Meyer

“It would be difficult to create the right mood under the present circumstances, but perhaps by accident another beautiful differential equation will come along again, as it once did when I worked with you.” Letter from Meyer to Prandtl, May 5, 1918. Ref. no. GOAR:2647, DLR-Gottingen Archives

Aurel Stodola

“The country (Germany) is like a man with a badly upset stomach who has not yet vomited enough,” Aurel Stodola in 1919 on right-wing putsch in Berlin two weeks earlier. CPAE Vol. 9 Dec. 16 “The Kapp Putsch, also known as the Kapp-Luttwitz Putsch after its leaders Wolfgang Kapp and Walther von Luttwitz, was an […]

Dr. J. Robert Oppenheimer

“We knew the world would not be the same. A few people laughed, a few people cried, most people were silent. I remembered the line from the Hindu scripture, the Bhagavad-Gita: Vishnu is trying to persuade the Prince that he should do his duty and, to impress him, takes on his multi-armed form and says, […]

William John Macquorn Rankine

“A hypothetical theory is necessary, as a preliminary step, to reduce the expression of the phenomena to simplicity and order before it is possible to make any progress in framing an abstractive theory,” William John Macquorn Rankine Outlines of the Science of Energetics, in Proceedings of the Philosophical Society of Glasgow (1855)

William John Macquorn Rankine

“Discrepancy between theory and practice, which in sound physical and mechanical science is a delusion, has a real existence in the minds of men; and that fallacy, through rejected by their judgments, continues to exert and influence over their acts,” William John Macquorn Rankine Introductory Lecture on the Harmony of Theory and Practice in Mechanics […]

Richard Feynman

“Science is the belief in the ignorance of experts,” Richard Feynman “What is Science” presented at the fifteenth annual meeting of the National Science Teachers Association, in New York City (1966), published in The Physics Teacher, volume 7, issue 6 (1969), p. 313-320

Wernher von Braun

“The rocket worked perfectly, except for landing on the wrong planet.” Wernher von Braun (comment on V2 landing on London 1944, Apollo in Perspective : Spaceflight Then and Now (1999))

John Strutt, 3rd Baron Rayleigh

“Without encroaching upon grounds appertaining to the theologian and the philosopher, the domain of natural sciences is surely broad enough to satisfy the wildest ambition of its devotees. The work may be hard, and the discipline severe; but the interest never fails, and great is the privilege of achievement.,” John Strutt, 3rd Baron Rayleigh

Entropy

“You should call it entropy, for two reasons. In the first place your uncertainty function has been used in statistical mechanics under that name, so it already has a name. In the second place, and more important, no one really knows what entropy really is, so in a debate you will always have the advantage.” […]