Interesting Websites

https://www.computerhistory.org/tdih/ https://www.pyxll.com https://www.mathpax.com/myposts/software/pyxll/ http://omz-software.com/pythonista/ https://www.mathpax.com/myposts/software/pythonista/ http://www.adaptedmind.com/ https://www.pythonanywhere.com/ https://notebooks.azure.com/ http://jupyter.org/ http://www.3blue1brown.com/ https://www.enthought.com/product/canopy/ https://www.numberphile.com/  

A single star orbiting the black hole in the center of the Milky Way 07/2018

https://www.sciencenews.org/article/star-orbiting-black-hole-einstein-gravity-general-relativity 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)