Month: January 2014

By David Cromwell ‘Propaganda’ sounds like an old-fashioned word from a bygone era. It evokes images of the Nazis in WW2, particularly Reich Minister of Public Enlightenment and Propaganda Joseph Goebbels, or Soviet leaders in the →

By David Edwards   Readers will recall the famous perceptual illusion in which the brain switches between seeing a young girl and an image intended to represent an ‘old crone’. The picture of course remains →