The LEGO difference engine

Lego logic gates be damned, we're stepping up to the Babbage big time now, and the Lego difference engine's where we're at. Andrew Carol's design computes 2nd or 3rd order polynomials to 3 or 4 digits, no small feat for a system built of simple blocks that he's been working at on and off for years. Ah, what a time we live in -- next thing you know they'll be making up balderdash like Lego horseless carriages!