K'NEX Ellipsograph bug

Auteur:Michael Borcherds

K'NEX Ellipsograph

Image from http://tinas-sliderules.me.uk/Slide%20Rules/KNexEllipsograph.JPG" target="_blank" rel="noreferrer">http://tinas-sliderules.me.uk/Slide%20Rules/KNexEllipsograph.JPG

Nieuw didactisch materiaal

Ontdek materiaal

Ontdek onderwerpen