the best science on the web about
sight

The Eyeball
Image: Image: iStockphoto.com/fotoadrenalina

The Eyeball

Every moment you're awake, your eyes act like a video camera, sending images to your brain for processing and storage. That's the simplest way to understand sight, the most complex of your five senses.

Discover how your eyes work with your nervous system to make sense of the light beams bouncing off of objects.

Disney
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Amazing Animal Senses

Amazing Animal Senses

Did you know butterflies taste with their feet and earthworms with their entire body? Or that chameleons and seahorses have eyes that can move in different directions? Uncover more sensational senses. More...

Article
Neuroscience for Kids
Experiments to Try

Experiments to Try

Take a walk on the smelly side. Explore the limits of touch. And put your senses to the test with this collection of fun experiments. More...

Interactive
KidsHealth
The Humans with Super Human Vision

The Humans with Super Human Vision

If you're like most people, your eyes can detect a million different colors. But what if you had four cones instead of three? Some women do -- meaning they can see a hundred million colors. More...

Article
Discover Magazine
What Are Your Senses?

What Are Your Senses?

Your senses are always at work, detecting clues about the world around you. Examine how your senses help define you. Then investigate synaesthesia and phantom limbs. More...

Article
Science Museum, London
What Is Color?

What Is Color?

Even scientists have a hard time explaining what color is in a way that's easy to understand. Meet Physics Girl, who won the Flame Challenge — beating out nearly 400 other videos. More...

Article
NBC
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Cybersenses

Cybersenses

Glasses and hearing aids help millions of people, but they can't help the hundreds of thousands who are blind or profoundly deaf. Check out the high-tech tools now changing their lives. More...

Video
Scientific American Frontiers/PBS
Eyes: Small but Mighty

Eyes: Small but Mighty

Why do eyes come in different colors? And how is it that in a fraction of a second, they can tell your brain the size, shape, color, and texture of an object? Find out. More...

Article
TeensHealth
Neuroscientist Sheila Nirenberg, 2013 MacArthur Fellow

Neuroscientist Sheila Nirenberg, 2013 MacArthur Fellow

Professor Nirenberg has developed a method with the potential to bring back sight to people with retinal degenerative disease. Take a look at her award-winning work. More...

Profile
MacArthur Foundation
In Living Color: The Science and Mathematics of Color

In Living Color: The Science and Mathematics of Color

No matter what technology TVs (or computer screens) use, they all produce red, green, and blue light. Why these colors and no others? More...

Article
Tom O'Haver
Jeepers, Peepers: Why Spiders Have So Many Eyes

Jeepers, Peepers: Why Spiders Have So Many Eyes

Like most spiders, jumping spiders have 4 pairs of eyes. Besides great color vision, their "principal eyes" can see ultraviolet light. Those 6 other eyes, dotted around their head, help detect motion. More...

Article
LiveScience
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Making Sense of the World, Several Senses at a Time

Making Sense of the World, Several Senses at a Time

Explore the "McGurk" effect, which means what you hear changes depending on the face you're looking at, along with other wacky illusions from your cross-wired senses. More...

Article
Scientific American
Nervous System: Sight

Nervous System: Sight

Zoom in on your eyeballs, optic nerve, retina, and photoreceptors to see how vision works. Then investigate your blind spot. More...

Article
BBC
Science Bytes: Decoding Our Senses

Science Bytes: Decoding Our Senses

We live in a world where our eyes and ears are bombarded with colors, shapes, textures, and noises of all types. See how our brains translate these sights and sounds into meaningful images and words. More...

Video
PBS
The Retina

The Retina

Want to see a dim star without a telescope or binoculars? Try looking out of the corner of your eye. This site explains why that might work. More...

Article
Neuroscience for Kids
Can Light Make You Sneeze?

Can Light Make You Sneeze?

Do you sneeze when you step out of a dark movie theater into the sun? The sudden exposure to bright light triggers sneezing in about 1 out of every 3 people. Take a closer look at photic sneezing. More...

Video
SciShow

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