They are stimulated to think outside the box and experiment to test their new knowledge.

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The place still carries the scars of its last experiment with the ballot box, in August 1999.

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In two of the trials, the box was dark for 12 minutes and then illuminated for 48 minutes with either long-wavelength red light or short-wavelength blue light directed at the subjects' corneas. (Light color is determined by its wavelength.) The box was dark in a control experiment.

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In the third phase of the experiment a male was placed in the cage over the box where the female had once been, and the amount of aggression towards this male from the nesting male was measured.

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Subjects stared into a light box containing light-emitting diodes (LEDs) for 60 minutes in each experiment.

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