When Hurricane Katrina forced New Orleans poet Shelton Alexander to evacuate his home, he took his truck and video camera to the Superdome. He escaped the chaotic shelter a few days later with a truckload of people and video documentation of history.
In 1971, meteorologist Tetsuya Fujita created the Fujita Scale, which allowed scientists to categorize tornadoes, aiding in predictive weather patterns. Fujita revolutionized the understanding of thunderstorms, tornadoes, hurricanes and typhoons.