[ RadSafe ] WW2 Nuclear Efforts
JPreisig at aol.com
JPreisig at aol.com
Mon Jul 17 20:41:12 CDT 2006
This is from: jpreisig at aol.com.
Greetings from hot and humid New Jersey (USA). Public Television
has shown lately the Copenhagen story --- a discussion between Bohr and
Heisenberg during WWII. The History Channel (USA) has also been
showing some documentaries about the liberation of Heisenberg's
nuclear laboratories at the end of WWII. Apparently, the invading US
forces found Heisenberg's Lab(s) had a fission (Heavy water moderated?)
reactor, complete with tons of elemental Uranium located nearby.
Perhaps, when Heisenberg was being listened to (i.e. bugged) when
he discussed the German "device" effort (in a British farmhouse --- he
talking with his German colleagues), he may have been talking about
the (elemental) mass of Uranium needed to make a German nuclear
device. He suggested that tons of Uranium would be needed to make
a German nuclear device. Not necessarily U-235???
The show about Copenhagen suggested that the USA had working
Cyclotrons (see Kaplan's Nuclear Physics book), but that the German's
few, or no, working cyclotrons. Apparently the German Political
Military) leadership had scared out of Germany many of the necessary
Cyclotron and/or Nuclear Physics researchers. Thus, this all
slowed greatly German efforts to make U-235.
A while ago (on RADSAFE) there was a discussion about hundreds of
pounds of (elemental) Uranium making its way from Germany to
Japan (during WWII). Perhaps the Japanese had a working cyclotron
and/or Calutron to make the necessary U-235, for use in making a
working nuclear device.
So, there you have it, without too much research. I believe
Heisenberg had the theoretical knowledge, (elemental) uranium and a
reactor (to make plutonium???) to support the German war effort.
But, he did not have the American invented cyclotron and/or a
calutron. These would have taken a while to build.
Magnitude 7.7 earthquake in Indonesia today (small by recent
magnitude 8.7 to 9.3 Indonesian earthquakes). A tsunami was
and there was some loss of life. If you are vacationing in
the Ocean water heads out to sea, don't stand around picking up the
that are flopping aroung on the beach. Head Inlands!!!
Regards, Joseph R. (Joe) Preisig, Ph.D.
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