11. When the Universe was at Planck density, it had a cube root of the needed area. 12. The only meaningful solution would be to write out cube root of 4 as a decimal expansion. 13. Normal closure that includes the complex cube roots of unity, and so is not a splitting field. 14. An easy task for the beginner is extracting cube roots from the cubes of 2 digit numbers. 15. In contrast, the physical radius of the body is proportional to the cube root of its volume. 16. There are two steps to extracting the cube root from the cube of a two digit number. 17. In space the size of the fireball would roughly vary with the cube root of the yeild. 18. The rods were used to multiply, divide and even find the square roots and cube roots of numbers. 19. Any field containing two distinct roots of will contain the quotient between two distinct cube roots of unity. 20. The numbers built up from a cube root of unity are now called the ring of Eisenstein integers.
