Sundials - World's Oldest Clocks

North American Sundial Society

In a sunny corner of Ken & Molly Cooper's garden, located at their home in the Del Webb community of Manteca, CA, is an 8x12 foot horizontal sundial.  The hours lines are delineated by alternating light tan and red stone pebbles.  The hours themselves are squares of marble with Roman numerals from 6am to 6pm.   The 4 foot gnomon is about six inches wide, made of a concrete core and flanked with marble.  The hour lines are correctly laid out for a thick gnomon.

Surrounding the dial is a low brick wall decorated with lizards and butterflies.  According to Rose Alban Risso, correspondent for the Manteca Bulletin, "The central focus [of the garden], a huge sundial that took him hundreds of hours to make, is the realization of a childhood dream and fascination with astronomy. The two concrete spheres here were hand painted by the retired PG&E employee. One is designated as the night sky and the other represents daytime. An armillary time piece occupies another corner of the sundial..."

Read more about the Cooper's garden and sundial at: http://www.mantecabulletin.com/section/1/article/151684/