
Re: How we get a Ellipse from a Conic, and how we get a Oval from Cylinder Sections knifes that are V and asymmetrical V shaped
Posted:
Oct 5, 2017 4:23 PM


On Thursday, October 5, 2017 at 1:11:12 PM UTC7, Dan Christensen wrote: > On Thursday, October 5, 2017 at 12:38:55 PM UTC4, Archimedes Plutonium wrote: > > Alright, if our knife in Conic and Cylinder... > > Archie, for $52.49, you can save yourself all this embarrassment. Order the "Conic Sections Model" made of transparent plastic. See for yourself  no knives or scissors required  that at an ellipse is indeed a conic section. > > http://www.eaieducation.com/Product/520610/Conic_Sections_Model.aspx > > If you can't afford it, maybe we can take up a collection for you.
Maybe Google Sketch would be good for him to play with? It's free: https://www.sketchup.com/
 Jan

