Regular pentagons don’t tessellate – but there are 15 other types of pentagons that do

Posted on 2020/11/08 by Carl Robitaille

Regular pentagons don't tessellate – but there are 15 other types of pentagons that do. We’ve collected all of them at https://t.co/PDYbPhRhMa. Can you fit them together? pic.twitter.com/a7I5Z32des
— Mathigon (@MathigonOrg) November 6, 2020

La vie est plus forte que tout

Posted on 2020/11/08 by Carl Robitaille

Il y a rarement de lettres d’opinion de ministres et encore moins souvent d’un premier ministre. Mais, ce matin, le pm ⁦⁦@francoislegault⁩ nous écrit de garder espoir en regardant rire nos enfants tout en étant sensible à ceux qu’on sent fragiles https://t.co/rjcIaALPBY
— Luc Godbout (@Luc_Godbout) November 7, 2020

Tracing segment between two points rotating around 2 ellipses

Posted on 2020/11/08 by Carl Robitaille

Trying to distract myself from the impending news, here's some more orbit playing. This time tracing segment between two points rotating around 2 ellipses, some of which are offset from each other. Some really interesting results 😊 #GeogebraArt #geogebra @geogebra pic.twitter.com/iC0RFUerSn
— ArtyFee (@fionajw) October 31, 2020

The Most Deadly Job in America — And What Happens Next

Posted on 2020/11/08 by Carl Robitaille

Grandpa’s Laptop

Posted on 2020/11/08 by Carl Robitaille

https://twitter.com/nixcraft/status/1324796156644331521?s=20

Cultural Regions of the United States

Posted on 2020/11/08 by Carl Robitaille

Yet another map exploring the “Cultural Regions” of the United States. I love these maps and the discussions around them. Shows how blurry cultural boundaries really are. Source: https://t.co/ozBu8m2PC8 pic.twitter.com/D1IHNscHYi
— Simon Kuestenmacher (@simongerman600) June 23, 2019

Extraordinary sunrise today in London

Posted on 2020/11/08 by Carl Robitaille

Extraordinary sunrise today in London. pic.twitter.com/6IGbFE05nO
— Adam Samson (@adamsamson) November 6, 2020

Setting up a treadmill

Posted on 2020/11/08 by Carl Robitaille

https://twitter.com/AwardsDarwin/status/1324750945176199173?s=20

How Smooth is a Neutron Star?

Posted on 2020/11/08 by Carl Robitaille

The scp protocol considered as outdated by the OpenSSH project

Posted on 2020/11/08 by Carl Robitaille

Did you know? The scp protocol (hence scp command on your Linux/macOS/Unix/*BSD) consider as outdated by the OpenSSH project. They recommend using rsync or sftp over scp. https://t.co/WetlnSQS10 However, scp so handy. Well moving to rsync is not that hard 😉 What do you think? pic.twitter.com/LkVoc5LvXp
— nixCraft 🐧 (@nixcraft) June 22, 2020

Blog.CarlRobitaille.org

Indiscriminate laziness

Regular pentagons don’t tessellate – but there are 15 other types of pentagons that do

La vie est plus forte que tout

Tracing segment between two points rotating around 2 ellipses

The Most Deadly Job in America — And What Happens Next

Grandpa’s Laptop

Cultural Regions of the United States

Extraordinary sunrise today in London

Setting up a treadmill

How Smooth is a Neutron Star?

The scp protocol considered as outdated by the OpenSSH project