Originally Posted by tessaduck
Whoa! I just checked Wikipedia for tesseract. It exists! It's a really cool geometry concept, and there's even a Heinlein story that predates L'Engle's. Check out the entry
, with it's awesome images and animations.
you reminded me of tesselation quilts. I made one many years ago. I gave it to my brother and sister-in-law and don't have a photo of it. I still want to make another one, maybe someday...
here's a pinterest gallery showcasing some