i was in khajuraho, india. it was really hot, like 110 fahrenheit. and i was trudging through and all of these people are out in a field. and they're all doing work out there, working in the field. in a corner of the field was a kid, a young kid. he must have been eight years old or so. and that kid's job was to continually keep a great, big clay pot of water cold. and how he did that is he had a gunny sack over the pot. the pot was open like this. he had a gunny sack over like burlap, yeah? and he had a little pot down here and a long stick with a gourd in there. and he would just keep making sure that the gunny sack stayed wet. and as long as he kept the gunny sack wet on that hot day, honeys, the water inside was-- begin with a c and i ain't saying cool. cold. cold. hc. be checking your neighbor. you see how that works, gang? you see how that works? that gunny sack, water is evaporating, right? which water molecules are evaporating, the fast or the slow? - fast. - fast. the fast. what's that leave behind? slow. slow. so the gunny sack then gets a