"An Artist Creates Fog in San Francisco," Smithsonian.com

Fujiko Nakaya is soft spoken. I could barely hear her during our interview outside of San Francisco's Exploratorium at Pier 15, especially with a fork lift beeping behind us nine days before the opening of the science museum and the debut of her latest fog sculpture, Fog Bridge.

I leaned in to what she had to say: "Observation is imagination."

Read more in "An Artist Creates Artificial Fog in San Francisco," at Smithsonian.com.