Mr. Mistoffelees George de la Peña. In the 1998 DVD production of the show, Mistoffelees is portrayed by Jacob Brent, reprising his Broadway role. In the 2016 Broadway revival the part is played by Ricky Ubeda. When Neil Patrick Harris hosted "Saturday Night Live" in 2009, Bobby Moynihan played Mr. Mistoffelees in a "Save Broadway" sketch. 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
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