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- Newsgroups: talk.environment
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!CSD-NewsHost!jmc
- From: jmc@SAIL.Stanford.EDU (John McCarthy)
- Subject: Re: Plutinium poisoning: Was Re: Greenpeace: they're not just for...
- In-Reply-To: steinly@topaz.ucsc.edu's message of 17 Dec 92 16:02:37
- Message-ID: <JMC.92Dec17165038@SAIL.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Reply-To: jmc@cs.Stanford.EDU
- Organization: Computer Science Department, Stanford University
- References: <1gqfh7INNhi@usenet.INS.CWRU.Edu> <STEINLY.92Dec17160237@topaz.ucsc.edu>
- Date: 17 Dec 92 16:50:38
- Lines: 54
-
- I would conjecture that our great grandparents also had some plutonium
- in their bodies, although we all have more because of the atmospheric
- bomb tests. Consider that random dirt has several parts per million
- of U-238. Consider that a neutron from cosmic rays absorbed by an
- atom of U-238 will make it U-239, which will rather promptly undergo
- two beta decays to become Pu-239, the very stuff that bombs are made
- of.
-
- Can anyone do the relevant calculations to get an estimate of the
- amount of Pu-239 our grandparents all contained?
-
- The point is that 6 x 10^(23), the number of molecules in a mole,
- is a very large number, so everybody is likely to contain at least
- a few atoms of every element. The classical junior high school way
- of putting it is to say that every breath you take contains on the
- average six molecules that were in the dying breath of Julius Caesar.
-
- I have decided that I have recently been too impatient with
- ill-informed, new people in this newsgroup. One just has to
- face the fact that the same misinformation will recur time
- and again.
-
- However, I wonder if Nicholas E. Damato would inform us of his sources
- for the information that plutonium is the most toxic substance known.
- If there are several sources I'd like to know about all of them. I
- notice that many of the U.P. stories on the Japanese ship contain
- this misinformation in an explanatory clause.
-
- Newswriters are often very badly informed. I remember that A.P. stories
- used to say that the Soviets entered Afghanistan to help the government
- fight the rebels, apparently based on an analogy with the American
- presence in Vietnam. When I protested that A.P. itself had reported
- that the Soviets entered by surprise, killed the Prime Minister, and
- replaced him by someone they brought with them (Babrak Karmal), I
- got a nice letter saying they would fix it. Indeed for more than
- a year the explanatory phrase about the Soviets having entered to
- help the government was replaced by a slightly longer phrase about
- how the Soviets had replaced one Afghan government by another. Later
- they went back to the original phrase, and I didn't bother to write
- another letter.
-
- Anyway explanatory phrases about the background of a news story often
- contain inaccuracies that are repeated in successive stories
- indefinitely.
-
- Anyway, where did Nicholas Damato get the misleading information that
- a single atom of plutonium could cause lung cancer. Actually this is
- not excluded, but one atom of plutonium can produce only a tiny
- fraction of the radioactive events occurring in a person's lung.
- --
- John McCarthy, Computer Science Department, Stanford, CA 94305
- *
- He who refuses to do arithmetic is doomed to talk nonsense.
-
-