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Some kind of wind systems in the top of some buildings in Uruguay (punta del este)

http://www.flickr.com/photos/jikatu/8449721148/
Lilian D
Lilian D May 08, 2013
Some kind of wind systems in the top of some buildings in Uruguay (punta del este)

http://www.flickr.com/photos/jikatu/8449721148/

I've seen these sensors...

Often 0
Occasionally 0
Rarely 1
Never 4
What is it? 1
2 Comments     6 Tags
Similar Photos: It is a pedestrian crossing sensor. Once people touch it, this displays a red sign which tells one can cross. It is widely used in Germany. NO WAIT ...using electronic toll pay  platform is capable of sensing the flow of Bluetooth devices in a given street differentiating hands-free car kits from pedestrian phones

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