Book excerpt: It’s a breezy new day and along with a tempest in a chocolate milk glass, Jesse’s presented with a messy new mystery when Dorky Dougy loses his lunch while spinning on the merry-go-round. The big question is, why did the ballistic barf fling outwardly, as Dougy spun? Learn all about these centrifugal and centripetal forces that make up the vomit vortex!