Radon

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> On Sep 13, 2019, at 8:54 AM, Torsten Hagge <[log in to unmask]> wrote:
> 
> Thorium ?
> 
> -----Ursprüngliche Nachricht-----
> Von: TechNet [mailto:[log in to unmask]] Im Auftrag von David Hillman
> Gesendet: Freitag, 13. September 2019 14:51
> An: [log in to unmask]
> Betreff: [TN] Element Quiz Question
> 
> Hi folks - here is the Quiz:
> 
> The Question:
> This element is one of only four radioactive elements (along with bismuth,
> protactinium and uranium) that occur in large enough quantities on Earth
> for a standard atomic weight to be determined. Four-fifths of this element
> that was present at Earth's formation has survived to the present. This
> element is extremely radioactive with most of its non-radioactive
> commercial applications being phased out for other materials starting in
> the 1950s. However, many of the Technet community have indirectly
> interacted with this element on family camping trips. What element is being
> described?
> 
> The winner of the quiz 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.
> 
> Week 86 Ron Feyereisen, SigmaTron Intl.
> 
> Week 87 Steven Herring, Pennatronics Corp
> 
> Week 88 Leland Woodall
> 
> Week 89 Tom Carroll, Boeing
> 
> Week 90 Tom Brendlinger
> 
> Week 91 Leland Woodall
> 
> Week 90 David Bealer
> 
> Week 91 Leland Woodall
> 
> Week 92 David Bealer
> 
> Week 93 Leland Woodall
> 
> 
> Week 94 Eray Canli, Nurol BAE Systems
> 
> -  I will appreciate if poor guys can fill time sheets of whole month for
> me. Sorry for such an awful task, didn't choose to be this merciless...
> 
> 
> Week 95 Ravinder Ajmani, Western Digital
> 
> - I have a very hectic schedule next week, as I need to make an inventory
> of all the good measurement probes in my lab.  This will require careful
> examination of each probe tip for any possible damage.  So both Clumpy and
> Kloumpios will be a big help.  They can enjoy the weekend visiting Santa
> Cruz, Monterey, and Carmel.
> 
> 
> Week 96 ????
> 
> - assisted with ????
> 
> 
> I hope everyone has a awesome week!
> Dave Hillman
> Collins Aerospace
> [log in to unmask]