Johan’s Promo Short promo video about where I grew up and what I have been up to. I made this promo reusing video fragments from my dad.
Johan’s Applied Math projects Math inspired projects that I built using Arduino or a Field Programmable Logic Array.
Johan’s Theoretical Math The intersection of calculus and electric circuits is intriguing
Johan’s Music I enjoy playing clarinet, and just started playing alto sax
Johan’s Art Examples of my recent art projects
Countdown Countdown to Christmas animation that I wrote in NodeJS
Mandelbrot Mandelbrot calculations that I wrote in NodeJS
Pitch Detection on Arduino using Autocorrelation A device that recognizes the notes played on a musical instrument. 1st place in the Silicon Valley science competition. 
Building Math Hardware This article shows some implementation of the math operations introduced in chapter 7 of the inquiry "How do computers do Math?" The combinational logic is described in the HDL Verilog 2001.
Johan’s Software A showcase of some of my software endeavors
Johan’s Science My ambition is to solve real problems using math and science.
Flight Inquiry Inquiry into flight. Video presentation from our school project. 
Land veroverd op de zee How the Dutch make land from water. Filmed on location in the Netherlands.