1. Afterimages Jeffrey R. Regester Greensboro Day School Greensboro, North Carolina

2. STARE at this image, without moving your eyes, until a white slide pops up in about 30 seconds. Then examine the afterimage you see against the white screen.

3. hit space bar to go on to next image

4. STARE at this image, without moving your eyes, until a white slide pops up in about 30 seconds. Then examine the afterimage you see against the white screen.

5. hit space bar to go on to next image

6. STARE at this image, without moving your eyes, until a white slide pops up in about 30 seconds. Then examine the afterimage you see against the white screen.

7. hit space bar to go on to next image

8. STARE at this image, without moving your eyes, until a white slide pops up in about 30 seconds. Then examine the afterimage you see against the white screen.

9. hit space bar to start over