CJ on Mathematics and Science

A mathematical model/equation  without parameters, like viscosity  in Navier-Stokes equations for incompressible fluid flow, can be used to ...

Pythagoras struggling in vain to avoid collapse surrounded by a worried Society. This is a continuation on a previous post about Norman Wi...

Let there be a World of Finite Precision. Here is a summary of aspects of the 2nd Law of Thermodynamics discussed in recent posts:  2nd Law...

Stephen Wolfram has put forward a new explanation of the 2nd Law of physics based on physics as a form of computation with computational ir...

In the CNPS talk on Febr 3 I tried to expose the virtues of a continuum as a spatial 3d  Euclidean x-coordinate system without smallest sca...

This is an intro to a live video talk I will give on Febr 3 2024 on John Chappell's channel Natural Philosophy: Where Critical Thinking...

The Euler equations in velocity-pressure $(u,p)$ and $(x,t)$-coordinates are invariant under a rescaling of velocity $u$ into $\bar u =\frac...

I am working on a new article to be expanded to a book with the title Euler Was Right, Prandtl Was Wrong   which can be seen as a summary of...

Einsteins ideal as a Theory of Everything ToE is a mathematical model of physics without any parameters.  The standard model of particle phy...

Euler vs Prandtl In 1755 the great mathematician Euler formulated the Euler equations for slightly viscous nearly incompressible flow (of ai...

DFS Direct Finite Element Simulation offers a veritable breakthrough in Computational Fluid Dynamics CFD in the form of best possibl...