“The Stream Engine”—a technology that processes data streams in real time, enabling direct analysis of continuously incoming data without intermediate storage—draws its visual metaphor from the 18th century’s defining invention: the steam engine. The wordplay is simple yet effective: adding a single letter ‘r’ transforms “steam engine” into “stream engine.”
[A] The combination of the background of the picture and another visual object may evoke an (English) term that is ambiguous in German and thus “calls up a second theme”.
[B] In addition, this combination may result in a new subject or an invented word through an equally pronounced but differently spelled word combination, as well as through a differently pronounced but equally spelled word.
[C] Sometimes it is the title of the work that reveals the background and thematic association of the image.
[D] And in the one or other case it is just a modified photograph.