Description: The eye responds less to red than it does to blue at low light levels.
Instructions:
Items Used:
Notes: Place 2 x 2 slide into Prado and project onto screen. Slide is 1/2 red and 1/2 blue. Darken room, effect becomes stronger with time. Use Variac with the projector. Math Description: None.
Size: 12" h x 20" w Condition: Good. Hazard: None.
