grandmastershek
Graduate Poster
- Joined
- Nov 2, 2009
- Messages
- 1,461
It looks like the rest of the building is not weakened much at all, which the CD companies say is safer in earthquake-prone areas.
If you read the patent it has a number of points truthers plug their ears to. 1. The structure needs no pre-weakening & 2. It is usable for all building designs.