
The proliferation of projection technology and electrical gadgets in the 1920s allowed people to conjure spirits. Well, spirits of a mechanical variety anyway. These ghoulish Jazz Age illusions entertained audiences and fooled ardent believers. But some thought that maybe this wave of high-tech ghosts could be put to use beyond the parlor tricks of supposed mystics. The November 1924 issue of Science and Invention magazine proposed using a slide projector and a little smoke to coax a confession out of alleged murderers—a "novel third degree method," as they put it. From the ... Read More










