This is your brain on a microscopic level

Scientists at Harvard University and MIT, undaunted by the vast scope of the project, have undertaken to map the circuitry of the human brain. They're working in a field called connectomics, whose new knowledge will help researchers understand the neural mechanisms behind mental illness, cognitive development, among other medical questions.

Find out how a microneuroanatomist uses an "automatic tape-collecting lathe ultramicrotome" on Wired: Mapping the most complex structure in the universe: Your brain