Newtonian Gravity with a Tiny Test Mass

I will try to keep my Newtonian wig on. Digressions will be in well-defined sidebars. Time to serve...

The 3 Masses in the Action for Newtonian Gravity

This blog is straight old Newtonian gravity. A goal is to understand where the three kinds of masses...

Holiday Card, 2013

Another year, another card inspired by what I am thinking about in physics.Inside the card it reads...

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Doug SweetserRSS Feed of this column.

Trying to be a semi-pro amateur physicist (yes I accept special relativity is right!). I _had_ my own effort to unify gravity with other forces in Nature. It ran into quite a number of technically... Read More »