Can a ring of gelatin measure crowd reaction at an NHL game?

There are things you expect to see in the stands at an NHL arena. No longer absent from the list: a red ring of gelatin, perched on a three-foot, electronic platform built with proprietary, “jiggle”-measuring technology.On April 3, at UBS Arena in Uniondale, N.Y., the New York Islanders and Philadelphia Flyers played the first game with the Jell-Ometer in the building.Advertisement