Quite a nice look. It's interesting how Physics and geometry problems are often best indicated with rough hand-drawn diagrams. If you draw a freehand triangle w

Quite a nice look. It's interesting how Physics and geometry problems are often best indicated with rough hand-drawn diagrams. If you draw a freehand triangle with chalk on a board, you can't help but seeing it as an idealised triangle - an indication of some symbolic representation engine in the brain.