A Moment of Science

Posts tagged rods

May 9, 2012

 

reindeer

Reindeer Have Ultraviolet Vision

Scientists tested eighteen reindeer with light, and found that their eyes responded to both visible light and ultraviolet.

January 24, 2012

 

two people laying in the grass with their hands over their eyes

Night Vision And Humans: Why Can’t We See Color?

When we are in a fairly dark room, or outside at night away from lights, we can still see, but we can't see the colors of things very well. Why is that?

September 27, 2003

 

Star Light, Star White

The back of your eye, called the retina, has two kinds of cells: rods and cones. In bright light the cones are what we use, while in dim light the cones are less active and the rods take over.

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