A stack septic system is an alternative to conventional septic systems when poor soil conditions or high water tables are present. It requires more maintenance and can be more expensive, but can be landscaped and add visual interest to a garden. A stack septic system is a type of alternative septic system that is used […]
Pile tests use motion and sound sensing to evaluate concrete pile integrity and locate defects. The ASTM Standard – D 5882-00 is used to standardize testing. Sonic recording and echo tests are used to test battery integrity. The length and standing time of the concrete post is determined by sound wave speed. Various methods are […]
The Mound Builders were numerous ancestral Native American tribes who built sophisticated mounds across North America for various purposes. They were not a single tribe, but many groups with advanced cultures and civilizations. Europeans wrongly assumed that Native Americans could not have been the mound builders, leading to their expulsion from their lands. Each group […]
