More than 100 years ago, Golgi staining on nerve cells opened the gates to modern neuroscience. Scientists recently developed the Technicolor version of Golgi staining, Brainbow, allowing more detailed reconstructions of brain circuits. AFP/Getty Images hide caption

itoggle caption AFP/Getty Images

A worker stands on top of a storage bin on July 27, 2011, at a drilling operation in Claysville, Pa. The dust is from powder mixed with water for hydraulic fracturing. Keith Srakocic/AP hide caption

itoggle caption Keith Srakocic/AP

Steven Pinker says our perception of how violent we are as a species is skewed. Robert Leslie/TED hide caption

itoggle caption Robert Leslie/TED

Particles of the hepatitis C virus are imaged with an electron microscope. James Cavallini/Science Source hide caption

itoggle caption James Cavallini/Science Source

When chef Heston Blumenthal was a kid, he wondered why people loved to dunk their biscuits into tea. Courtesy of the University of Nottingham hide caption

itoggle caption Courtesy of the University of Nottingham

"Beauty is not just for the imagination. It's actually a way of altering human behavior for the better." — Bill Strickland TED hide caption

itoggle caption TED