Light Color and Seeing

Play with colored lights to learn about human color perception.

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.

Explore why different soap films are different colors.

Split light using an outdated form of music storage.

Learn why the colors on a soap film develop and change.

Explore the afterimages your eyes and your brain create. 

Do the Bird in a Cage experiment with some basic materials.

Do you have a staring problem?

Make a bird appear in a cage using only your eyes. 

Enjoy the cloudscape of China's Weizi Gorge.

Tune in for a 2001 total solar eclipse in Zambia.