Sorry,
I meant to address Werner, not Inge. :-)
Doug Erb
ダグ・アブ
Senior FAE
Hirose USA
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Douglas Erb
Sent: Friday, May 15, 2009 3:02 PM
To: [log in to unmask]
Subject: Re: [TN] NTC - Friday Trivia Question
Leif and Inge,
I'll have to disagree with Inge on one aspect; very few connectors these days still use BeCu. It is very expensive and difficult to work with. The contact alloy is more likely a CuNiSn, or similar. LCP is very common in small connectors and valued for its high temperature characteristics and resistance to warpage in small geometries. It is a bit temperamental if there are uneven wall thicknesses.
Leif, if you can tell me the connector mfr and part number I might be able to do some investigation for you and give you hints
Doug Erb
Senior FAE
Hirose USA
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
Sent: Friday, May 15, 2009 2:47 PM
To: [log in to unmask]
Subject: Re: [TN] NTC - Friday Trivia Question
Now Dave, you made me curious. I understand the neutron irradiation that
lifted Uranium to another isotop level, but HOW did they determine that they
had a new element? I thought that was what you meant with sampling.
Inge
----- Original Message -----
From: "David D. Hillman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 15, 2009 11:27 PM
Subject: Re: [TN] NTC - Friday Trivia Question
TechNet is such a cool tool - ask a question and get an answer!
Thanks Karen!
Dave
Karen Tellefsen <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
05/15/2009 04:24 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
Karen Tellefsen <[log in to unmask]>
To
[log in to unmask]
cc
Subject
Re: [TN] NTC - Friday Trivia Question
The airplane was a drone; no folks on the plane..
http://www.britannica.com/EBchecked/topic/181416/einsteinium
Karen Tellefsen - Electrical Testing
[log in to unmask]
908-791-3069
Hi Inge - the simplest explanation is that the bomb went boom, a
tremendous amount of energy events at the atomic level began to occur and
the U238 bomb jacket was subjected to transformation by neutron capture.
Any explanation beyond that means I have to open up a few text books and
do some reading! My curiosity is for the folks on the airplane conducting
the air sampling - just what were the health effects of that exposure!
Dave
Inge <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
05/15/2009 03:36 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
Inge <[log in to unmask]>
To
[log in to unmask]
cc
Subject
Re: [TN] NTC - Friday Trivia Question
I try to figure out by thinking only, but it's Friday, and I've visited a
2
hs synt concert with Jean.Michel Jarre, and am exhausted. Jarre uses lots
of
lasers in his shows. Laser..hm...photons... exitation...gamma
radiation....hydrogen bomb..hmm...Einsteinium must have higher energy
than
Uranium when electrons fall back to origin place in the orbit after a
high
energetic bombardment......so they must have used ionized Uranium that was
bombarded with gamma that lifted electrons to higher orbit , then
accelerated these ions through a magnetic field and registered a energy
count higher than what had been seen before...I give up. Dave, you got to
tell us. I make things more complicated than what's needed. I'm sure
you'll
tell us about a simpler way. Hmm...I don't remember the deterioration of
Einsteinium...guess it starts fall apart very rapidly. Does it have
anything
to do with Geiger-Muller detecting? Hmmmmmmmmm...now wait a little. I'm a
stupid. They must simply have decided the density! But could they...the
new
element had short life..OK...I come no closer..
May someone else crack the nut. Tomorrow I'll have a look in my old books
of
Physics..
Inge
----- Original Message -----
From: "Inge" <[log in to unmask]>
To: "TechNet E-Mail Forum" <[log in to unmask]>;
<[log in to unmask]>
Sent: Friday, May 15, 2009 8:45 PM
Subject: Re: [TN] NTC - Friday Trivia Question
> Dave,you asked for the sampling method. Well, in my opinion you need use
a
> 'balance' that can react on single atoms. Sounds as some kind of mass
> spectrometer. You have to count less than picograms...hm....femtograms.
> Question is how to decide the correct weight. I'll thinh it over.
> Inge
>
>
> ----- Original Message -----
> From: "David D. Hillman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, May 15, 2009 2:45 PM
> Subject: [TN] NTC - Friday Trivia Question
>
>
>> Hi gang! Ok, its Friday and Doug hasn't arrived in the office for me to
>> harass him yet so here is our "Friday Trivia" quiz. Note that since I
am
>> a
>> materials engineer, the questions are going to be material based (duh!)
>> and intended to drive Doug nuts. One rule - the use of Wikipedia as a
>> research tool is prohibited but all other internet sources are open
game:
>>
>> 1) Question Number One:
>> Einsteinium was discovered in 1952. What sampling method was used to
>> discover the element? Bonus points if you can state the location the
>> element was discovered.
>>
>> 2) Question Number Two:
>> Sir Humphry Davy discovered what element in 1808?
>>
>>
>> The "winner" of the Friday trivia quiz is a choice of either a case of
>> Doug's Diet Mountain Dew or a case of Mummy dust.
>>
>> Good luck and happy Friday!
>>
>>
>> Dave Hillman
>> Rockwell Collins
>> [log in to unmask]
>>
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