My name is Leon Geers, I am a maker, tinkerer, programmer, scientist. I get a lot of inspiration from the makers around me and by the beauty of the things they create. By trade I’m a transport physicist with a Master’s degree in Chemical Technology from Delft University of Technology and a PhD-degree (with honours) in Applied Physics from that same university. For those interested, my thesis entitled Multiple Impinging Jet Arrays: An Experimental Study on Flow and Heat Transfer can be downloaded from the repository of Delft University. Currently I work as a Senior Research Scientist at the Netherlands Organization of Applied Scientific Research TNO. A list of my publications can be found on my LinkedIn profile.

Already from a young age I started tinkering with electronics and computers. Starting with the repair of my grandpa’s radio and learning the basics with Phillips electronic building kits, I went on to integrated circuits and Atmel AVR microcontrollers. Computer programming started with Basic on a ZX spectrum 128k and an Atari STfm. Later on I learned to program in Pascal, Fortran, Delphi, C, C++, PHP, and Java, currently I mainly program in Python.

I did so many projects during the years, some failed, some worked, some were useless, some useful, some burnt my fingers, others only my money, but always they were fun. On my site you will find some of the projects I did with an explanation of how I did it. Most of my information I got off the Internet from fellow tinkerers who gladly donated their knowledge to the community. Because I am a firm believer of shared research and open innovation, consider this my contribution to the community. I hope people will enjoy the projects and learn from them, as I have from the projects of others.