The contest entry was a spring‐coupled triple pendulum. It was used to demonstrate the character of normal modes and in particular a mode that has highQeven with the center pendulum highly damped. The coupling of one of the springs to a pair of pendulums could be varied while they were swinging and with this adiabaticity in the effect upon a normal mode was observed. In the discussion the mathematical simularity to the equations of three coupled quantum mechanical levels is pointed out. The eigenstate in metastable hydrogen atoms that survives passage through the spin filter of a polarized ion source is compared to the high‐Qmode observed in the triple pendulum.