| http://www.w3.org/ns/prov#value | - How big are the spheres, how far apart are they, and how bright do they need to be?If, for example, you are suspending these from the ceiling so they are mostly viewed from the sides and bottom, I find that wide angle LEDs at one side of the sphere light it up pretty well.If these are more than a couple feet apart, any logic-level communication will be problematic.
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