[John Heisz] was contemplating the secrets of the universe when an errant thought led him to wonder, could I use a sheet of paper as the blade in my table saw? He takes a sheet of regular printer ...

In the background, grandma is looking for her sewing kit and finds her husband's circular saw blades. Not funny, granted, but those cartoons never are. What they have is observational truth ...

You can even use a saw on fibre cement panels - with the right saw blade, this is no problem. There are also special circular saws with blades that can cut stone and concrete. However, these are ...