Attendees Tune In with FM Radio Transmission

Audience response keypads aren't a new idea: Attendees are each given a small keypad with which to answer questions. They can pick yes or no, or punch in a number that correlates to choices of answers, usually projected on a screen. The audience's choices are tabulated by an on-site computer, then graphically displayed on the screen as bar graphs or pie charts. It takes about three seconds once polling is over to get the results on the screen.

Pretty neat, but it gets better. The late

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