Very, very neat, and a testament to the 'that's neat' way of doing science. I also love that the device has an innate 'periodicity' of movement. Somewhat reminiscent of the Strandbeest concept (also by a Dutch gentleman Theo Jansen).
Strandbeest is one of the coolest things ive seen in real life. For the people not knowing about it, Veritasium actually made a video about it https://www.youtube.com/watch?v=IFaAjR_RRJs.
