Wednesday, September 26, 2012

Cyanotype Printing

I know a lot of people are excited about the Go Big Read selection (Radioactive by Lauren Redniss for those of you who haven't seen it around yet) because for the first time it incorporates the physical sciences.  There's even more to the book than meets the eye.  Redniss used some cool techniques to introduce even more character to Radioactive.

First of all, parts of the cover glow in the dark.  The illustrations were made using a technique called  cyantotype printing. According to Redniss' website:
Cyanotype is a camera‐less photographic technique in which paper is coated with light‐sensitive chemicals. When the chemically-treated paper is exposed to the sun’s ultraviolet rays, it turns a deep blue color. 
If you're interested in cyanotype printing, the Madison Public Library is holding a few classes on it.  If you're interested, you can register and get more information here.

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