Did you see my thread with the sinker drill about 8 months back?Originally Posted by MrDark71
Drilling the concrete is a MAJOR job, VERy noisy and dusty and it would be reported in the news and would take over a year of drilling to get the placement and distribution need for the effect seen.
If the building were closed and demo crews worked on it for 2 years installing charges, I doubt what was seen could have been created. The uniformity was ASTOUNDING!
