0 Members and 1 Guest are viewing this topic.
Actually, I am kidding.
He must have had a very long piece of chalk to reach the top of that blackboard!
Actually, the boards I have seen like this are hung like theater curtains.
That board is probably set up to move up as needed.I imagine there is a large portion which is behind the lower wall and as the board is used the button or manual control moves the board up until that maximum height is reached. Presuming that which we see, is fully extended.
... says something about Geometry but not womens.
That's the kind of thing physicists watch for in these movies. 
I think you two are now discussing the equation for extreme maleness.