Peter Erskine\
Ballymena, N. Ireland. Opened 8.2000, permanent installation.
Irlanda
"Calendario solare dell'arcobaleno", ECOS Centro Ambientale, Ballymena,
N.Ireland. Commissione permanente aperta nell'Agosto 2000. Centro Planetario,
North Yorkshire, Inghilterra.installazione permanente.
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"Rainbow Sundial Calendar" is a permanent installation in the ECOS Environmental Centre in Ballymena, Northern Ireland. Hour and month lines being painted on the wall in this installation photo mark the hours, months, solstices and equinoxes with astronomical accuracy. A 30' X 30' moving cross of spectrum sunlight, powered by the rotation and tilt of the Earth tells the time and date. On cloudy days a laser pointer driven by a solar tracking program fills in for the rainbow.
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