The spectacular formations occur when extreme heat and wind conditions combine to form dancing eddies of air. The worst instance on record occurred in Japan in 1923.
Update, June 4, 2014: Because of a copyright claim, we’ve removed the video from this post.
TODAY IN SLATE
The Self-Made Man
The story of America’s most pliable, pernicious, irrepressible myth.
The GOP Senate Candidate in Iowa Doesn’t Want Voters to Know Just How Conservative She Really Is
Does Your Child Have “Sluggish Cognitive Tempo”? Or Is That Just a Disorder Made Up to Scare You?
Naomi Klein Is Wrong
Multinational corporations are doing more than governments to halt climate change.
The Strange History of Wives Gazing at Their Husbands in Political Ads
Transparent is the fall’s only great new show.
Lena Dunham, the Book
More shtick than honesty in Not That Kind of Girl.