Hi Dave
I picked the boys from Ben Gurion Airport after a 24 hr delay.
I shall let them to overcome the Jet Lag, but tomorrow they are going
to work hard at my labs.
I hope they will enjoy their stay
Mordechai
--------------------------------------------
On Fri, 4/20/18, David Hillman <[log in to unmask]> wrote:
Subject: [TN] Element Quiz Answer
To: [log in to unmask]
Date: Friday, April 20, 2018, 8:55 PM
Here is the Element Quiz Answer:
The Question:
This element is the rarest of all
elements on Earth (less than one ounce
exists on Earth at any given time).
Less than one gram has ever been
produced in a laboratory so the
chemical and physical properties have not
been determined to any great extent.
This element filled the second-to-last
gap in the Periodic Table. A whole host
of folks claimed to have discovered
this element from 1931-1940. This
element has potential medical
applications but its rarity has
inhibited its application. Which element is
being described?
The Answer:
The element is Astatine (As)! Astatine
derives its name from the Greek word
"astatos" which means "unstable".
Astatine comes from the radioactive decay
of uranium ore and its longest isotope
half life is 8 hours so there isn't
much of the element to be found on the
planet. Mendeleev predicted that
astatine existed when he created the
Periodic Table and named it
"eka-iodine". A whole gaggle of folks
"declared" they had discovered
astatine. The first claimed discovery
of eka-iodine was made by Fred
Allison and his associates at the
Alabama Polytechnic Institute (now Auburn
University) in 1931. The discoverers
named element 85 "alabamine", and
assigned it the symbol Ab. Official
discovery credit was assigned to the
team of Corson, MacKenzie, and Emilio
Segrè who isolated the element at the
University of California, Berkeley in
1940. Astatine-211 is the subject of
ongoing research in nuclear medicine.
It must be used quickly as it decays
with a half-life of 7.2 hours; this is
long enough to permit multistep
labeling strategies.
The winner of the quiz is Mordechai
Kirshenbaum and he will get the
services of Clumpy and Kloumpios for
the week.
So far Clumpy and Kloumpios have done
the following:
Past Quiz winners/tasks:
Week 1 Ravinder Ajmani, Western
Digital
Week 1 Ron Feyereisen, SigmaTron Intl.
Week 2 Louis Hart, Compunetics
Week 3 Mark Kostinovsky, Schlumberger
Ltd.
Week 3 John Burke
Week 4 Drew Meyer, Benchmark
Electronics
Week 5 No Winner - no correct
responses!
Week 6 Bhanu Sood, NASA
Week 7 Keith Calhoun, Sopark Corp
Week 7 Ian Fox, Rolls Royce
Week 8 Leland Woodall
Week 8 David Bealer, SMT
Week 9 Tom Carroll, Boeing
Week 10 Louis Hart, Compunetics
Week 11 Tom Carroll, Boeing
Week 11 Scott Decker, UTAS
Week 12 Matthias Mansfeld, Mansfeld
Elektronik PCB Design and Assembly
Week 13 No Quiz,
Week 14 Matthias Mansfeld, Mansfeld
Elektronik PCB Design and Assembly
Week 15 Bhanu Sood, NASA
Week 16 John Maxwell
Week 17 Leland Woodall
Week 18 Leland Woodall
Week 19 Tom Carroll, Boeing
Week 20 Robert Kondner
Week 21 Tom Brendlinger, ClearMotion
Inc.
Week 22 Carl Van Wormer, Cipher
Engineering LCC
Week 23 Juliano Ribeiro, DATACOM
Week 24 Gerry Gagnon, FLIR Commercial
Systems
Week 25 Graham Collins, Sunsel Systems
Week 26 Joyce Koo, IPC International
Week 26 Todd MacFadden, Bose
Week 27 Bhanu Sood, NASA
Week 28 Leland Woodall
Week 29 Mordechai Kirshenbaum
Week 30 Leland Woodall
Week 31 Leland Woodall
Week 32 Steve Gregory
Week 33 Leland Woodall
Week 34 Jerry Dengler, Pergamon Corp
Week 35 Frank Kimmey, VeriFone Inc
Week 36 Graham Collins, Sunsel Systems
Week 37 Richard "Dean" Stadem
Week 38 Leland Woodall
Week 38 Tom Carroll
Week 39 Matthias Mansfeld, Mansfeld
Elektronik PCB Design and Assembly
Week 40 Leland Woodall
Week 41 Tom Carroll
Week 42 Matthias Mansfeld, Mansfeld
Elektronik PCB Design and Assembly
Week 43 Joyce Koo
Week 44 Russell Kido, Practical
Components
Week 45 Leland Woodall
Week 45 Frank Kimmey, VeriFone Inc
Week 46 Ian Fox, Rolls-Royce Control
Systems
Week 47 Fred Cox, Bluering Stencils
Week 48 Tom Carroll, Boeing
Week 49 Todd MacFadden, Bose
Week 49 Leland Woodall
Week 50 Russell Kido, Practical
Components
Week 51 Ravinder Ajmani, Western
Digital
Week 52 Leland Woodall
Week 53 Scott Decker, UTAS
Week 54 Leland Woodall
- We recently bought some new 3D
AOI equipment, and the guys are assisting
me with the disposition of questionable
calls made by our associates. I
should have known they were well-versed
in IPC-A-610 acceptability
criteria. They hadn't made me
aware of this in the past, and then told me
it was because I'd never asked...
Shame on me, right?
Week 55 Tom Carroll, Boeing
- Clumpy and Kloumpios will arrive just
in time to help with some spring
cleaning outside. Can't wait for this
winter to be gone. You are probably
dealing with Winter Storm Xanto right
now, good luck with that. I hope it
misses New York City as it moves east.
Please have them bring the tiller
attachment for their John Deere so they
can easily turn the soil in the
front flower bed. After the boys get
done with the yard work they can relax
on the deck with some nice IPA and go
fishing in the canal out back. I know
they enjoyed that last time they
visited.
Week 56 Mordechai Kirshenbaum
- assisted with ????
I hope everyone has a awesome week!
Dave Hillman
Rockwell Collins
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