The robot operated fastest and most efficiently when it ran near resonance - near the robot's natural frequency - similar to the way a grandfather clock's pendulum swings at its natural frequency.
The pendulum swings with great regularity.
Cherish the time with the family, the time is old, but our heart is not old, the years in the ticking pendulum swinging far away, only treasure is the best gratitude.
The pendulum swings back and forth.
The pendulum swings on and on.
Maybe they give in, and the pendulum swings back into sweetness.
Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing.
The familiar pendulum swing was to happen once more, and then stop.
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