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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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#1
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Depleted uranium is destroying life
"pyotr filipivich" wrote in message ... Gray Guest on Wed, 28 Sep 2011 22:27:44 +0000 (UTC) typed in misc.survivalism the following: "Leroy N. Soetoro" wrote in : Yet when we attacked Iraq in 2003, we dropped between 1000 to 2000 tons of depleted uranium, a known Weapon of Mass Nuclear Destruction in a three-week period. This is a war crime unto itself. Err, umm, BULL****. Egad, but that is hysterically funny. I mean, they have no clue as to what deleted uranium even is, but they know that Uranium is involved in atomic bombs somehow, so it must be the only way it is used. Like the idiots who freak out when you tell them that di-hydrogen monoxide has proved lethal. Or cry when they learn that computers are made by melting down silicon crystals, killing the little crystals. I'm sorry, but the idiot who wrote that, has absolutely no understanding of chemistry, physics, or reality. Must be a post-Doc candidate in Victim Studies. Too much time in college has made them gullible and stupid. -- pyotr filipivich Sounds like it was written by a personal injury lawyer, call 1-800....... get millions. Let the class action begin. Best Regards Tom. http://fija.org/ |
#2
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Depleted uranium is destroying life
Actually, DU is half as radioactive as natural uranium.
I have a uranium bowl, By The Way. i On 2011-09-29, azotic wrote: "pyotr filipivich" wrote in message ... Gray Guest on Wed, 28 Sep 2011 22:27:44 +0000 (UTC) typed in misc.survivalism the following: "Leroy N. Soetoro" wrote in 1: Yet when we attacked Iraq in 2003, we dropped between 1000 to 2000 tons of depleted uranium, a known Weapon of Mass Nuclear Destruction in a three-week period. This is a war crime unto itself. Err, umm, BULL****. Egad, but that is hysterically funny. I mean, they have no clue as to what deleted uranium even is, but they know that Uranium is involved in atomic bombs somehow, so it must be the only way it is used. Like the idiots who freak out when you tell them that di-hydrogen monoxide has proved lethal. Or cry when they learn that computers are made by melting down silicon crystals, killing the little crystals. I'm sorry, but the idiot who wrote that, has absolutely no understanding of chemistry, physics, or reality. Must be a post-Doc candidate in Victim Studies. Too much time in college has made them gullible and stupid. Sounds like it was written by a personal injury lawyer, call 1-800....... get millions. Let the class action begin. Best Regards Tom. http://fija.org/ |
#3
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Depleted uranium is destroying life
"Ignoramus8377" wrote in message ... Actually, DU is half as radioactive as natural uranium. I have a uranium bowl, By The Way. i Uranium 238 in ceramic glaze is not a big deal. I also own a few pieces of uranium and thorium-doped optical glass. However, fine particles of uranium or uranium oxide inhaled in the lungs are another mattter. It is true the body gets rid of most of it, but some sticks around. One of the desireable properties of a DU projectile is that is does not splatter into big pieces. Instead, as it penetrates, the outer layers turn to dust allowing the core to penetrate deeper. No other material works as well for penetrating armor. However, I would not want to be anywhere downwind of an A-10 strafing run. |
#4
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Depleted uranium is destroying life
On 2011-09-29, anorton wrote:
"Ignoramus8377" wrote in message ... Actually, DU is half as radioactive as natural uranium. I have a uranium bowl, By The Way. i Uranium 238 in ceramic glaze is not a big deal. I also own a few pieces of uranium and thorium-doped optical glass. I also have some pretty warm minerals (all 100% legal to own, per NRC). However, fine particles of uranium or uranium oxide inhaled in the lungs are another mattter. It is true the body gets rid of most of it, but some sticks around. One of the desireable properties of a DU projectile is that is does not splatter into big pieces. Instead, as it penetrates, the outer layers turn to dust allowing the core to penetrate deeper. No other material works as well for penetrating armor. However, I would not want to be anywhere downwind of an A-10 strafing run. Neither would I. Uranium emits alpha radiation. Alpha rays can be stopped by toilet paper, clothes, etc. However, if a hot alpha emitting dust particle ends up inside he body (say lungs), it can cause cancer. i |
