Inspired by some Easter math connections people posted, especially this nice egg tangram from Curiosa Mathematica, and those fantastic Pysanka eggs.
I got wondering about how you would model egg shapes.
Here’s three approaches. Which one is the eggiest? Do you have other ideas?
I think this finishes my egg obsession. The sketch is on GeoGebraTube if you want to play.
EDIT: Christian Perfect tweeted along this egg curve corcucopia in response. Check out that gardener’s construction!
EDIT2: added the gardener’s construction
Imgur sources: A is above, but there are two more: B, C. Warning: puerile, vulgar and misogynist comments abound on imgur. Be careful what you click and read.
Funny to see these in this format, but it loses none of its potency.
On youtube: all three are from this video on lack of conservation. Obviously better in video! This related video has more of the interviews.
Saw these on imgur of all places. I’m a little loathe to link directly to imgur, because it’s so hard to avoid puerile comments or reactions. So click only if you’re not faint of heart. This link goes directly to the gallery, so pretty safe; the OP has a great narrative of their process. The art form is a traditional Ukranian folk art. Gorgeous.
I seems to be on a bit of an egg kick. The egg tangram got me messing about with egg shapes in GeoGebra. Such a fundamental shape and so hard to describe.
Folding an ellipse.
Inspired by mathani’s nice gif this morning, I had to try in GeoGebra. Pretty happy with the result, and the marking button was a good thing to figure out, I think. It’s on GeoGebraTube for you to play with.
Get you best paper, cut a circle and fold it, fold it so that the circumference falls on a fixed point inside. Repeat, using random folds. Now see the creases. This is how you paper-fold an ellipse.
I’ve got the folding circle part in GGB, but hard to capture the idea of marking the folds. Any ideas?
Made and shared by @RodBogart. Just wonderful.
Ladder of Learning.
Had to make an image for this great quote on learning. Saw it at Made by Jones. I think so much bad education policy comes from mandating that everyone has the ladder that you like best.