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Visor problems partially explained-comments welcome

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Topic: Visor problems partially explained-comments welcome    
crazedclay
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Registered: Apr 2002
Location: Edmonton
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Exclamation Visor problems partially explained-comments welcome

The visor, as it appears to me is a delicate piece of machinery, they are thin and the internal components must also be thinner to save space. Therefore the chances of them failing is greater. The touch screen is obviusly the most delicate. Here is my theory, to get a Handspring shipped in 24 hours, you do it by air right, well the air pressure in planes, while heavy enough to sustain human life is still lower than on the ground, the lower pressure distorts the touch screen (damaging it) and screws with the internal components (expanding and contracting, bursting, etc). whaddya think

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crazedclay is offline Old Post 04-09-2002 07:26 PM
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mr_yellow
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That's plausible, but the luggage pressure is most likely the same as the cabin pressure since they gotta stick dogs and stuff in there as well (I'm generalizing but this is my understanding. Correct me if i'm wrong). I don't think the pressure changes in an airplane could possibly warp the screen or damage any of the internals.

I believe in the static electricity theory. When i had the visor edge, I'd experience several times, whenever I inserted teh edge into the cradle, I'd get the popping noise fro my speakers (like when you quickly yank out the audio cable or let it touch a metal object while it was still powered.

I knew this was due to the static electricity because I'd get it more often when plugging it into the cradle in the morning (after the edge spent the night in bed with me (rubbing against sheets), than when I plug it in at the end of the day when I get home from work.

I also blame it for killing my video card (USB port is millimeters above my video card). Though I never had a problem with the edge (fatal errors, digitizer etc), i knew static electricity was there....

I still loved my edge.. such a beautiful device. just awesome..

mr_yellow is offline Old Post 04-09-2002 10:11 PM
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crazedclay
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Registered: Apr 2002
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what I mean is that while cabin pressure is uniform no matter where you are in the plane, it is uniformally lower than on the ground. so, stuff expands more. Also why your ears pop. The static electricity is a good way to look at it too, and I wouldn't be a bit surprised if it causes more problems than shipping.

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crazedclay is offline Old Post 04-09-2002 10:30 PM
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Yorick
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quote:
Originally posted by crazedclay
what I mean is that while cabin pressure is uniform no matter where you are in the plane, it is uniformally lower than on the ground. so, stuff expands more. Also why your ears pop.

I think what you mean is that the air pressure is lower when you're at say 30,000 feet than when you're on the ground, which is why the airplane cabin is pressurized (sealed), so the air inside matches that on the ground.
The cargo hold may not be pressurized, I don't know. One hopes so if animals are being transported, in which case the air pressure would be the same or similar to that on the ground and negates the theory. (sorry dude.)
I don't know enough about the physics of it to authoritatively say whether or not a change in air pressure is going to cause the molecules of an LCD screen to warp or expand. the sensation of your ears "popping" is just an equalization of pressure of the air inside and outside your head, nothing's actually expanding.
Temperature extremes, on the other hand, definitely cause expansion/contraction. That's why my door never closes right in the winter.

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Yorick is offline Old Post 04-10-2002 12:05 AM
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PerfectMachine
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Wink Hmmm...

Uhhh... What Visor problems?

It's funny though, every (and I mean every) time I get out of my truck, when I touch the door to close it there is always a violent static discharge. A loud pop and a flash and the whole bit. I'm so used to it that I always gingerly touch the door frame before I actually close it. The discharge is more mild that way. I was afraid this static build up would affect the Edge somehow as it's always in my pocket, but so far it hasn't.

PerfectMachine is offline Old Post 04-10-2002 01:53 AM
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dampeoples
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What if they truck those pieces to the stores. Or if they ride on ships?

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terrysalmi
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Registered: Feb 2002
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They might truck em to stores, but replacements are sent Airborne Express (which usually means it is not trucked...) Atleast it couldn't of been trucked with how quick I recieved my replacement recently!

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terrysalmi is offline Old Post 04-10-2002 02:47 AM
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Yorick
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Re: Hmmm...

quote:
Originally posted by PerfectMachine
It's funny though, every (and I mean every) time I get out of my truck, when I touch the door to close it there is always a violent static discharge. A loud pop and a flash and the whole bit. I'm so used to it that I always gingerly touch the door frame before I actually close it. The discharge is more mild that way. I was afraid this static build up would affect the Edge somehow as it's always in my pocket, but so far it hasn't.

I've never, ever had that happen to me with any vehicle. leather seats, cloth seats, plastic covered seats (don't ask), sheepskin covers, etc. I'm not building up that kind of static charge. Either you're a major conductor or there's a wire in your truck somewhere that's touching the metal and shouldn't.
This concerns me a great deal. Please have it looked into, if you haven't already.

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Yorick is offline Old Post 04-10-2002 02:50 AM
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dampeoples
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It's only 12V.

dampeoples is offline Old Post 04-10-2002 02:55 AM
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PerfectMachine
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Re: Re: Hmmm...

quote:
Originally posted by Yorick

I've never, ever had that happen to me with any vehicle. leather seats, cloth seats, plastic covered seats (don't ask), sheepskin covers, etc. I'm not building up that kind of static charge. Either you're a major conductor or there's a wire in your truck somewhere that's touching the metal and shouldn't.
This concerns me a great deal. Please have it looked into, if you haven't already.



Hmmm. Well, it doesn't happen with anyone else that rides in it... it also has berber floor mats, maybe that generates more static somehow. I have a friend who has this Neon and the same thing happens to him, but not to me when I am in the car. It irritates him and he exclaims, "why doesn't this happen to you!?" and I keep telling him that it does, only in my car. But your advice is something to think about.

PerfectMachine is offline Old Post 04-10-2002 03:20 AM
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EricG
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quote:
Originally posted by dampeoples
It's only 12V.


It's actually quite a bit higher:

"What we call "Static electricity" also has another name: "high voltage." All of the familiar electrostatic phenomena which occur in everyday situations always involve voltages above 1,000V, and ranging up to around 50,000 volts at the most. If it attracts lint or raises hair, it's definitely over 1,000 Volts. Rub a balloon on your head, and you generate tens of thousands of volts! This is voltage without a current. Here's a way to think about it: pure electric current involves a current with low or zero voltage, while pure "electrostatic" phenomena involve electrical voltages with low or zero current. Scuff your feet on a carpet and you create a voltage difference of many thousands of volts between your body and the carpet. Study "static electricity" and you study voltage itself."

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EricG is offline Old Post 04-10-2002 05:47 AM
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EricG
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For those in need:

HUMANS AND SPARKS
The Cause, Stopping the Pain, and "Electric People"

"Car Sparks," "Electric People"



http://www.amasci.com/emotor/zapped.html

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EricG is offline Old Post 04-10-2002 05:52 AM
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Yorick
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quote:

If you ever end up with more negative than positive, or with more positive than negative, then you have a charge-imbalance on your body. You will get zapped the next time you touch a large metal object.

well, there ya go. nothing to do with the vehicle specifically.

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Yorick is offline Old Post 04-10-2002 06:04 AM
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dampeoples
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I was referring to the potential problem Yorick was concerned with.

dampeoples is offline Old Post 04-10-2002 03:12 PM
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