Safety cut rope axe man In the first nuclear reactor, constructed by Enrico Fermi in 1942 under the bleachers of the University of Chicago football stadium, the control rods were held up by a manila rope. A man with an axe was told to cut the rope if the reactor got out of hand. This "safety cut rope axe man" is supposedly the origin of the term SCRAM for an emergency shutdown procedure. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape wordsacronymsenergy
Pedagogical Sketchbook A Book by Paul Klee Half-winged, half-imprisonedTO STAND DESPITE ALL POSSIBILITIES TO FALLThe senses of form and toneA mind so in flux
Half-winged, half-imprisoned The contrast between man’s ideological capacity to move at random through material and metaphysical spaces and his physical limitations, is the origin of all human tragedy. It is this contrast between power and prostration that implies the duality of human existence. Half winged—half imprisoned, this is man! ideasbody
The senses of form and tone Man painted and danced long before he learned to write and construct. The senses of form and tone are his primordial heritage. Sibyl Moholy-Nagy artformdance
A mind so in flux A mind so in flux, so sensitive to intuitive insights, could never write an academic textbook. All he could retain on paper were indications, hints, allusions, like the delicate color dots and line plays on his pictures. Sibyl Moholy-Nagy drawingmind