Bet Ya Didn't Know!

[Lil'Yeshua]

I was wondering why metal processing plants that I delivered concrete to didn't allow ball point pens. Check this out and more!

op:
http://bbs.homeshopmachinist.net/archive/index.php/t-50986.html

 

[SmackDown]

I read an article in Popular Science years ago about when the Lockheed Skunk Works were designing and building the SR-71 Blackbird they found out the had to buy the assemblers different wrenches because titanium doesn't play nice with other metals.


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