Dave,
LP (Long Play) By reducing the grove size, slowing the rotation speed, and increasing the size/diameter of the record more audio could be placed on a single disc.
The new format was also called an album. 78's were often purchased in an album, a book of sleeves each containing one disc. The name was then applied to the LP as it could contain as much audio as the 78 album.
Last piece of obscure I believe that LP's were 12" diameter. 78's also came in this size to allow longer play time. Not so many 12" 78's survive. I'm not sure few were made or they tended to break easier, could be both.
Thanks for the quiz. I have been bombing lately as I watch too busy to participate but watch to learn. Leaned toward Cobalt this time.
Drew
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David Hillman
Sent: Thursday, June 28, 2018 2:45 PM
To: [log in to unmask]
Subject: [TN] Element Quiz Answer
The Question:
This element is a by-product from nickel and copper mining. When this element is exposed to air it forms an extremely toxic and objectionable fume/odor. This element is the least abundant stable element in Earth's crust, with an average mass fraction of 50 parts per trillion in the continental crust. An alloy that includes this element was used for the tips of phonograph styli during the late 78 rpm and early "LP" record days.
Which element is being described?
The Answer:
The element is Osmium (Os)! Osmium's +8 oxidation state is notable for being the highest attained by any chemical element aside from iridium's +9 oxidation state. Osmium derives its name from the Greek word "osme" meaning "a smell", because of the ashy and smoky smell of the volatile osmium tetroxide. Osmium-alloy record needle tips wore out far more rapidly than competing, and costlier, sapphire and diamond tips, so they were discontinued. The most notable application of Os isotopes is in geology in conjunction with the abundance of iridium, to characterize the layer of shocked quartz along the Cretaceous-Paleogene boundary that marks the extinction of the dinosaurs 66 million years ago.
The winner of the quiz is Leland Woodall and will get the services of Clumpy and Kloumpios for the week. Lots of correct responses, Leland was first and beat Scott Decker by only one minute per the firewall clock time stamp.
Apparently many folks still remember what LP records are!
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
- Wow! Simply amazing timing. Our leader will be gone next week so we will be two people doing the work of three. The boys will be greatly appreciated. The good news for them is that we finally have some decent weather here. Will have to get them some time outside to enjoy it!
Week 60 Leland Woodall
- Just in time for Memorial Day! I can see the guys mowing, trimming bushes, cleaning cars, and exercising their grilling skills. I might mix in a little work at the plant next week, just for good measure.
Week 61 Matthias Mansfeld, Mansfeld Elektronik PCB Design and Assembly
- Really great! The boys can help me moving many boxes with old technical journals in a cellar, assist me with learning Altium, they can rescue the frogs which my black tomcat catches nightly as toy and last not least they help me putting antibiotic pills into our red tomcat twice a day (now this is really a quite hard task).
Week 62 Leland Woodall
- assisted with ????
I hope everyone has a awesome week!
Dave Hillman
Rockwell Collins
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