In the first post of this series we have picked up the question whether a Big Bang at the beginning of the universe and a finite speed of light imply a finite universe. In the 2nd post we saw that … Read More
This post series is about the question whether one can exclude by some simple arguments that the universe is infinite. I write about it because some presently popular science videos, which illustrate the Big Bang as an explosion, may create … Read More
We human beings have difficulties with understanding infinity in a variety of contexts, not only in pure mathematics. One such context is the development of the universe on big scales. Many more people are interested in questions about the universe … Read More
My post series on the rod/slot paradox in two dimensions slowly but surely comes to an end. I hope that my readers have gained some new insights and a deeper understanding of the root of the paradox: The change of … Read More
We continue our analysis of the so called “rod/slot paradox” in the Special Theory of Relativity. In this post we want to directly compare two important scenarios for possible rod/slot encounters – namely a collision scenario and a transit scenario … Read More