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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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Dave Hinz wrote: On Wed, 20 Apr 2005 14:41:36 -0700, Bob May wrote: What is depleted uranium depleted of? I've always thought that this stuff is the byproducet of the nuke bomb industry where the valuable U-235 is removed from the not valuable U-238 which isn't radioactive. U-238 is radioactive, it has a half-life of 4.5 billion years. I'll also note that granite is radioactive yet we build buildings with it without concern. It's detectable, but that doesn't mean that it's a problem. A chunk of granite is less interesting to a Geiger counter than a smoke detector is. Or flying at 30,000 ft, I believe. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. |
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