I love geometry #幾何学 in general. It's a vast theme, and there's no way to provide a d…
The year 2024 will go down in history as the first major outbreak of periodic cicadas in…
I came across the following 12 digit number: Before proceeding, the header image is fro…
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It is often heard that 37 is the most common choice when people are asked to choose a 2-…
I've learned that there are many articles which talk about numerals (number symbols) 数…
Continued from my post in X (Twitter): Around 10+ years ago, Big Data became very popul…
I am not a religious person. Although I love paying visits to Shintō shrines (and also …
As I wrote in my post in X (Twitter), I had a vague interest in remote islands such as …
Suddenly, a memory from about 30 years ago came back to me. In 1993, the small company w…
"The Prague Cemetery" by Umberto Eco contains the following statement by Édouard Drumon…
First of all, I am not a professional mathematician, so what follows is just gibberish b…
In February 1971 my mother suggested that I would travel to Ōkuchi City (大口市), now I…
First of all, I don't have any intention to write a novel. I should clearly mention that…
Several topics on which I wish to write... My memory of Tachikawa (立川) where I was bo…
