The fourth, fifth, and sixth derivatives of position are called "Snap" "Crackle" and "Pop". What came first, the rice crispy characters, or the physics units?
closed as off topic by David Zaslavsky♦ Dec 11 '12 at 21:40
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I think the cereal characters came first. The reason being that after acceleration and jerk engineers designing cam profiles needed terms beyond jerk that conveyed the drastic effect minor tweaks had to the lift curve and the trio of well established cereal characters suit the bill exactly.