In 1969, Oppenheimer's Exploratorium opened in San Francisco, California, and the Ontario Science Centre opened near Toronto, Ontario, Canada. By the early 1970s, COSI Columbus, then known as the Center of Science and Industry in Columbus, Ohio, had run its first 'camp-in'.
In 1969, Oppenheimer's Exploratorium opened in San Francisco, California, and the Ontario Science Centre opened near Toro,nto, Ontario, Canada. By the early 1970s, COSI Columbus then known as the Center of Science and Industry in Columbus, Ohio had run its first 'camp-i,n'.