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
I am here I am here, in this work. A maker's mark is a peculiar sign. Ancient brickwork established presence through small details marking 'it': the detail itself. The great historian of bricks, Alex Clifton-Taylor, observes that what most counts about them is their small size, which just suits the human hand laying a brick. A brick wall, he says, "is therefore an aggregation of small effects. This implies a human and intimate quality not present to the same extent in stone architecture." Richard Sennett, The Craftsman Most cities were mostly built by improvisationThe joy of the humble brick details