The Cones are for seeing in bright light, so the day and the rods for seeing in dim light, so the night. We wanted to find out how long it took for the cones to switch over to the rods, so...
We tested 28 people-7 men, 7 women, 7 boys and 7 girls. We were in a room with lights on, and small white pieces of paper on the floor, covered by a large white piece so that the person couldn't see them. Then, we turned out the lights and asked the person to count how many pieces there were.
above: size of small white paper
results:
Our conclusion is that kids were faster than adults, boys faster than girls. Adult woman were slower than adult men, however kid girls were faster than kid boys.