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Underground Utility Colour Codes Explained
Underground utility colour codes are used to differentiate and identify underground utilities to protect it from damage during excavation. There are different types of utilities and in order to tell them apart coloured lines, flags or sometimes both are used. They help mark the location and indicate the type of utility that is buried underground.

I had no idea! (via Tony Finch)
utilities  power  underground  excavation  digging  repair  urban  infrastructure  via:jm 
november 2018 by ignatz
kaputtendorf » Hibernation Tool for Mac OS
hibernate your mac instead of suspending it
osx  mac  power  sleep  hacks  hibernate  via:jm 
june 2009 by ignatz
Today's Outlook - The California ISO
How screwed is California's power situation today and what should you do?
california  power  environment  shortages  monitor  politics 
july 2005 by ignatz

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