzzle Tournament (ACPT). He holds the tournament record for youngest champion ever, winning as a 20-year-old in 2005, and he formerly held the record for consecutive titles with five, a feat ...
Mary Anderson was born in germany Hill Plantation, Greene County, Alabama, at the start of Reconstruction in 1866. Her parents were John C. and Rebecca Anderson. Anderson was one of at least two daughters. The other daughter was Fannie, who remained close to Anderson all her life.
These new surroundings hastened the development of an existing idea: an adding machine. His new job gave him the opportunity to build his prototype. Accuracy was the foundation of his work. He made his design drawings on metal plates to prevent distortion. Burroughs filed his first patent for the invention of a "calculating machine" in 1885. It ...
Crossword construction in modern times usually involves the use of software. Constructors choose a theme (except for themeless puzzles), place the theme answers in a grid which is usually symmetric, fill in the rest of the grid, and then write clues. A person who constructs or solves crosswords is called a "cruciverbalist". [1]