Today, when almost every major city in America has a science museum with hands-on, interactive exhibits, that particular format of education seems pretty obvious. But it wasn't always.
In 1969, Frank Oppenheimer opened the Exploratorium, the first American museum to use these now-familiar educational tools. The experiment was sort of a combination of the skills Oppenheimer had learned as a high school science teacher (he spent several years teaching school after being blackballed from research science due to Red Scare paranoia) and what he saw happening in European science museums of the time.
Oppenheimer would have turned 100 years old today. Celebrate with this video, where he explains the ideas that led to the creation of the Exploratorium. It's a fascinating look at the once-revolutionary origins of a paradigm that was so successful, we now take it completely for granted.
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.