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Until 2000, the US reduced the accuracy of GPS for civilian applications. The UK removed street signs and railway station names in anticipation of German invasi
by robotresearcher 5y ago
Until 2000, the US reduced the accuracy of GPS for civilian applications. The UK removed street signs and railway station names in anticipation of German invasion in WWII. Kuwaitis removed street signs when Iraq invaded in 1990.
'Where the streets go' is strategically valuable information.
- hermitdev 5y agoMy understanding is that the resolution of commercially available satellite imagery is restricted by the US. I don't recall details, just passing references from the show "What on Earth?"
- nradov 5y agoCommercial satellite operators licensed in the US are restricted to no more than 25 cm imagery resolution. Of course that limit doesn't apply to foreign operators. And it doesn't apply to aircraft either; many of the "satellite" images you see on Google Maps were actually shot from airplanes.