Snap, Crackle and Pop
|Snap, Crackle, and Pop|
An older version of the three mascots
Andy Hirsch (currently)
David Kaufman (currently)
Danny Cooksey (currently)
Kel Mitchell (currently)
Mark Ballou (currently)
Eric Bauza (currently)
|Occupation||Mascots of Rice Krispies|
Listen to the fairy song of health, the merry chorus sung by Kellogg's Rice Krispies as they merrily snap, crackle and pop in a bowl of milk. If you've never heard food talking, now is your chance.
The first character appeared on the product's packaging in 1933, Grant added two more and named the trio Snap, Crackle and Pop. Snap is usually portrayed with a chef's toque on his head; Crackle often is shown wearing a red (or striped) tomte's tuque or "sleeping cap," and Pop often wears a drum major's shako (sometimes Pop is seen also with a chef's toque, or an odd combination of both a shako and a toque). Corporate promotional material describes their personalities as resembling brothers. Snap is the oldest and known as a problem solver, Crackle is an unsure "middle child" and known as a jokester, and Pop is a mischievous youngster and the center of attention. Likewise, there was briefly a fourth gnome in the 1950s named Pow who represented the claimed explosive nutritional value of Rice Krispies. 
From their original design as elderly gnomes with large noses, ears and hats, Snap, Crackle and Pop were reimagined with younger and more proportional features in 1949. Some time after 1955, their gnome-ish oversized ears became more proportional yet pointed, as seen in common portrayals of elves. They first appeared as animated characters in the 1960s, targeted toward such children's shows as The Howdy Doody Show. The voices of the original gnomes were provided by Daws Butler, Paul Winchell and Don Messick. More recent voices have included Chris Evans, Keith Chegwin, Chad Doreck, Eddie Deezen, Thom Adcox-Hernandez and Dino Andrade. As of 2009, the three gnomes are voiced by Andy Hirsch (Snap), Danny Cooksey (Crackle) and Mark Ballou (Pop).
The trio were used in conservation messages during World War II and briefly re-imagined as superheroes in the early 1990s, but later returned to their original elf-like form. Likewise, there was briefly a fourth gnome in the 1950s named Pow who represented the claimed explosive nutritional value of Rice Krispies.
Leo Burnett Worldwide assigned Chicago-based cartoonist Don Margolis to do Snap, Crackle and Pop for the Rice Krispies boxes as well as other applications. Davidson Marketing also used him for their Rice Krispies assignments. Don did the three gnomes until the end of 1998.
Snap, crackle and pop are terms, based on the Rice Krispies mascots, used for the fourth, fifth and sixth time derivatives of position. The first derivative of position with respect to time is velocity, the second is acceleration, and the third is jerk. The fourth is snap, or jounce, while the fifth and sixth are sometimes called crackle and pop.
- Kellogg's. "Snap! Crackle! Pop!" 2007. Accessed 20 Aug 2010.
- "Rice Krispies Cereal Speaks to You" (PDF). Retrieved 2016-12-31.
- Smith, K. Annabelle. "The Untold Tale of Pow!, the Fourth Rice Krispies Elf". Smithsonian. Retrieved 2019-06-12.
- "4 classic cereal characters: where are they now?". The List TV. 2017-02-24. Retrieved 2019-06-12.
- RiceKrispies.com Snap, Crackle & Pop: Everyone's Favorite Breakfast Buddies Through The Years
- The mag. Mental_floss Magazine "A Second Helping of Cereal Facts." Archived 2008-09-13 at the Wayback Machine 2008. Accessed 20 Aug 2010.
- Visser, Matt (2004-07-24). "Jerk, Snap, and the Cosmological Equation of State". Classical and Quantum Gravity. 21 (11): 2603–2616. arXiv:gr-qc/0309109. Bibcode:2004CQGra..21.2603V. doi:10.1088/0264-9381/21/11/006.
- Gragert, Stephanie (November 1998). "What is the term used for the third derivative of position?". Usenet Physics and Relativity FAQ. Math Dept., University of California, Riverside. Retrieved 2015-10-24.
- Andrew F. Rex; Martin Jackson (2000). Integrated Physics and Calculus. Addison Wesley Longman. ISBN 978-0-201-47397-1.
- Visser, p. 4