Two kinds of events evade the naked eye: those happening too slowly to be noticeable, and those happening too fast to be discerned. While a natural process usually cannot be accelerated for observation, technology has enabled people to catch the moment when a fast process occurs and record it as impressive images.
Scientific images usually have a clear distinction between the object of interest and the background. Classical painting adopts a similar perspective between the foreground and the background. However, such distinctions are in a sense artificial, as they depend on where the viewer’s attention is accorded.