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The robotics in bioengineering group has conducted research on the effects of hands-on demonstrations on students' interest in engineering disciplines. Data has been collected over a two year period utilizing pre- and post-demonstration surveys in order to gauge the change in interest because of demonstrations. Projects that were used in order to test the hypothesis include an eye-controlled PowerPoint, slot cars that are driven by flexing the user's biceps, as well as the mind bot project which uses brain waves in order to drive a Lego car. The demonstrations seem to have an effect on the students' interest in the field that the demonstrations are presented.