Howdy Steven,
Same thing reported seen in SL experiments by Putterman et.al. What you are
seeing is a "vortex track". Notice the pic on the left and the screwtype
image is more clear.
We have some UHMW polyethelene distributors with "cavitation " pitting like
this. Years ago we replaced a short section of 4 inch copper pipe from the
discharge of a water pump valve regulator station that showed this like
evidence. Should have saved the pipe as it was a classic demonstration. Part
of the pipe was " rotted" thru on the top side, part had larger indentions
like "shot peen'. The further downstream of the pipe the larger the shot
peen marks inside the pipe. Centrifugal pump bronze impellers often show
evidence of a like phenomena.
Why the actual pipe holes were at the top remains a mystery , except air
bubbles would tend to rise and collect at top.
Richard
Subject: [Vo]:New Video: U.S. Navy SPAWAR San Diego LENR (SOA)
Hot off the "press:"
(2009) U.S. Navy SPAWAR San Diego LENR ("Cold Fusion") CR-39 Sequential
Optical Analysis (Version 2)
http://www.youtube.com/watch?v=8BF8hAfNRZY
Steve
