This infographic discusses each of the following structures of the brain and their functions: Frontal Lobe, Parietal Lobe, Occipital Lobe, Cerebellum and Temporal Lobe. It also discusses the right and left hemispheres of the brain and what they are responsible for controlling.
The Smallest Drugs Here is the updated version of the "smallest drugs" collection that I did the other day. Here are the criteria I used: the molecular weight cutoff was set, arbitrarily, at aspirin's 180. I excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use. As a small-molecule organic chemist, I only allowed organic compounds - lithium and so on are for another category