Concrete Sparks

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

   There's a driveway down the street from me which has marks left 
over from a time, over 35 years ago, when the power line overhead 
broke for some reason and arced (spelling???) into the concrete, 
leaving melted trails.  I'll see if I can get a picture of it when 
the lighting highlights the tracks and post it.  Not as pretty as 
most of the pictures I've seen but still interesting and shows some 
of the same branching detail.

Ed