Mr. Mistoffelees Mr. Mistoffelees Mr. Mistoffelees is a character in T. S. Eliot's poetry book "Old Possum's Book of Practical Cats" and its stage adaptation, Andrew Lloyd Webber's popular musical "Cats". He is an important primary character, and one of the most popular of the show. He is also sometimes named Quaxo. Mistoffelees' name derives from the demon Mephistopheles. However, the character is not sinister as the name implies, and instead is described by Eliot as being "the original conjuring cat", who is "always deceiving you into believing that he's only hunting for mice" — a mysterious quiet and small black feline
What Engineers Know and How They Know It What Engineers Know and How They Know It What Engineers Know and How they Know It: Analytical Studies from Aeronautical History (The Johns Hopkins University Press, 1990) () is a historical reflection on engineering practice in US aeronautics from 1908 to 1953 written by an accomplished practitioner and instructor. This period represents the dawn of aviation which was fraught with uncertainties and numerous paths to many possible worlds. The book captures two main conclusions from this period. The first order conclusion of this book is about "what engineers know." Five case studies from the history of aeronautical engineering are used