Stop-Motion Photography, or the use of a series of photographs of one subject over a period of time, is another way of depicting time's passing. These are usually fast-shutter speed images that show changes through time.

The most famous example of stop-motion photography is Eadweard Muybridge's series of a horse running, taken at Stanford:

These images are notable for capturing a set of motions that are too fast for people to observe. Muybridge was able to answer a question to which no one knew the answer: he showed that there is a moment when all of the horse's feet are in the air.

But stop-motion photography isn't just useful for depicting fast motions; it can also depict processes that are too slow for us to detect visually. sLowlife, a project at Indiana University, uses stop-motion photography to depict plants' movements.

The main website for the project is here: http://plantsinmotion.bio.indiana.edu/usbg/toc.htm.

They have some amazing stop-motion videos of plants' motions in response to changing sources of light here: http://plantsinmotion.bio.indiana.edu/usbg/sensing.htm.