Hi folks - Here is the Friday Element Quiz Answer. There will be no quiz

next week due to the IPC APEX Conference:

The Question
This element was first "isolated" in 1828 but largely ignored until the 
early twentieth century. It saw use in the 1930s in fluorescent light 
bulbs but its use stopped in that application when it was discovered
that 
5% of people exposed to the element powder developed a sometimes fatal 
allergic reaction. This element has significant use in X-ray equipment.

Bonus question: The largest forging of this element (in the 1960s) was 
made for a space application. Provide the specific spacecraft name (not 
the space program name.

The Answer:
The element is Beryllium (Be). Be is widely used in the aerospace industry 
as a structural material due to its lightness, stiffness and dimensional 
stability. Until 1957, Be was named Glucinium which means "sweet tasting" 
by French chemist Louis-Nicolas Vauquelin. Be has the highest heat 
capacity per unit mass of all the structural metals giving it outstanding 
heat sink properties. The world Be mine production is less than world 
consumption because Be is assiduously recycled (makes you wonder why Be 
keeps being proposed on environmental banned lists!).

There were no correct answers for the bonus question. The correct answer 
was the Freedom 7 spacecraft (yes, the program was Mercury). The reentry 
heat shield on the Freedom 7 was a Be forging (the largest Be forging ever 
made up to 1961). However, after the Mercury program fights ended, the 
reentry heat shields were redesigned into fiberglass and Al honeycomb 
structures as it was discovered the fiberglass/honeycomb combination was 
more effective at heat dissipation because they ablated during reentry 
carrying away incandescently hot material (and there was a tremendous 
weight saving too).


The quiz winner is Mark Woolley, PTRL Laboratory Avaya,  so Clumpy and 
Kloumpios will be driving from Canada to Westminster CO. Both Clumpy and 
Kloumpios are familiar with Westminster as they have attended the Annual 
Dragonboat Festival on Sloan's lake which is nearby. Don't know how well 
they'll deal with Denver traffic.

So far they have:

Week 1 Lamar Young, SCS Coatings
- accomplished nothing (drank lots of coffee)

Week 2 Bev Christian, RIM
- conducted REACH material testing

Week 3 Drew Meyer, Benchmark Electronics Inc.
- Solderability testing and mowed the lawn

Week 4 Ian Fox, Goodrich
- had an epic journey of travel

Week 4 Gary Ferrari, Garrick Global
- unknown

Week 5 Fredrick Miller, Astrolab
- unknown

Week 6 David Nelson, Raytheon
- Was a tackling dummy for Dallas Cowboys

Week 7 Graham Collins, L3 Communications
- Cleaned gutters and painted window trim

Week 8 Bill Noel, ITT Geospatial Systems Division
- unknown

Week 9 Steve Gregory of RD Circuits
- unknown

Week 10 David Bealer of Watchfire Signs
- descaled the in-line wash machine! Ouch!

Week 11 Dick Krug of Sparton Corporation
- assisted with AS9100 quality management systems requirements audit

Week 12 Steve Creswick of Balanced Enterprise Solutions
- Acted as Steve's "go fer" due to a broken leg!

Week 13 Gebhard Neifer, Delphi
- conducted a plasma pre treatment Taguchi DOE for a sealing process

Week 14 Bev Christian, RIM
- assisted with a tin pest investigation/test

Week 15 Bev Christian, RIM
 - assisted Bev shoveling snow

Week 16 David Bealer of Waatchfire Signs
 - assisted with reflow profiling

Week 17 Brian Ellis, rumored to be retired
 - assisted with rewiring the house, had a tractor accident and found
his cousin Kloumpios

Week 18 Denny Fritz, SAIC
 - assisted with tin whisker inspection/examinations

Week 19 Graham Collins, L3 Communications
- assisted with scraping barnacles, boat paint and boat engine
maintenance

Week 20 Mark Woolley, PTRL Laboratory Avaya
- assisted with ?????????

Hope to see lots of TechNettees at APEX!

Dave Hillman
Rockwell Collins
[log in to unmask]

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