Code Lines, Union Pacific Railroad, Harvard, CA, 2010.
All of the pixels, none of the rattlesnakes, at https://www.flickr.com/photos/mattblaze/4612902834
#photography
Code Lines, Union Pacific Railroad, Harvard, CA, 2010.
All of the pixels, none of the rattlesnakes, at https://www.flickr.com/photos/mattblaze/4612902834
#photography
@mattblaze@federate.social
I have worked on a code line SCADA system for N&W Railroad that used DC signals, some of them I were told were carried along fencing wires. The field stations where they terminated had a wall covered in electromagnetic relays maybe 12" by 18" in size, and REALLY loud.
@resuna@ohai.social Neat!