In this video, I'll be using the ferric chloride that I made in the last one, to make ferric ammonium citrate. This new iron compound is sensitive to UV and I'll use it to make my own blueprint. In ...

My family adores Catan, and it just so happens that there are numerous free files that allow you to create a fully 3D version of its board (this community is a gem, I swear). "Perfect!" I thought.