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This vid has been up before but I couldn't find the post and give credit to the OP. Did find the vid though, probably appropriate for this thread I think ;
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Here's the vid ....... check it out ;

https://www.youtube.com/watch?v=39gHw5vbPYU

There is an old short video that TI put out showing an artisan hollow grinding a blade. There are two wheels opposed to each other on some sort of flexible mounting. The blade is inserted...

Go over to Newark, NJ, and countless other cities around the USA and see the shells of the rows of factories with their windows broken or boarded up. Converted to condos or torn down. When the world...