Archive For The “3D” Category
Skytopia have a great set of pages on the search for a 3D version of the Mandelbrot Set. Or at least, for an interesting 3D version of the normal Mandelbrot. It’s easy enough to produce fractal solids that have a Mandelbrot on one plane, and if you …
Skytopia have a great set of pages on the search for a 3D version of the Mandelbrot Set. Or at least, for an interesting 3D version of the normal Mandelbrot. It’s easy enough to produce fractal solids that have a Mandelbrot on one plane, and if you …
One of the dafter things they teach in physics classes is that because humans only have two ears, we can only hear location by comparing the loudnesses of a sound in both ears, and that because of this we can only hear “lefty-rightiness”, unless we…
Someone’s finally come up with the “killer application” for VR and computer-augmented reality. It’s buying Lego.You walk into a participating Lego shop, pick up a box of Lego, and walk over to the big screen. A video camera shows you your image. You ho…
Someone’s finally come up with the “killer application” for VR and computer-augmented reality. It’s buying Lego.You walk into a participating Lego shop, pick up a box of Lego, and walk over to the big screen. A video camera shows you your image. You ho…
Mathematicians playing with geometrical solids tend to concentrate on the finite ones. Those provide a nice satisfying sense of closure, and they’re cheaper to build with straws and pipecleaners than the infinite ones.
This is an interesting shape that doesn’t fall into that category. It’s a simple rigid stack of tetrahedra that generates a “column” with a triple-helix. The odd thing is, you’d expect an architect somewhere to have already used this on a structure somewhere … but I don’t recall ever seeing it.
Maybe I missed it.
The sequence rotates through [~]120 degrees and [nearly] maps onto itself every nine tetrahedra (that is, the tenth [nearly] aligns with the first). If you want to follow one of the spiral arms through a complete [~]360-degree revolution, that takes 9×3=27 tetrahedra, (#28 corresponds to #1) .
Oh, and it has a hole running right down the middle.
I’ll try to upload some more images in another post.
