03-11-2016, 06:22 PM
This is not a tunnel boring machine but a different way to build tunnels. The tapered "Lego" blocks are just a modern variation of the technique used by builders over 2,000 years ago. It's the technique of laying them that is new. You can fast forward through parts of the video, but be sure to see the end. Read the brief article too.
http://inhabitat.com/crazy-zipper-truck-...block-ltd/
http://inhabitat.com/crazy-zipper-truck-...block-ltd/
"You can be young without money but you can't be old without money"
Maggie the Cat from "Cat on a Hot Tin Roof." by Tennessee Williams
Maggie the Cat from "Cat on a Hot Tin Roof." by Tennessee Williams