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Light Color and Seeing

Peripheral Vision: Experiment

Grab a friend and measure the outer limits of your vision.

Peripheral Vision: Assembly

Build a homemade protractor using your own body parts.

Triple Eye Light Stick | Exhibit Demo

Turn a flickering light into a complete image in your eye.

Exhibit: Vortex

In this video, Exploratorium educator Aiona Bones invites you to look through the vortex.

Disappearing Glass Rods: Exhibit Demo

Find out how to make clear things invisible (temporarily).

Modulated LED: Try Our Challenge

Put your mind to tackling these classic engineering problems.

Colored Shadows: Try Our Challenge

Consider the combinations of colored light that illuminate our world.

Colored Shadows: What's going on?

Experiment with colors using colored light bulbs to cast shadows.

Colored Shadows: More experiments to try

Play with colored lights to learn about human color perception.

Colored Shadows: Materials and assembly

Put simple materials together to experiment with colored lights.

Millions of people around the world struggle to live with corneal blindness—the loss of sight caused by damage to the surface of the eye. It's a treatable condition with a clear solution: a corneal transplant. This Science in the City episode highlights the work SightLife is doing to help end corneal blindness by making transplants possible.