"Poncelet" Quotes from Famous Books
... friction in screws having their threads of various forms, has led M. Poncelet to this very important conclusion, namely, that the friction in screws with square threads is to that of equal screws with triangular threads, as 2.90 to 4.78, proving a very important advantage of the former over the ... — The Mirror of Literature, Amusement, and Instruction, No. 351 - Volume 13, Saturday, January 10, 1829 • Various |