So hey, did you know there’s going to be a big old science fair in DC next month? No? Neither did I until I caught sight of the USA Science and Engineering Festival Twitter feed last week, and it took about 10 seconds to hook me on the whole idea. It’s two weeks of science, SCIENCE, SCIENCE!, from Oct. 10-24, capped off with a weekend of events on the National Mall on Oct. 23-24. And here’s where you come in, dear readers: they need volunteers.