Knowtex

Colors... What are they really? Are there the same for all of us? And for other animals? How does color addition or subtraction work? How do they work on computers? And on printers? The mysterious (but not dark) world of colors is actually very colorful!

Painting with light and colour.

"Spectrum of Time" and "Sunrise" are permanent installations that opened 5.1999. The Kokerei Zollverein is a renovated coking factory converted to an exhibition site in the heart of the German coal mining region.

The Cybernetic works of Nicolas Schöffer revived elements of constructivism and kinetic art into a new syncretism using light as a binding ingredient.

I WALK into the operating theatre feeling vulnerable in a draughty gown and surgical stockings. Two anaesthetists in green scrubs tell me to stash my belongings under the trolley and lie down.

How does light speed up after leaving glass or water? What do light and the President of the United States have in common?

A CERN result suggesting that subatomic particles travel faster than the speed of light may not be what it seems.

A sustainable lighting project which aims to bring the solar bottle bulb to disprivileged communities nationwide.

Lightning Trigger: A Lichtenberg figure being created by a tap from a nail. In just a few hundred nanoseconds, electrons trapped in plastic exit suddenly as a bright, branching spark.

Lighting architect Rogier van der Heide offers a beautiful new way to look at the world -- by paying attention to light (and to darkness). Examples from classic buildings illustrate a deeply thought-out vision of the play of light around us.