How much information do we receive through our eyes?

Summary: Researchers at the University of Pennsylvania School of Medicine estimate that the human retina can transmit visual input at roughly 10 million bits per second, similar to an Ethernet connection.

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Is Earth a torus?

Thereof, what is a 2d torus called? 1D torus is a simple circle, and 2D torus has the shape of a doughnut. The animation below illustrates how a 2D torus is generated from a rectangle by connecting its two pairs of opposite edges. At one dimension, a torus topology is equivalent to a ring interconnect network, of a shape of a circle.

Can you invert a sphere?

In geometry, inversion in a sphere is a transformation of Euclidean space that fixes the points of a sphere while sending the points inside of the sphere to the outside of the sphere, and vice versa. Intuitively, it "swaps the inside and outside" of the sphere while leaving the points on the sphere unchanged. In respect to this, how do you make a torus?

Is torus a solid?

In mathematics, a solid torus is the topological space formed by sweeping a disk around a circle. It is homeomorphic to the Cartesian product S^1 \times D^2 of the disk and the circle, endowed with the product topology. A standard way to visualize a solid torus is as a toroid, embedded in 3-space.