About me

  • I was born on 1974, in Spain, and have lived there most of my life, except for five wonderful years in Germany and several stays abroad.
  • I have studied Physics, did the Ph.D on that and have since worked as researcher in several institutions.
  • I now live in Madrid and work at the Spanish Research Council.
  • Programming has alwas been a passion. I have worked on multiple projects, all of them related to free software.
  • Hobbies: playing the guitar, sports, reading, languages and travelling.


  • Do no take this seriously. It is just a space to collect information, texts, photos and other stuff that me or somebody else might find useful.
  • Everything that I write here reflects my own personal opinion or experiences and is in no way endorsed by my employer or colleagues that might be mentioned in this blog.
  • All the information provided here comes without any kind of warranty. Use it judiciously and critically.

Recent programming items

  • Ussing Cygwin's ssh-agent in Windows When you want to log in to a Unix machine or some other kind of server, one of the favourite protocols is SSH. In public key authentication, you can generate ...
    Posted Oct 9, 2016, 3:40 AM by Juan Jose Garcia-Ripoll
  • Hacking BibTeX I needed to use the Cambridge LaTeX style for books, which is very pretty and compact, but I wanted to produce PDF's where clicking on the title of articles ...
    Posted Sep 12, 2016, 6:52 AM by Juan Jose Garcia-Ripoll
  • Extracting images from PDFs with Inkscape My work as a scientist and also as an occasional outreach communicator has put me in a situation where I need to extract graphical material from publications and other documents ...
    Posted Aug 30, 2016, 3:55 AM by Juan Jose Garcia-Ripoll
Showing posts 1 - 3 of 21. View more »

Recent musings

  • About the difficulty of portraits It has always puzzled me the difficulty of drawing faces. This difficulty lays on two fronts: It lays on the draftsman. The person drawing is affected by serious psicological constraints ...
    Posted Sep 15, 2015, 1:01 AM by Juan Jose Garcia-Ripoll
  • La Residencia de Estudiantes If you visit our research group at the Spanish Research Council campus in Serrano Street, you will visit also a place with a rather old history of struggles to foster ...
    Posted Aug 17, 2015, 1:12 AM by Juan Jose Garcia-Ripoll
  • Spanish vintage flex pen? I found this little gem of a vintage pen that needs some restoration work. The pen is probably made of celluloid, it is a self-filler and needs a new ...
    Posted Aug 16, 2015, 8:15 AM by Juan Jose Garcia-Ripoll
  • Frankenpen: Camlin Rego + Gillot 303 Today was a day for experimentation and I tried both something stupid and amazing. Inspired by this video, I searched among the least used pens that I had and among ...
    Posted Aug 16, 2015, 8:02 AM by Juan Jose Garcia-Ripoll
  • Testing fountain pens for tone & value creation In my struggle of learning how to properly draw with pen and ink, I keep looking for the right tools and the right methods, which is kind of hard when ...
    Posted Aug 10, 2015, 11:02 AM by Juan Jose Garcia-Ripoll
Showing posts 1 - 5 of 9. View more »