Yesterday I was in Amsterdam to speak at the Kings of code conference. My ambitious goal was to cover the relevant parts of HTML5 and CSS3 for backend developers in 25 minutes and I think I just about managed to reach it. The presentation slides are available here and embedded below (use cursor keys to […]

I am currently at the Mozilla all Hands in San Jose, California and decided to give a talk explaining a lot of open technologies to my colleagues so they can go out to conferences and get people excited about them. We have a lot of people and volunteers, and everybody should feel empowered to speak […]

Yesterday we went to a cool park in Krakow, Poland where they have all kind of physics experiments for kids (and me): One of the things that always fascinated me was the optical illusion of non-concentric circles turning into a 3D cone. Take the following picture: And then rotate it and you see what I […]

Last week I attended the great Creative JavaScript training by Seb Lee Delisle. One of the things we talked about were simple particle systems using canvas with simulated physics. I was pretty blown away to see how easy that is, especially when you fake the physics rather than using the real formulas. One of my […]

Today I spent a thoroughly enjoyable day at Encampment London and held a quick impromptu session on “recording talks on a shoestring”. There weren’t any slides but – to prove my point – I recorded the audio of my presentation and published it on the web: Here are the main things I talked about: You […]