You know this modelling of a geometric shape reminded me of school days long ago, we had a Technical Drawing teacher, Mr MacArthur or "Mac-the-knife " as we called him, a slightly built man with a large beard and a ferocious looking wife. He would ask - “What is a polygon?” “An empty parrot cage” we replied. “Oh grow up” he would say, happily that has never happened to me yet. At times he would draw some weird and wonderful shape on the chalk board, (it was in the 60’s) “What shape is that?” he would ask, playfully “tapping” some poor unfortunate boy around the back of the head with his metre long wooden ruler. “A nonagon”, or whatever we would answer, unless we had had too much red meat, in which case we would proffer “A dildodecahedron, Sir”.
“A dildodecahedron, what in God’s name is that?” he would bellow. “T’is the accepted cross-sectional profile of the battery powered ladies humming stick, Sir” we would venture. “A ladies humming stick, what the deuce is that boy?”. “Perhaps you should enquire of Mrs MacArthur, Sir” one brave soul would say. This brought two reactions; the first would be that the nearest boy was cuffed around the ear with the back of his hand, we tried to arrange things so that the same boy always copped it, the one who never got into trouble and least deserved the gratuitous violence. Secondly the pitch of his voice would rise by at least three octaves and would remain like this for 10 minutes or so until normality prevailed.
Sadly we never knew whether he made the enquires of Mrs MacArthur or not, but bearing in mind we never saw him in school with the demeanour and look of someone who had recently had the living crap kicked out of them, we suspected he had not. We tried to imagine the conversation as follows:
Mr. Mac-the-knife: “Well dear , oh lovely tea by the way, some of the boys suggest I ask you the nature and purpose of a ladies humming stick”
Mrs. Mac-the-knife: “What!!! the… bloody…!!!” she begins to turn redder by the second, steam emits from her ears and nose, she begins to assault Mr Mac around the privates with a large ceramic rolling pin, etc. etc.
Oh happy days, and who said Blender was boring.
I almost forgot the rotational angle and therefore the obtuse angle of the sides of said shape is 54.7356 degrees, in case you wondered. The included angle between faces is therefore 125.2644 degrees. Just thought you might like to know this. Cheers. Clock.