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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
rodman99999
6,127 posts
 
Fiction? George Orwell’s, "Big Brother" isn’t far off:   https://www.usnews.com/opinion/articles/2016-06-22/google-is-the-worlds-biggest-censor-and-its-power-must-be-regulated     and: https://www.searchenginewatch.com/2016/07/29/googles-power-of-censorship-who-controls-the-controllers-of-the-internet/      Or (a more current article): Big Sister, perhaps?     https://www.macleans.ca/society/technology/amazon-alexa-google-home-privacy-surveillance/
rodman99999
6,127 posts
 
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.
nandric's avatar
nandric
4,086 posts
 
geoffkait, ''ability to hear when the stylus is worn?'' There are many
who are not able to see if the stylus is worn even with their new
(expensive) microscoope. I always asked Axel and he always
advised an new one (grin). 
geoffkait's avatar
geoffkait
23,365 posts
 
Rodman“Counting them is difficult though, with all those pesky echos.“

>>>>>I’m not 100% but you can’t have echos in a sphere. But you can have echos in a block.
rodman99999
6,127 posts
 
Sphere?    Block?     Never been that normal.      Perhaps: a rhombohedral ellipsoid!
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