Leonardo da Vinci

“The great bird will take its first flight on the back of a great swan; filling the universe with wonders; filling all writings with its fame and bringing eternal glory to the nest from which it came,” Leonardo da Vinci

Constatin

The Reynolds equations are still a riddle. They are based on the Navier-Stokes equations, which are still a mystery. The Navier-Stokes equations are a viscous regularization of the Euler equations, which are still an enigma. Turbulence is a riddle wrapped in a mystery inside an enigma. ~Constatin, P. “Euler equations, NSE and turbulence,” Mathematical Foundations …

Leonhard Euler

“Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.” Simmons, G., Calculus Gems (1992) Leonhard Euler “God, when he created the world, arranged the course of all events so …

John von Neumann

“Young man, in mathematics you don’t understand things. You just get used to them.” Zukav, G., The Dancing Wu Li Masters: An Overview of the New Physics (1984) John von Neumann

Wernher von Braun

“Basic research is when I am doing what I don’t know what I am doing.” Simons, Y. R. M., “Work, Society, and Culture,” New York Times (1957) Wernher von Braun

Sreenivasan and Antonia

“But we can sympathize readily with a theorist who is frustrated by the uncertainly surrounding the experimental results. Definitive progress in the subject is linked inextricably to obtaining measurements of vastly improved quality. It would be presumptuous to relegate theory to the role of merely explaining empirical facts. On the contrary, we emphasize that theory …