Author:
Title: Wristwatch- the Frequency of the Balance and the Spring
Description: 0. No Binding. Ill.: Valdis Zimulis. Drawing, An ink & crayon illustration, approx 8.5x13.5 inches.The image of an equation describing the working of a wristwatch was a presentation from Valdis Zimulis to Mrs. Francine Eisen, his senior year mathematics teacher at the NY High School of Music & Art, upon his graduation in 1984. Good.

Keywords: Valdis Zimulis