Check out the images on this blog — created by a photographer, Caleb Charland who also has a strong curiosity about science and captures it in unique ways: http://www.petapixel.com/2010/02/15/scientific-curiosity-captured-in-photos/
You can also check out Caleb Charland's website with even more images from his collection — from demonstrations, to "biographs" (growing bacteria on plates with a variety of colouring techniques) to his latest work.
