Categories Articles XKCD’s Randall Munroe on his new book How To and the joys of using science to build lava moats Post author By crystalg Post date September 3, 2019 The Verge – All Posts Tags Book, Build, Joys, Lava, moats, Munroe, Randall, Science, Using, XKCD’s ← Food Waste Is a Huge Environmental Problem. Here’s 5 Ways to Reduce Yours → 5 Tips to Successfully Sell Your Company