Lego Logic Gates
Thud457 writes "LEGO Logic Gates - It's like Babbage, but with bricks. All the gates except XOR are here, and he goes on to develop a clocked flip-flop. While practical mechanical computers may be out, even at the nanotechnological scale, nanomechanical memory may be in. "
If nothing else perhaps the the submission page should contain a "source" field. It may be too much to ask the editors to catch this sort of thing (seems they can't even eliminate dups from their own site; sigh) but a quick look at the more popular geek sites (automated or otherwise) might be in order.
Merlin.