John L. Campbell could not have anticipated what he started. Campbell, a professor of mathematics, natural philosophy, and astronomy at Wabash College in Crawfordsville, Indiana, wrote to both the Smithsonian […]
Get your daily rundown of Philly happenings in less than 10 minutes
John L. Campbell could not have anticipated what he started. Campbell, a professor of mathematics, natural philosophy, and astronomy at Wabash College in Crawfordsville, Indiana, wrote to both the Smithsonian […]
