In 78 years, 58 of them since I graduated as an electronics engineer or
68 of them since I built my first crystal set, but having worked on the
chemical side of electronics assembly since 1957, I'm with you all the
way, Bev.
Brian
On 15/01/2011 14:07, Bev Christian wrote:
> Dear Mr. Hillman,
> I was a little taken aback when in an earlier quiz you labeled antimony as a
> metal rather than as a metalloid, but I can live with it, I guess. However,
> for you to call silicon a metal is just too much! In 57 years, 41 of those
> as a chemist (I am counting from when I decided to be one in grade 9), I
> have NEVER before now heard anyone call silicon a metal. As a main group
> chemist (fluorine chemist actually), I consider it a non-metal and am
> willing to concede it is a metalloid, but metal? Never! You are poaching,
> sir. I will stop short of demanding satisfaction. However, I do ask you to
> respond and I also ask fellow TechNetters their opinion on this.
>
> Bev
> RIM
>
> PS For those of you new to TechNet Dave IS a dear friend and this is all
> pretty well tongue in cheek. And seeing this venue is overrun with
> engineers, rather than scientists, I highly expect I am going to be
> out-voted, shot down in flames, made into toast and other alliterations.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
> Sent: Friday, January 14, 2011 4:03 PM
> To: [log in to unmask]
> Subject: [TN] NTC Friday Element Quiz - the Answer
>
> Hi folks - Here is the Friday Element Quiz Answer:
>
> The Question:
>
> The first "pure" use of this element began in 1823. This element is
> sometimes classified as a metalloid. The density of this element increases
>
> when it is melted. The native oxide of this element prevents further
> oxidation of the element below 900C. What element is being described?
>
> The Answer:
> The element is Silicon (Si). Silicon is a metal that enables technology in
> a multitude of ways. Silicon is a deoxidizer in steel production, the
> basis for integrated circuits, glass, cement, protective coatings for high
> temperature applications, and families of polymers. Ge atoms are larger
> than Si atoms so an alloy of 85%Si and 15% Ge has an average interatomic
> spacing slightly larger than pure Si. When a pure layer of Si is deposited
> on the 85/15 alloy, the Si becomes strained resulting in a 70% faster
> signal speed parallel to the surface! Less than 1% of the world's
> production of Si is the pure form but that 1% (approximately 40K
> tons/year) is roughly equal in total dollar value to the other 99% of the
> metallic Si production.
>
>
>
> Lots of good guesses (this was one of the tougher quizzes) - the winner of
> this week's quiz is Bev Christian of RIM. Clumpy have to sneak onto the
> A380 in Germany and head for Canada:
>
> So far Clumpy has:
>
> 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
> - ????
>
> Have a good weekend.
>
> Dave Hillman
> Rockwell Collins
> [log in to unmask]
>
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