The light from your scene actually changes the electrical charge in each silver halide crystal, making an invisible image
, or latent image, that is sensitive to film developer (a chemical used to develop film).
In some of the photographs, the picture stands like a screen in front of another, invisible image
, dissolving the vanishing point that photography usually puts into focus.
Badesha's early inventions helped improve photoreceptors, the surface that carries the invisible image
of a document after it's been exposed to light.
The phony search engines are built with tracking pixels-tiny, invisible images
embedded on a page that are used to monitor and track user activity-that gather personal information from the user for the marketing firm.