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
Three Perfect Tools An Article by Tim Bray www.tbray.org There is a particular joy in a product that just does what you need done, in about the way you expect or (thrillingly) better, and isn’t hard to figure out, and doesn’t change unnecessarily. Here are three to learn from. toolsperfectiondesign