Trinity: the first four seconds. Oppenheimer later told journalists, “If you ask: can we make them more terrible, the answer is yes; if you ask: can we make more of them, the answer is yes; if you ask: can we make them terribly more terrible, the answer is-probably.”
Cutaway explanation of the O-Ring disaster within reports of one Prof. R. Feynman.
Apparently, laminar flow was traditionally called Hagen-Poiseuille flow, named after Hagen’s work in 1839. In 1839, Hagen saw transitional effects between laminar and turbulent flow, which would not be collapsed until much later through the experiments of Reynolds.
What I am about to say on the phenomena of turbulent flows is still far from conclusive. It concerns, rather, the first steps in a new path which I hope will be followed by many others. The researches on the problem of turbulence which have been carried on at Göttingen for about five years have unfortunately left the hope of a thorough understanding of turbulent flow very small. The photographs and kinetographic pictures have shown us only how hopelessly complicated this flow is.L. Prandtl (1926)
Shall I refuse my dinner because I do not fully understand the process of digestion?Oliver Heaviside according to von Karman and Biot, on the subject of turbulence