‘The thing shall be done! Bring me paper and ink,
The best there is time to procure.’
The Hunting of the Snark
In the early days of photography, a question constantly asked was: “When are we going to see a photograph printed in a book by ordinary printing methods?” Necessity being the mother of invention, a method of combining photography with engraving was eventually found, and photogravure was born, to be followed soon afterward by the halftone screen process. A similar question was asked of holography in its early days; and, sure enough, a method was eventually found, this time combining holography with techniques borrowed largely from the electronics and sound recording industries. It became possible ...