Badar Rashid decided to find out what white and grey matter inside a brain look like. He started with an image of neuron bundles taken using scanning electron microscopy, and blew it up to 4,000 times its actual size. He then added colour to the black and white result according to his own aesthetic.
The image appears in Physics Today (DOI:10.1063/PT.3.1651).
(Image: Badar Rashid, UCD)
Great image. Theses are actual neurons that have been given color.