[Mohammed Al-Sabah]

Maximum operating altitude: 10,000 feet
Maximum storage altitude: 15,000 feet
Maximum shipping altitude: 35,000 feet





lol cant use our PB's on the plane?



or is is cuz airplanes are presurerized?



http://www.apple.com/powerbook/specs.html

[Kenstee]

[QUOTE]Originally posted by Mohammed Al-Sabah:
[B]Maximum operating altitude: 10,000 feet
Maximum storage altitude: 15,000 feet
Maximum shipping altitude: 35,000 feet

lol cant use our PB's on the plane?



Relax Mohammed, Airplanes are pressurized. No problems. Could be an issue if you plan on mountain climbing I imagine.

[jac]

Originally posted by Mohammed Al-Sabah:

Maximum shipping altitude: 35,000 feet

So that's why the 17-incher took so long to arrive...

[TAZ]

Dont freak. Plane cabins are pressurized to 8,000 feet so you can use the PB on the plane. Wonder why the pressure limits are put in place? Does the LCD burst or are the bearings for the HD pressurized fluid????

[pcalver]

Remember that PC's are air-cooled devices. They need a certain amount of air density around them to properly dissipate heat. If the air is too thin, the computer will overheat. That explains the limitation on operating altitude.
The absolute altitude limitations are probably related to concerns about the gas-filled parts of the machine, which I believe would be mainly the screen. A large positive or negative pressure differential with the ambient air may crack or burst the screen.

[msykes]

I wonder... don't mountain climbers take laptops up with them? I'm not saying the quoted values aren't a good thing to try to follow, but I'm fairly sure the powerbooks won't *all* break immediately. It probably does decrease the life of the book, due to various factors already mentioned.

After all, Apple does publish mountain climbing stories on it's own page!

http://www.apple.com/hotnews/article...aro/index.html

[Propofol]

Originally posted by pcalver:
[B]Remember that PC's are air-cooled devices. They need a certain amount of air density around them to properly dissipate heat. If the air is too thin, the computer will overheat. That explains the limitation on operating altitude.

If you are high enough to have air be that thin, it's likely to pretty cold isn't it? Maybe heat wouldn't be the reason...

[tobster]

Originally posted by Propofol:
If you are high enough to have air be that thin, it's likely to pretty cold isn't it? Maybe heat wouldn't be the reason...

Well, the computers won't work below 10 degrees C anyways so ...

Apple.com:
Operating temperature: 50� to 95� F (10� to 35� C)

tobs

[nobitacu]

The plane is presurerized, so it'll work fine. That only applies if you are on high land or mountains or something... out doors...

Ming

[Mohammed Al-Sabah]

i used my pb in canada ..temp was about -12 and -18 with wind shear worked fine? hmmm........ i dont get it

[makkystyle]

These are RECOMMENDATIONS people. It's so idiots who sit outside in 110 degree weather working on their computer for hours on end can't return their computer to apple when the processor blows from the heat. It's all about limiting liability, i.e. the powerbook won't explode the moment you go above 35,000 feet or operate it above 15,000

[Mohammed Al-Sabah]

Originally posted by makkystyle:
These are RECOMMENDATIONS people. It's so idiots who sit outside in 110 degree weather working on their computer for hours on end can't return their computer to apple when the processor blows from the heat. It's all about limiting liability, i.e. the powerbook won't explode the moment you go above 35,000 feet or operate it above 15,000

LOOOOOOOOOOOL darn so i cant use my powerbook in Kuwait ( out doors in summer )

heheh Makk u made me laugh with your last post i needed that thx

[PBAddict]

So no powerbook in space then!!

[seanyepez]

Originally posted by PBAddict:
So no powerbook in space then!!

PowerBooks will operate perfectly in a pressurized space shuttle, though.

[darcybaston]

Hehe yeah, maybe they should add:

*iBook will not function normally in a vacuum.

[naphtali]

Originally posted by darcybaston:
Hehe yeah, maybe they should add:

*iBook will not function normally in a vacuum.

Erm... Neither will you

[JHromadka]

I think the numbers have to do with the hard drive that is in the Powerbooks. Most hard drive mfrs quote similar numbers.

[GlobalNomad]

Originally posted by naphtali:
Erm... Neither will you

He would hold his breath

[buddy1065]

Guess I can forget about taking mine to the moon....BUMMER...