We can alter the pattern on the screen by inserting a pane of glass in one beam’s path. Glass slows the light, so the peaks and valleys of its waves no longer match those from the other beam. A certain thickness of glass slows one beam just enough so its peaks arrive with the valleys of the other. Different areas of the screen now turn dark, where the light in the two beams interfere with each other destructively. If we were to place a photon detector at such a spot, no light would register.
This article covers editions in the series: black label (1970s), colour-coded spines (1980s), and the most recent editions (2000s).
Books of the Year, including John Le Carré’s old spy and Mathias Énard’s tortured musicologist; the creepy miracles of technology; George Orwell at the BBC; why we forget; the evolution of fraudsters; fifty years of Frank Zappa; Robert Louis Stevenson’s final years – and much more
Cultural imperialism has taken both traditional and modern forms. In the past centuries, the Church, educational system, and public authorities played a major role in inculcating native peoples with ideas of submission and loyalty in the name of divine or absolutist principles. While these "traditional" mechanisms of cultural imperialism still operate, new modern instrumentalities rooted in contemporary institutions have become increasingly central to imperial domination. The mass media, publicity, advertisement and secular entertainers and intellectuals play a major role today. In the contemporary world, Hollywood, CNN and Disneyland are more influential than the Vatican, or the Bible.