mark buettner
skram1v
communication
Amazing when you think that this "old school" technology still runs along side the railroad tracks . And now the communication is carried by fibre-optics.
272
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0
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Uploaded on April 25, 2013
Taken on April 20, 2013
communication
Amazing when you think that this "old school" technology still runs along side the railroad tracks . And now the communication is carried by fibre-optics.
272
views
0
faves
5
comments
Uploaded on April 25, 2013
Taken on April 20, 2013