Lego Turing machines

They were never meant to be built, let alone out of Legos, and yet, here they are.

Of course, the tape is finite…damned real world constraints.

And the prize for **SDMB Uber Geek ** of 2005 goes to…

Uber Geeky it is. And yet, so cool.

Bah, I still say that the massive tinker-toy computer has got them beat.