Haha. Props for shed-related sub-heading.
If I could find my uni notes from 20 years ago I could post a wonderful sketch of a 'shed vortex'.
But sadly such things, along with my drawy skills, are lost to teh mists of time...
(
joefish It's hard for thee to kick against the pricks,
Thu 19 Jul 2012, 12:23,
archived)