As a scientist, I am trained to be wary of 'apophenia' or the propensity to see patterns where there are none, and specifically 'pareidolia' or seeing images in random stimuli, like seeing a dragon in the clouds. Pareidolia can be very useful as a visual artist. To the scientist it is a hazard, unless it recognized and happens to inspire ideas (as it often does to the artist). I think this training is why, I recognize in Kevin Van Aelst an artist with similar interests to me, but a mind which works quite differently than my own. His photographs show things masquerading as other things, often with a scientific or mathematical bent. (His C.V. says his background is psychology- perhaps this explains the lens through which he views his subjects.)
Consider what appears at first glance to be a pile of laundry, but on closer examination reveals a lesson in anatomy, complete with colours to indicate the nature of the blood (blue, deoxygenated vs. oxygenated red) in cardiovascular circulation:

The Heart, 2009, digital c-print, 40 x 30"
Or the fractal egg (with yolks illustrating the Cantor set), as if he sensed that a yolk was simply the first in a set to be subdivided. A pattern, which is not really there...

Or the more straightforward, map of Hawaii.

Hawaii, 2007, digital C-print, 12 x 18

Some of his portfolio is just that: metaphors in unexpected media. Like cellular mitosis in doughnuts, complete with sprinkle chromosomes:

Cellular Mitosis (krispy kreme), 2005, series of 6 c-prints, each 16 x 20
Or clouds nomenclature in a coffee cup:

Common Clouds, 2007, Series of 9 digital C-prints and labels, each print: 16 x 20
But metaphor is also both a hazard (because it can lead to inaccuracy) and an invaluable tool (because it can lead to insight) to the scientist. Ultimately, the scientist and the artist share communication as a paramount goal. As such the place where they intersect is an area rife with possibility and creativity - and often humour.