Dictionary » U » Uranium



(Science: element)A radioactive metallic element whose isotope, uranium-235, is a nuclear fission fuel. Plutonium, another fission fuel, can be produced from the more plentiful isotope uranium-238.

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Re: UV Reflective Staining

Why do you think all "radioative material" fluroesces un UV? Because uranium glows under UV light . And didn't say 'all' - that's your words. I said it could be 'radioactive materials' (of which uranium is one, uranyl acetate is another - both glow under ...

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by JoshuaFlynn
Mon May 07, 2012 11:28 am
Forum: Human Biology
Topic: UV Reflective Staining
Replies: 9
Views: 8957

Possibilities for Alien Life

FYI fusion in the sun does not produce uranium. Apparently it peters out at iron.

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by mith
Wed Nov 25, 2009 7:56 pm
Forum: General Discussion
Topic: Possibilities for Alien Life
Replies: 9
Views: 7427

Re: Bird-Dinosaur News

... is that there is no way to tell if a rock did not have argon (or lead) in it from the beginning of it's formation. Because a rock has lead 206 and uranium 238 in it does not prove the lead is a daughter. It only proves it is there. It also has many other minerals in it. C-14 in "Ancient Rocks" ...

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by AFJ
Wed Jul 08, 2009 2:51 am
Forum: Evolution
Topic: Bird-Dinosaur News
Replies: 46
Views: 59364

Re: Speciation among primates and hominids

... Disclaimer: If you don't have a problem with why C-14 would be in rocks that are "dated," by potassium argon and uranium lead at hundreds of millions of years old..then the first primate is set at 56 million years and the first homo sapien at 500,000 to 1million ...

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by AFJ
Sat Jul 04, 2009 2:01 am
Forum: Evolution
Topic: Speciation among primates and hominids
Replies: 13
Views: 14917

Re: Radiometric dating of rocks

ok, but what if the uranium somehow gets messed up? Well, how could this occur? It would take extreme pressures and high temps for this to happen, in which case your sample such as an arrow head would not be an arrow head any longer ...

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by MichaelXY
Wed Jun 03, 2009 8:15 am
Forum: General Discussion
Topic: Radiometric dating of rocks
Replies: 2
Views: 5807
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