Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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?

share|cite|improve this question

closed as off topic by David Z Dec 11 '12 at 21:40

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

+1 Wow haven't heard these terms since i last played with camshaft profiles, tweaking the 4th, 5th and 6th derivatives of lift. For those in doubt, yes there are official terms used for higher order derivatives. – ja72 Oct 19 '12 at 18:18
For even higher order derivatives and also integrals see:… – vtt Nov 11 '12 at 2:23
up vote 6 down vote accepted

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.

share|cite|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.