Around this time of year, we like to look back at our favorite episodes. Next week you'll find out Dan's favorite episode from 2011. This week, we revisit Mark's favorite topic of the year, snack mix. Aesthetics, physics, engineering and Chuck Norris are all involved in this two-part episode made one by the magic of audio. Also check out our snack mix video for Slate, where Dan boldly braves torture to push the boundaries of snack mix consumption.

By the way, what was your favorite episode of 2011?

Photo: Flickr CC / bradleypjohnson