To use this oil lamp, you'll need:
A wick - I used cotton string about 1/8" thick.
A wick holder - I used a 6-32 stainless T-nut that I got at an Ace Hardware for $.74. Anything will work that is clean metal, about 1/8" diameter inside and 3/16" diameter outside, with a flange.
Fuel - I used olive oil, any vegetable oil will do.
I made an Instructable with more details.
Another projection of the 4-dimensional hypercube, this one close to vertex-centered. I love the shape of its hull: almost a rhombic dodecahedron, but skewed just enough to keep the central vertices from meeting.
The more usual projection is here, other polytopes are here.
There are six regular convex polytopes in 4D, which are analogous to
the five Platonic solids in 3D. This is the fifth, the
hyperdodecahedron, a remarkably beautiful object brought to my
attention by George Hart.
Here it's shown in a Schlegel diagram so you can see all 120
dodecahedral cells, though most are transformed by perspective: in
this projection, the only regular dodecahedra are the biggest one on
the outside and the tiniest one at the center.
I designed this with the plan of placing a 3/8" ball bearing in its center. This should be easy in a flexible material; it wasn't so easy in steel. But now that I see it, I'm not sure the center isn't better left open...your call to make.
I'm a designer for 3D printing, here are some sculptures and math models. In sizes from jewelry to handheld sculpture, they're a mix of geometry, computation and hand drawing.
Some are exclusive to Shapeways, others are also on my main site at http://bathsheba.com.
Thanks for visiting! These are my happy places, I hope you like them too.