Do you remember those commercials that asked, " How many licks does it take to get to the Tootsie Roll center of a Tootsie Pop? Me neither, it was before my time ;) Well, some engineering students at Purdue University in Indiana decided to find out in a more scientific manner: They invented a licking machine. As it turns out, it takes an average of 364 licks to get to the center of a Tootsie Pop.
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