There’s much to be said and done about drawing perfect circles. Alexander Overwijk says and does some of it, in this video: Stephen Ornes says lots more, in the essay “Archimedes in the Fence“, in The Last Word on Nothing”.
Banana shape(s) – the math(s)
Have you ever mused upon the question: ‘Is the cross section of a banana an ellipsoid, and if so, can it be used to gauge its volume and surface area? Yes? Then a report in the International Journal of Agricultural Science, Research and Technology (IJASRT) 2011 Vol. 1 No. 1 pp. 1-5, may be of […]
A line of people each trace a line
An experiment by Clement Valla, who drew a line and then had 500 people each attempt, sequentially, to trace the line they saw: Villa did a similar experiment with a circle: [vimeo]19760997[/vimeo]