Snap, Crackle and Pop 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.
Winchester Model 1903 balances the recoil forces so that the breech bolt does not move rearward until the bullet has left the muzzle of the barrel, and therefore allows the bullet to be fired with no loss of energy. The original design of this self-loading mechanism required Winchester to design a custom cartridge (the .22 Winchester Automatic) to go along with it. This mechanism was redesigned for the Model 63 to allow it to fire the .22 Long Rifle cartridge, which by then had become much more popular. The Model 1903 was advertised as an "automatic rifle". In modern times, it is more