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Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers have ten minutes to create a science activity. This week’s “secret” ingredient: rulers and meter sticks! Mesocyclone, centerpiece of the Turbulent Landscapes exhibition, is a 40 foot tall, working model of a hurricane. Powerful fans at the base of the structure create complex airflow patterns. These patterns are made visible by water vapor released from the top of the structure.