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00:01:35
The World's First Book Printed with Conductive Ink! The Art of Tinkering is an unprecedented celebration of what it means to tinker: to take things apart, explore tools and materials, and build wondrous, wild art that's part science and part technology. Its cover is printed with a special ink that conducts electricity, allowing readers to make their own circuits right on the book and get in on all the tinkering fun. The wonder continues inside the book, where readers meet 150+ makers and learn the stories behind their beautiful and bold work. Brought to you by Karen Wilkinson and Mike Petrich at the Exploratorium's Tinkering Studio.

00:04:51
A detailed demonstration of how to do the Color Chromatography activity, which lets you see the colors hidden in black ink. Includes a discussion of materials needed.

00:01:12
An introduction to an activity that lets you discover the secret colors hidden in black ink. With a paper towel, a black marker, and a cup of water, create a rainbow of colors while exploring capillary action and chromatography.

00:01:33
Explore the science behind this activity, including capillary action (how the water moves up the paper) and chromatography, or how different elements of the ink are carried along at different rates, allowing you to see that black ink is actually made up of many different colors.