#5
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Depleted uranium is destroying life
"Ignoramus8377" wrote in message ... ... Uranium emits alpha radiation. Alpha rays can be stopped by toilet paper, clothes, etc. However, if a hot alpha emitting dust particle ends up inside he body (say lungs), it can cause cancer. i That appears to be more theoretical than real. Studies of humans accidentally exposed to low levels don't prove a large increase in cancers or even a significantly shorter lifespan. Radiation mainly kills cells, which is why it's used to cure cancer. http://www.nlm.nih.gov/medlineplus/r...ontherapy.html There's a debate whether the effects of high exposure extrapolate to low levels, or the body can tolerate and repair a small dose. http://www.cancer.gov/cancertopics/factsheet/Risk/radon http://www.physics.isu.edu/radinf/natural.htm http://en.wikipedia.org/wiki/Potassium-40 "An adult human body contains about 160 grams of potassium, hence about 0.000117 x 160 = 0.0187 grams of 40K; whose decay produces about 5,000 disintegrations per second continuously throughout the life of the body." The fact that the debate occurs shows that the evidence is inconclusive. We have a tolerance level for carbon monoxide, sharp objects, broken bones and water though overexposure can be fatal. jsw |
#6
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Depleted uranium is destroying life
On 2011-09-29, Jim Wilkins wrote:
"Ignoramus8377" wrote in message ... ... Uranium emits alpha radiation. Alpha rays can be stopped by toilet paper, clothes, etc. However, if a hot alpha emitting dust particle ends up inside he body (say lungs), it can cause cancer. i That appears to be more theoretical than real. Studies of humans accidentally exposed to low levels don't prove a large increase in cancers or even a significantly shorter lifespan. Radiation mainly kills cells, which is why it's used to cure cancer. http://www.nlm.nih.gov/medlineplus/r...ontherapy.html There's a debate whether the effects of high exposure extrapolate to low levels, or the body can tolerate and repair a small dose. http://www.cancer.gov/cancertopics/factsheet/Risk/radon http://www.physics.isu.edu/radinf/natural.htm http://en.wikipedia.org/wiki/Potassium-40 "An adult human body contains about 160 grams of potassium, hence about 0.000117 x 160 = 0.0187 grams of 40K; whose decay produces about 5,000 disintegrations per second continuously throughout the life of the body." The fact that the debate occurs shows that the evidence is inconclusive. We have a tolerance level for carbon monoxide, sharp objects, broken bones and water though overexposure can be fatal. jsw I actually agree with it, except that it applies to external ionizing radiation, and not to radiactive particles inside the body. i |
#7
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Depleted uranium is destroying life
On 9/28/2011 6:46 PM, azotic wrote:
"pyotr filipivich" wrote in message ... Gray Guest on Wed, 28 Sep 2011 22:27:44 +0000 (UTC) typed in misc.survivalism the following: "Leroy N. Soetoro" wrote in : Yet when we attacked Iraq in 2003, we dropped between 1000 to 2000 tons of depleted uranium, a known Weapon of Mass Nuclear Destruction in a three-week period. This is a war crime unto itself. Err, umm, BULL****. Egad, but that is hysterically funny. I mean, they have no clue as to what deleted uranium even is, but they know that Uranium is involved in atomic bombs somehow, so it must be the only way it is used. Like the idiots who freak out when you tell them that di-hydrogen monoxide has proved lethal. Or cry when they learn that computers are made by melting down silicon crystals, killing the little crystals. I'm sorry, but the idiot who wrote that, has absolutely no understanding of chemistry, physics, or reality. Must be a post-Doc candidate in Victim Studies. Too much time in college has made them gullible and stupid. -- pyotr filipivich Sounds like it was written by a personal injury lawyer, call 1-800....... get millions. Let the class action begin. Best Regards Tom. http://fija.org/ a long time ago, a major commercial transport airplane then in production used depleted uranium counterweights - we kept the test article in a paint can - there is some issue with the dust from those shells, I believe the metallic dust is toxic, however the article is about 98.974% nonsense, I agree. |
#8
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Depleted uranium is destroying life
