Originally Posted by CdCf
Mohs scale isn't a linear or even exponential scale, however, so the ratio between any two numbers does not allow you to find the ratio between the actual hardnesses. He simply chose ten minerals of increasing hardness, and assigned numbers to them.
Yep, a pretty pathetic scale. Surely there must be something better...
OFF TOPIC BUT HILARIOUS: Here is a quote from Wiki's
hardness page: "For the mathematical concept of the difficulty of proving a conjecture, solving an equation, etc., see computational complexity theory. For water hardness, see hard water. For human hardness, see sex."
This thread is fun.