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March 2019

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Subject:
From:
David Hillman <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, David Hillman <[log in to unmask]>
Date:
Fri, 1 Mar 2019 15:46:30 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (163 lines)
The Question:

The isotopes of this element are all radioactive. This element occurs
naturally in the Earth's crust in minute concentrations of about 0.003
parts per trillion so there is approximately 18,000 tonnes at any given
time. One isotope of this element is a radioactive tracer that medical
imaging equipment tracks in the human body. What element is being described?


The Answer:

The element is Technetium (Tc).  Technetium derives its name from the Greek
word "technetos" meaning "artificial". In 1962, technetium-99 was isolated
and identified in pitchblende from the Belgian Congo in extremely small
quantities (about 0.2 ng/kg); there it originates as a spontaneous fission
product of uranium-238. German chemists Noddack, Berg, and Tacke reported
the discovery of element 43 in 1925, and named element 43 masurium (after
Masuria in eastern Prussia. However, no one could independently confirm
their reported discovery.  The discovery of element 43 was finally
confirmed in a 1937 experiment at the University of Palermo in Sicily by
Perrier and Segrè.  The University of Palermo officials wanted them to name
their discovery "panormium", after the Latin name for Palermo, Panormus. In
1947 element 43 was named after the Greek word for "artificial", since it
was the first element to be artificially produced. Older Periodic Tables
can be found which list Ma instead of Tc as element 43 since the discovery
credit was so controversial.


The winner of the quiz is Leland Woodall and he will get the services of Clumpy
& 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
Week 55 Tom Carroll, Boeing
Week 56 Mordechai Kirshenbaum
Week 57 Steve Herring, Pennatronics Corp
Week 58 Leland Woodall
Week 59 Drew Meyer, Benchmark
Week 60 Leland Woodall
Week 61 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
Week 62 Leland Woodall!
Week 63 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
Week 63 Tom Carroll, Boeing
Week 63 Tom Granat
Week 64 George Wenger
Week 65  Frank Kimmey, VeriFone Inc.
Week 66  Jerry Dengler, Pergamon Corp
Week 66  Leland Woodall
Week 67  Eray Canli,  ANDAR Electromechanical Systems
Week 68  James Head
Week 69  Mordechai Kirshenbaum
Week 70 Doug Pauls, Rockwell Collins
Week 71  Eray Canli,  ANDAR Electromechanical Systems
Week 72  Russell Kido, Practical Components
Week 73 Denny Friz
Week 74 Drew Meyer, Benchmark Electronics
Week 74 Leland Woodall
Week 75 Mordechai Kirshenbaum
Week 76 Tom Carroll, Boeing
Week 76 Eray Canli,  ANDAR Electromechanical Systems
Week 77 Drew Meyer, Benchmark Electronics
Week 78 David Bealer, WatchFire Signs
Week 79 Torsten Hagge, Kristronics
Week 80 Russell Kido, Practical Components

Week 83 Russell Kido, Practical Components

Week 84 Tom Granat

Week 85 Leland Woodall


Week 85 Ron Feyereisen, SigmaTron Intl.

- Excellent! Unless the boys are connected at the hip, Leland and I can
share their individual services. Preventive maintenance and ECO
coordinating are always available to help out with!


Week 86 Ron Feyereisen, SigmaTron Intl.

- assisted with ????


Week 87 Steven Herring, Pennatronics Corp

- assisted with ????


Week 88 Leland Woodall

- assisted with ????


I hope everyone has a awesome week!
Dave Hillman
Collins Aerospace
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