Each particle, or corpuscle, of earth is a cube (six-sided geometrical solid).
This is what earth particles look like, according to Plato’s description
in the *Timaeus*. In the center is the earth-particle Plato describes
at 55b-c, with 4 isosceles triangles making up each square face of the cube.
On the left is a simpler “isotope” with 2 isosceles triangles per face;
on the right is a more complex “isotope” with 8 isosceles triangles per face.

Image taken from Friedländer, *Plato*, vol. 1, *An
Introduction*.

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*Timaeus* lecture.

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Copyright © 2002, S. Marc Cohen