Thanks to very interesting (and very simple) web site of Paul Hsieh GeekPress, I want to share today with you two little gems about English scripture. You certainly knew that the alphabet we use (A to Z) has not always existed. You may have suspected that it was evoving in time from older scripts. Matt…
One million useless figures The “most useless page” of this web site shows the first million decimal figures of PI (Do you remember your math? PI=3.14, more or less). All this is a kind of « virtual partnership » with French scientific magazine La Recherche whose December 2005 issue is titled : « Pi, le maître nombre » (Pi, the Master number). There,…
This post is part of a small series of non-university studies (guest posts from enlightened amateurs) on Roumazeilles.net. So, we sometimes welcome a few authors whose works may be of a wider interest or simply original. The work below has been written by Marion Jonchères, in November 2020. Yves Roumazeilles 1. Introduction: Business understanding, target…
So, I decided to share some information which would distract us all beer drinkers by concentrating more on the process of drinking and on drinking less (let’s be sure not to abuse any substance, even when it is pleasant/nice). A great/long paper about a well-documented book titled “A natural history of beer“, by George Scialabba.…
These last days, there was a lot of talk about traffic ajms obsevred on the road to Mount Everest summit. They were the cause of several dramatic accidents in 2019, like in the previous years. Most people would not imagine how challenging survival is at high-altitude, without even counting on the huge physical exhaustion from…
Designed to help in a computer science and algorithms teaching course, these are great ideas of algorithm descriptions using only simplified drawings and no word (styled like Ikea assembly instructions). I love them. Idea-instructions.
A few years ago I had written about Guillermo Luijk’s technique to remove completely noise from digital photos. We know that this is a difficult task, but his solution is relatively simple: Shot the scene in a correct exposure according to our usual workflow; Repeat the shot now reducing shutter speed by 4 f-stops that…
I don’t know why but this video clip attracts me strangely. Even if I don’t understand all the advanced notions that are evocated quickly one after the other, (I am not really up-to-date despite all my efforts to understand some of it), I bow in front of the enormous work to adapt Queen’s music (Bohemian…
30 years ago, on May 28, 1983, in the middle of a tennis match between John McEnroe and Drew Gitlin, the public suddenly started to applaud with no apparent reason. The first US space shuttle, Enterprise, was flying over the Roland Garros stadium during an in-flight demonstration for the Bourget air show. Even McEnroe did…