Interesting Websites  

A single star orbiting the black hole in the center of the Milky Way 07/2018 In a paper published July 26 in Astronomy & Astrophysics, a team of researchers reports the observation of a hallmark of general relativity known as gravitational redshift.  The measurement is the first time general relativity has been confirmed in the region near a supermassive black hole. As light escapes a region with a strong gravitational field, […]

Brom’s Method 09/2017

Rigid Shaft Foundation Design User Input ______ Load Factors (Factor_vertical, Factor_lateral) ______ Foundation Geometry (Diameter, Height, Depth, Discounted Depth) ______ Soil Cohesion (Cu) ______ Design Guidance (Bearing?, Skin Friction?) ______ Allowable Bearing Stress ______ Allowable Factor of Safety Output ______ Bearing Stress Ratio ______ Skin Friction Ratio Karl Hoitsma, P.E. (khoitsma)