Die at a distance Published 22/11/2014 at 867 × 1000 in The Invention of the Stereoscope Put a die at the far end of a table to understand parallel lines of sight from your eyes. Put a die at the far end of a table to understand parallel lines of sight from your eyes. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading...