The Dope on Nicotine -Smokers are well aware of the nicotine fix, but how does this poisonous alkaloid work in the brain? Illustrated with striking animation stills created by Dr. Rochelle Schwartz-Bloom, a pharmacology professor a Duke University Medical Center, this piece traces nicotine's life cycle in the brain.
On Fire - This virtual laboratory lets you explore the basics of combustion, including how a fire ignites, what a flame is made of, and how burning molecules rearrange themselves.