"Bill" wrote in message ... On 9/28/2011 6:46 PM, azotic wrote: "pyotr filipivich" wrote in message ... Gray Guest on Wed, 28 Sep 2011 22:27:44 +0000 (UTC) typed in misc.survivalism the following: "Leroy N. Soetoro" wrote in : Yet when we attacked Iraq in 2003, we dropped between 1000 to 2000 tons of depleted uranium, a known Weapon of Mass Nuclear Destruction in a three-week period. This is a war crime unto itself. Err, umm, BULL****. Egad, but that is hysterically funny. I mean, they have no clue as to what deleted uranium even is, but they know that Uranium is involved in atomic bombs somehow, so it must be the only way it is used. Like the idiots who freak out when you tell them that di-hydrogen monoxide has proved lethal. Or cry when they learn that computers are made by melting down silicon crystals, killing the little crystals. I'm sorry, but the idiot who wrote that, has absolutely no understanding of chemistry, physics, or reality. Must be a post-Doc candidate in Victim Studies. Too much time in college has made them gullible and stupid. -- pyotr filipivich Sounds like it was written by a personal injury lawyer, call 1-800....... get millions. Let the class action begin. Best Regards Tom. http://fija.org/ a long time ago, a major commercial transport airplane then in production used depleted uranium counterweights - we kept the test article in a paint can - there is some issue with the dust from those shells, I believe the metallic dust is toxic, however the article is about 98.974% nonsense, I agree. Yep the issue is chemical toxicity. Lots of DU in use in industry. Just like any other toxic material if handeld with proper saftey procedures DU provides many benifits. Best Regards Tom. |
#9
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Depleted uranium is destroying life
"Bill" wrote in message ... .... a long time ago, a major commercial transport airplane then in production used depleted uranium counterweights - we kept the test article in a paint can - there is some issue with the dust from those shells, I believe the metallic dust is toxic, however the article is about 98.974% nonsense, I agree. Many heavy and some light metals are biochemically toxic, especially if they easily substitute for the normal metal in necessary biological processes and then inhibit them. For instance Arsenic mimics Phosphorus and Lead replaces Calcium. http://www.hbci.com/~wenonah/hydro/heavmet.htm Uranium: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819790/ If that's too technical for you, large amounts cause reversible kidney damage. The effects of small amounts aren't strong or obvious enough to stand out clearly from from other stress factors. The author argues that low level exposure is similar to Lead. "In the situation of war zones however, other chemical contaminant and the disruption of society would complicate such studies." Plutonium: http://www.world-nuclear.org/info/inf15.html "In the 1940s some 26 workers at US nuclear weapons facilities became contaminated with plutonium. Intensive health checks of these people have revealed no serious consequence and no fatalities that could be attributed to the exposure." A careful study of those who entered Hiroshima soon after the blast showed very little if any long-term effect. Fear-mongering agitators have inflated the risk perception far above that of MORE toxic but familiar hazards like artificial tanning and Botox. When you lie on the beach you expose yourself to the cancer-causing radiation from the nuclear reactor in the sky. My interest isn't political. As a young chemist I found that new employees got the dirty jobs so I studied the hazards. Knowing that Beryllium was toxic got me tossed out of an interview. jsw |
#10
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Depleted uranium is destroying life
Bill on Wed, 28 Sep 2011 21:14:02 -0700
typed in rec.crafts.metalworking the following: a long time ago, a major commercial transport airplane then in production used depleted uranium counterweights - we kept the test article in a paint can - there is some issue with the dust from those shells, I believe the metallic dust is toxic, however the article is about 98.974% nonsense, I agree. The dust is toxic - heavy metal poisoning kind of toxic. But alpha emitters that get "stuck" in the body, either by inhaling or ingesting the dust, are a cause for concern. -- pyotr Go not to the Net for answers, for it will tell you Yes and no. And you are a bloody fool, only an ignorant cretin would even ask the question, forty two, 47, the second door, and how many blonde lawyers does it take to change a lightbulb. |
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