Calls a low-level procedure getframe in turn for each half of the image and then waits through a specified decay period, the exposure.

These use the relatively long decay period of the phosphor glow to reduce flickering (and, therefore, eye-strain).

These are atoms, which respond sensitively to electric and magnetic fields, have decay periods that are relatively prolonged, and electrons, which for all intents and purposes actually operate in classical orbits.

This Russula has a long and persistent decay period, and, in the Pacific Northwest region of the United States where the study was conducted, provides a "nearly year-round substrate for mycosaprobic species".

Once irradiated the sample is left for a specific decay period then placed into a detector, which will measure the nuclear decay according to either the emitted particles, or more commonly the emitted gamma rays.

These atoms have a number of peculiar properties including an exaggerated response to electric and magnetic fields, long decay periods and electron wavefunctions that approximate, under some conditions, classical orbits of electrons about the nuclei.