![](https://s3images.coroflot.com/user_files/individual_files/214312_n9CASvmzjK6Vun4u6Fnagvmw_.jpg)
An O shaped wall "clock" that shows passing time
![](https://s3images.coroflot.com/user_files/individual_files/214312_YHQlQb2YSRu1AN0KEQVwdhVj5.jpg)
O'clock tells time with light refraction patterns
![](https://s3images.coroflot.com/user_files/individual_files/214312_lHjlHkVBwErtrjy5xkICO3dlM.jpg)
Two light sources move within the structure (as clock hands move); and the moving lights create changing light effects.
![](https://s3images.coroflot.com/user_files/individual_files/214312_mjuhz9olhTez2fdZwGCzZ20g6.jpg)
The precise cuts on the crystal allow the light patterns to be consistent.
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