Something has been bothering me for some time. Can the pooled wisdom of the community enlighten me. There must be someone who is privy to the answer here.
On the side or the top of buildings in Cape Town I see these prism shaped devices that are mounted in such a way that they revolve slowly and
send out a reflective flash of light every now and then. I have asked various people and no-one that I know seems to have any ideas.
They are all over the place. I dont know what powers them but the revolve constantly.
On the side or the top of buildings in Cape Town I see these prism shaped devices that are mounted in such a way that they revolve slowly and
send out a reflective flash of light every now and then. I have asked various people and no-one that I know seems to have any ideas.
They are all over the place. I dont know what powers them but the revolve constantly.