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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Bowling Ball Cannon
http://dallas.craigslist.org/dal/bar/2044707861.html
He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? |
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