The machine whirred softly and paced back and forth, laying down a line of green goo. Litchfield Middle School eighth-graders Kate Spanos and Ariana Machain watched intently as the machine moved ...

[Thanassis] says he was inspired by our series of Forth articles from a few years back, and his goal was to build a Forth interpreter / compiler from scratch, put it into a Blue Pill microcontroller.