Discussion
A cube of side 1 cm cut into cubes of side 1 nm yields how many cubes?
Answer: A
Correct answer: 10^21
A centimetre is \( 10^7 \) nanometres, so the cube divides into \( 10^7 \) along each edge and \[ (10^7)^3 = 10^{21} \] cubes in all. The total surface area rises from 6 cm² to 6000 m², roughly the area of a football pitch, from a single cubic centimetre of material.
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