[William Finucane] is making his own litmus paper by harnessing the power of cabbage. The process is much easier than the faux gunpowder he made, as it take just the one ingredient and a few kitchen tools. In case you've forgotten your High School chemistry, Litmus is a set of dyes that change color when exposed to basic or acidic materials. It is common in liquid form, or as a paper. [William] … [Read more...]