How come I don't see any activity on this list?

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1 total messages Started by Mark Joe Wed, 20 Apr 1994 22:47

#1563

Author: Mark Joe
Date: Wed, 20 Apr 1994 22:47

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Is everybody on vacation or something? How come I haven't received a single
mmail from this list since 3 weeks. Was I removed from the list without being
notified, or is everybody bored and has nothing to say???

Anyways, I mailed out a challenge not too long ago about hte spinning of the
various lengthed PVC pipes. If I was removed from the list, was there any
discussion about it that I missed?

Today, I was trying to find out something with the sequence of radioactive
decay, but when I tried to find out about the 4th sequence that Curie
discovered, it was not in the text book. Can anyone tell me or briefly explain
the fourth sequence? The following is the first three, but what was the fourth?

1)  238 U  -\ 206 Pb
     92    -/  86

2)  232 Th -\ 208 Pb
     90    -/  82

3)  235 U -\ 207 Pb
     90   -/  82

4)  ???????????????


Does anyone know what I am talking about?
Your reply will be appreciated.

Mark
CHI(College Honors Involvement)
Email: CHI@vms2.macc.wisc.edu
BITNET: CHI@WISCMACC.BITNET

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