Template:POTD/2007-07-24
Picture of the day archives
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2007 July
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Picture of the day
The world's largest
compass rose
, drawn on the desert floor at
Edwards Air Force Base
in
California
,
United States
. Painted on the
dry lake
near
Dryden Flight Research Center
, it is inclined to
magnetic north
and is used by pilots for calibrating
heading indicators
.
Photo credit:
NASA
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