Editing Setup (section)

=== Pendulum ===
In order to measure gravity using a simple pendulum we hung the pendulum in the stairwell. At the top of the pendulum a fishing line was hung from a screw eye that was screwed into a clamp compatible with it. The clamp was then attached to a plank of wood that was also clamped to the railing on the stairwell between the third and fourth floors. In order to protect the wall from any damage that could occur, and to stabilize our hanging rig, we put a rubber pad between the wall and the plank of wood. This can be seen in the image. At the bottom of the stairwell we attached a 769.30 g mass to the end of the fishing wire to complete the pendulum.