“ The mechanical clock was self-contained, and once horologists learned to drive it by means of a coiled spring rather than a falling weight, it could be miniaturized so as to be portable, whether in th… David S. Landes
“ The invention of the mechanical clock was one of a number of major advances that turned Europe from a weak, peripheral, highly vulnerable outpost of Mediterranean civilization into a hegemonic aggress… David S. Landes
“ ... the invention of the mechanical clock in medieval Europe. This was one of the great inventions in this history of mankind -- not in a class with fire and the wheel, but comparable to movable type… David S. Landes
“ ... if one is to rely on human judges, it is very important that they never admit to error. David S. Landes
