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Author Topic: Of Tin Whiskers and Lead  (Read 763 times)

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Offline Sandwich

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Of Tin Whiskers and Lead
on: January 08, 2005, 05:02:13 am
http://www.fortune.com/fortune/thisjustin/0,15704,1012859,00.html?cnn=yes

[q]Tin Whiskers: The Next Y2K Problem?
Engineers are racing to avert what could become a plague of short circuits in electrical and electronic devices.

In the cold vacuum of space, on a gleaming metal surface inside the Galaxy 4 communications satellite, tiny whiskers of tin grew in perfect stealth—until May 19, 1998, that is. That's when at least one of those whiskers bridged a pair of metal contacts in the satellite's control processor. The short circuit killed the satellite. Some 40 million pagers stopped working all over the country. Millions of dollars' worth of ATM and credit card transactions were interrupted. The $250 million satellite became, in the words of NASA engineer Henning Leidecker, "a doorstop in space."

...
[/q]
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"...The quintessential quality of our age is that of dreams coming true. Just think of it. For centuries we have dreamt of flying; recently we made that come true: we have always hankered for speed; now we have speeds greater than we can stand: we wanted to speak to far parts of the Earth; we can: we wanted to explore the sea bottom; we have: and so  on, and so on: and, too, we wanted the power to smash our enemies utterly; we have it. If we had truly wanted peace, we should have had that as well. But true peace has never been one of the genuine dreams - we have got little further than preaching against war in order to appease our consciences. The truly wishful dreams, the many-minded dreams are now irresistible - they become facts." - 'The Outward Urge' by John Wyndham

"The very essence of tolerance rests on the fact that we have to be intolerant of intolerance. Stretching right back to Kant, through the Frankfurt School and up to today, liberalism means that we can do anything we like as long as we don't hurt others. This means that if we are tolerant of others' intolerance - especially when that intolerance is a call for genocide - then all we are doing is allowing that intolerance to flourish, and allowing the violence that will spring from that intolerance to continue unabated." - Bren Carlill
 

Offline Nico

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Of Tin Whiskers and Lead
Reply #1 on: January 08, 2005, 06:34:16 am
whiskers? isn't that cat ... nose hair?
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Offline beatspete

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Of Tin Whiskers and Lead
Reply #2 on: January 08, 2005, 06:53:15 am
Yeah, but you could use it as a general description for groups of thin strands coming out of a surface.

So this is happening to a lot of satellites?

"Your cynicism appauls me Collosus - I have ten thousand officers and crew willing to die for pants !"

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Offline vyper

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Of Tin Whiskers and Lead
Reply #3 on: January 08, 2005, 07:24:43 am
How?!
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Offline SKYNET-011

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Of Tin Whiskers and Lead
Reply #4 on: January 08, 2005, 10:42:11 am
Chemistry? Tin particles in space?
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Offline Kazan

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Of Tin Whiskers and Lead
Reply #5 on: January 08, 2005, 11:10:48 am
simple chemistry


i remember when the Gal4 went down, i had a pager and it's service was interrupted

//edit

during a meteorological emergency no less
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Offline Lynx

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Of Tin Whiskers and Lead
Reply #6 on: January 08, 2005, 11:24:17 am
Quote
Originally posted by SKYNET-011
Chemistry?


I rather think it's because of the reduced gravity and low temeperatures myself.
Give a man fire and he'll be warm for a day, but set fire to him and he'll be warm for the rest of his life.
 

Offline Sandwich

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Of Tin Whiskers and Lead
Reply #7 on: January 08, 2005, 04:26:01 pm
Quote
The phrase "tin whiskers" is pretty darned descriptive. Under just the right lighting, if you look at a metal surface with whiskers, it sparkles. No one can tell you the specific conditions under which whiskers may or may not grow, but it usually has something to do with surface tension. Just as you might move to the less crowded outside wall of a room packed with people, metal atoms move around and reform into whiskers as a way of easing tension—even the pressing of a bracket or screw.
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"...The quintessential quality of our age is that of dreams coming true. Just think of it. For centuries we have dreamt of flying; recently we made that come true: we have always hankered for speed; now we have speeds greater than we can stand: we wanted to speak to far parts of the Earth; we can: we wanted to explore the sea bottom; we have: and so  on, and so on: and, too, we wanted the power to smash our enemies utterly; we have it. If we had truly wanted peace, we should have had that as well. But true peace has never been one of the genuine dreams - we have got little further than preaching against war in order to appease our consciences. The truly wishful dreams, the many-minded dreams are now irresistible - they become facts." - 'The Outward Urge' by John Wyndham

"The very essence of tolerance rests on the fact that we have to be intolerant of intolerance. Stretching right back to Kant, through the Frankfurt School and up to today, liberalism means that we can do anything we like as long as we don't hurt others. This means that if we are tolerant of others' intolerance - especially when that intolerance is a call for genocide - then all we are doing is allowing that intolerance to flourish, and allowing the violence that will spring from that intolerance to continue unabated." - Bren Carlill
 

Offline Nuke

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Of Tin Whiskers and Lead
Reply #8 on: January 08, 2005, 04:58:21 pm
stupid environmentalistys, they always gotta screw it up for everyone. lead is no more damaging to people as smoking, or driving in cars, or eating at mcdonalds or crossing the street in phoenix. its just phucking lunacy.
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Offline Unknown Target

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Of Tin Whiskers and Lead
Reply #9 on: January 08, 2005, 05:07:30 pm
But it's killing the enviroment when you dump it into massive landfills. Not only that, it leaks into water supplies and does even worse.
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