Hi, I wonder if anybody can help me in conceptualising an idea for teaching students (16+). I call it dimensionality thought probably that's a bad name. It concerns the fact that we llive and are active at a certain scale - at a certain mass - that distances us both from activities of biomolecules at nanoscale and also in terms of planetary dimensions. Many phenomena only matter when you are able to affect them or record them at a relevant scale. Many students (and non-science people too) read the media, and this is aspect often escapes them. Very many things are possible, but often it is interacting at the required scale, at the required timeframe which causes the obstacles. Sorry for those who don't understand what I'm driving at. Ask me more questions and I'll try and refine. Cheers.