Security Guard: Excuse me, what are you doing?
Charlie Eppes: A simple experiment. It's a pendulum.
Security Guard: Sir, you and the pendulum need to leave.
Charlie Eppes: Okay ... it drew an ellipse.
Security Guard: Now.
Charlie Eppes: A simple experiment. It's a pendulum.
Security Guard: Sir, you and the pendulum need to leave.
Charlie Eppes: Okay ... it drew an ellipse.
Security Guard: Now.
Security Guard : Excuse me, what are you doing?
Charlie Eppes : A simple experiment. It's a pendulum.
Security Guard : Sir, you and the pendulum need to leave.
Charlie Eppes : Okay ... it drew an ellipse.
Security Guard : Now.
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