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Pendulum law demonstration excellent for student exploration of the principles of the pendulum and acceleration due to gravity. This apparatus serves two learning purposes as it allows students to study both pendulum and gravity principles. The pendulum consists of two 1in steel balls and one 1in wood ball each attached to a piece of string a pendulum clamp which holds them in place a sturdy wood support and base. Instructions included.
American Educational Products have a lead ship time of 21 days.