How do you make paper torus?
Cut a stack of sticky notes that have adhesive on alternate sides into a circle and fan it to form a torus, as in figure 2.
What is special about a torus?
The torus is the only surface which can be endowed with a metric of vanishing curvature. It is the only parallelizable surface. It is the only surface which can be turned into a topological group.
Is the human body a torus?
Topologically speaking, a human is a torus. Your digestive system is the hole in the doughnut. Interestingly, this means in a two-dimensional world, an organism couldn’t have a similar structure, since the digestive system would completely separate the animal into two halves.
Is torus a 2 dimensional?
Unless I’m very mistaken, the surface of a torus is 2-dimensional, as is the surface of a sphere. The reason being that being on the surface you can only move in 2 dimensions, up or down is not well defined.