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A crossword(or crossword puzzle) is a word gameconsisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter, while the black squares are used to separate ...
Description. The cat's eye design originated in the UK in 1934 and is today used all over the world. [1] The original form consisted of two pairs of retroreflectors set into a white rubber dome, mounted in a cast iron housing. This is the kind that marks the centre of the road, with one pair of cat's eyes showing in each direction.
Direction, position, or indication sign. An example of a British direction sign on the approach to a roundabout. A direction sign, more fully defined as a direction, position, or indication sign by the Vienna Convention on Road Signs and Signals, is any road sign used primarily to give information about the location of either the driver or ...
Barnes Wallis (1887–1979), bouncing bomb. Josiah Wedgwood (1730–1795) invented jasperware. Edward Weston (1850–1936), Weston cell. Frank Whittle (1907–1996), co-inventor of the jet engine. William Winlaw (d.1796), patented agricultural machinery. Arthur Wynne (1862–1945), inventor of crossword puzzle.
William F. Shortz (born August 26, 1952) is an American puzzle creator and editor who is the crossword editor for The New York Times. He graduated from Indiana University with a degree in the invented field of enigmatology. After starting his career at Penny Press and Games magazine, he was hired by The New York Times in 1993.
Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings.
Hoyt moved to Chicago in 1990 to work as an option and futures trader on the floor of the Chicago Board of Options Exchange. While working there, he began developing various toys, games and puzzles in his spare time. In 1993, he sold his first game, Crossword the Game, to Parker Brothers. Shortly after, in 1994, he started developing games full ...
Garrett Morgan. Garrett Augustus Morgan Sr. (March 4, 1877 – July 27, 1963) was an American inventor, businessman, and community leader. His most notable inventions were a type of three-way traffic light, [1] and a protective 'smoke hood' [2] notably used in a 1916 tunnel construction disaster rescue. [3][4] Morgan also discovered and ...