I am interested in adventures for a real-life mathematician. I am looking for simple questions which leads to real problems and sometimes can be only solved numerically or simulated with computers. For example the Fermat-Weber or the Collatz problem. I am using GeoGebra with the JavaScript programming interface to explore dynamic systems. Follow my actual projects on twitter [url]https://twitter.com/mgje[/url] or github [url]https://github.com/mgje[/url]. or [url]http://wiki.geogebra.org/en/GeoGebra_Institute:PHFHNW[/url]