spinal cord transverse section 3d models

For this and the following scales, the "middle" section was hollowed to reduce the material needed 1:80. 96cm long. Each level is divide in eight parts no larger than 27cm, you need to have a bigger printer, or you could split them by yourself using...

The Pappus graph is named after its discoverer, Pappus of Alexandria, who first described this geometric phenomenon in his treatise on conic sections. This ancient Greek mathematician was renowned for his groundbreaking contributions to mathematics,...

It has a “bulky main section, a smoothly curved cylinder with a mess of silvery ropes trailing behind”. The “petals” can be folded. It is about a kilometre long. It passes through the Saddle Point portals, that are 30 to 50 meters diameter. That’s...