Holiday Card 2015

Here is my holiday card for 2015, a tradition of mine going back to 1990.  Enjoy.On the back...

Challenging the Tensor Calculus Status Quo

In this blog, I challenge the vaulted role that tensor calculus enjoys today. I will define a concrete...

Calculating Invervals Between Events

In my last blog, I wrote in detail about zero, one, real numbers, complex numbers and quaternions...

Space-times-time Invariance as Gravity, Part B: Equations of Motion

In Part A, the core idea behind the space-times-time invariance as gravity was detailed. When one...

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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 »