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An evaporating dish is a piece of laboratory glassware used for the evaporation of solutions and supernatant liquids, [a] and sometimes to their melting point.Evaporating dishes are used to evaporate excess solvents – most commonly water – to produce a concentrated solution or a solid precipitate of the dissolved substance.
Margaret Petherbridge Farrar (March 23, 1897 – June 11, 1984) was an American journalist and the first crossword puzzle editor for The New York Times (1942–1968). Creator of many of the rules of modern crossword design, she compiled and edited a long-running series of crossword puzzle books – including the first book of any kind that Simon & Schuster published (1924). [1]
Glass evaporating dishes, such as watch glasses, are primarily used as an evaporating surface (though they may be used to cover a beaker.) The Petri dish is a flat dish filled with a nutritious gelatin that allows for microorganisms to quickly grow, its named after its inventor Julius Petri in the 1880s.
Hoyt is the inventor of numerous well-known puzzles, games and brain teasers including USA Today Word Roundup, USA Today Up & Down Words, Jumble Crosswords, TV Jumble and more. He is the current co-author of Jumble , the most syndicated daily word game in the world.
John Wesley Hyatt (November 28, 1837 – May 10, 1920) was an American inventor. He is mainly known for simplifying the production of celluloid.. Hyatt, a Perkin Medal recipient, is included in the National Inventors Hall of Fame.
Crosswordese is the group of words frequently found in US crossword puzzles but seldom found in everyday conversation. The words are usually short, three to five letters, with letter combinations which crossword constructors find useful in the creation of crossword puzzles, such as words that start or end with vowels (or both), abbreviations consisting entirely of consonants, unusual ...
Lonnie George Johnson (born October 6, 1949) is an American inventor, aerospace engineer, and entrepreneur, best known for inventing the bestselling Super Soaker water gun in 1989. He was formerly employed at the U.S. Air Force and NASA, where he worked at the Jet Propulsion Laboratory. [2]
Scheffler cooker at JNV school in Leh, India.. Wolfgang Scheffler (born 1956) is the inventor/promoter of Scheffler Reflectors, large, flexible parabolic reflecting dishes that concentrate sunlight for solar cooking in community kitchens, bakeries, and in the world's first solar-powered crematorium. [1]