Tickets for special exhibits are limited and sold on a timed basis. Advance purchase using the print at home option is strongly recommended in order to bypass the box office and guarantee a date and time you prefer. Buytickets onlineor by phone at 215.448.1200.
The Franklin Institute’s four-story Foucault’s Pendulum mimics an experiment undertaken by French physicist Jean-Bernard-Leon Foucault early in 1851. The experiment proved the nature of the Earth’s daily rotation around its axis.