The Hardest Naturally Occurring Substance on Earth


Yep - You all know from grammar school that is the diamond, which incidentally is what is used to make the stylus of our turntable cartridges.  If it is so hard, and it is going up against some fairly soft vinyl, why do we worry about poor quality LPs damaging the cartridge or stylus?  Sure, I understand the cantilever, but the actual Stylus?  The old phrase for me is "Does Not Compute".   What are your thoughts and insights?
pgaulke60

Showing 8 responses by rodman99999

Sphere?    Block?     Never been that normal.      Perhaps: a rhombohedral ellipsoid!
Since sound can't travel in a vacuum; I find the voices in my head reassuring.     Counting them is difficult though, with all those pesky echos.
The space, "found between human ears", is much more confined.     Yes; the vacuous ARE, "an unpleasant experience".