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Hands-on activities, online exhibits, articles, videos, and more, all about seeing.

Cow's Eye Dissection

Find out how your eyes work and watch a real dissection of a cow's eye.

INTERACTIVE

Look into Infinity

Images of images of images can appear to repeat forever.

HANDS-ON

Magic Wand

See pictures in thin air.

HANDS-ON

Light Painting

You can make a light painting with a light source, a darkened room, and a digital camera.

Blue Sky

Now you can explain why the sky is blue and the sunset is red.

HANDS-ON

Mix-n-Match

You can mix just three colors of light to make over 16 million different colors!

INTERACTIVE

Moiré Patterns

When you overlap materials with repetitive lines, you create moiré patterns.

HANDS-ON

Size and Distance

A clueless way to determine the size of an object.

HANDS-ON

Mona

Leonardo's famous painting is used in an interesting perceptual experiment.

INTERACTIVE

Peripheral Vision

Test the limits of your peripheral vision.

HANDS-ON

Thread the Needle

Using two eyes gives you depth perception.

HANDS-ON

Persistence of Vision

Your eye and brain hold on to a series of images to form a single complete picture.

HANDS-ON

Pictures from Light

With a lens, you can bend light to make pictures of the world.

HANDS-ON

Monthly Wallpaper

Decorate your desktop with some of the most intriguing pattern and perception images from the Exploratorium.

Jacques Cousteau in Seashells

Seeing is a cooperative effort involving your eyes and your brain.

HANDS-ON

Pinhole Magnifier

Who needs expensive optical equipment?

HANDS-ON

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Not Fade Away

One man's journey into blindness

Seeing

What do you really know about what you see?

Exploratorium Imagery

Here are some Exploratorium images for you to enjoy.

Bob Miller's Light Walk

Artist Bob Miller's "Light Walk" at the Exploratorium will change the way you look at light, shadow, and images.

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