Earth & Sky Equatorial Sundial (2) by Carmichael

Granite Equatorial sundial by John Carmichael at Discovery Canyon School, Colorado Springs CO, USA
Owner and Makers
Commissioned by: Academy School District 20
Designed by John Carmichael
Head Contractor: Chris Coulter
Granite & Gnomon by Eric Hendee at Erickson Monuments
Bronze Nodus by NASS member Chuck Nafziger

Description
The equatorial sundial's stone faces and the dateline with the Equation of Time graph are sandblasted onto two 4 inch thick slabs of polished dark rose granite that each weigh about 1500 lb. The 3" thick, 61 1/2" long gnomon is a hollow 1/8" thick stainless steel tube that is reinforced inside with rebar and cement. It has a 6" bronze hand-sculpted world globe nodus bolted to the end. The granite slabs are embedded in 4 inches of concrete. The hour lines are corrected for longitude shift, not that it matters much, since the time shift in Colorado Springs is only about 52 seconds. The dial is just 0.217° east of the Mountain Standard Time Meridian which is located at 105° W. longitude.

Time is read by using the edge of the gnomon rod's shadow- not the center. It is located on the Earth & Sky Plaza at the Discovery Canyon Campus of Academy School District 20. It's a K-12 school which specializes in science, math and avionics.
see websites at: www.sundialsculptures.com/
advanceassociates.com/Sundials/Earth-Sky_Dial/