artificial light - real rain

what you see in the background is rain illuminated with a single flash triggered remotely at full power .
another flash in front of the subject at 1/16th power shot though an umbrella.
this is a very cool idea i learned from a photography blog. the subject and the photographer stays under a shed. a wireless flash is covered with transparent plastic and exposed to the rain behind the subject to illuminate rain.

photography is all about light - fortunately, it's not limited to sunlight.