I have made a little interactive cartoon thingy about this concept. Double click on “osmosis.html” and it will open in your browser. Use the browser zoom controls to make it huge. May be useful as plenary around the whiteboard, in an interlude, etc etc.
It can be previewed on my web site.
Please note: in order to provide a rich interactive experience, my resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work. If, however , you move or delete any of the files from this hierarchy, the resource will not work.
There is a beautiful graphic depicting this on the internet. However, it is a bitmapped graphic . I have adapted it as a a scalar graphic, with improvements. Please get in touch if you want an editable version.