ECOS Environmental Centre
ECOS Millennium Environmental Centre, Kernohans Lane, Ballymena, Northern Ireland, United Kingdom
Ballymena, Northern Ireland,
2000
![](https://erskinesolarart.net/wp-content/uploads/2015/02/ireland-interior1.jpg)
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.