Good catch Mio. Those are on top of San Bruno Mountain on Radio Road, and the "OFFICIAL" story is that they are transmission towers for bay area tv and radio stations.
However, the real story is much more secret. I heard that they are the WGT V.E.M. control towers which each transmit on a different frequency that form a harmonic vibration in the balls while in the air by which the flight of the ball is influenced.
if you look very closley you can see a WGT truck parked by the tower in the lower right of the satellite picture.
Maybe Yancy can get the REAL story
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