Sorry, blog link is this: http://educationimproved.blogspot.com
Not sure how I copied wrong one.
You need it only if you want to see the drawing about the finger on the knot.
Thanks. We will replace http://educationimproved.blogspot.com/2013/06/public-schools—occupied-territory.html with your newer link http://educationimproved.blogspot.com/ Please hit the abuse button the next time. We can see your request faster this way. Thanks.
Of course the crucial difference is that Rube Golberg contraptions WORKED.