I am often quite thick when it comes to matters of life and typing and this is just another example. Unlike the monolith in 2001, I don't beleive this slate to be expressing any cognitive activity whatsoever. It is both thick in intelligence and thick in width. The thinnest piece is easily an inch wide.
Now I did use a chisel, hammer, mallet and gravity to make the pieces smaller. As it was after 10 O'clock and one baby was already down with another just to go, my wife was less than pleased by the ruckus. I was only however able to get the pieces to break across the grain and not with it. The slate seems to be very fine grained and I don't think with a chisel I would be able to cleave it. Well, I haven't so far anyway. Jeff
In theory there should be no difference between theory and practice. In practice, there is.