Arkadiusz Jadczyk - Open system

 The new math post, Tensors,  is here . It starts like that: Tensors Posted on   2025/12/10   by   arkajad Originally, while writing the  pr...

 New post on my other blog

 I do like the idea that we are living in a cyclic universe. Cycles repeat, but each new cycle has some memory of the previous cycles. There...

  This post is the third chapter of the "Primer" saga, based on   "A primer on the (2 + 1) Einstein universe" - a paper...

Galileo Galilei was a key precursor to Isaac Newton and modern science. In Pisa, he famously conducted (or at least proposed) experiments by...

  The last post, " Flow of time and flow of space ", ended with "In the next post we take a look at what kind of life can r...

Time flows. That much is not surprising. Either time flows through us, or we flow through time—the effect feels the same, as long as the dir...