On Feb 20, 9:49*pm, Zz Yzx wrote:
On Rob H's blog he posted a pic of "pins and feathers" used to split
rocks.
I did my disertation on granite, so it caught my eye. *IDAGS and found
this:
http://www.youtube.com/watch?v=cBMcMGBhUVk
The guy splits a 26,000 lb chunk of granite with a 2 lb sledge in an
hour. *Amazing.
See more in ABPW.
The easy way:
http://www.youtube.com/watch?v=YlDQvgM4pKM