Laptop outside -> may cause condensation on hdd when going inside ?

[Zbigniew Koziol]

Peter wrote:
> Dew point is the temperature of an object at which water from the atmosphere
> condenses on it. It forms a fogging layer on a lens and a deadly layer on a hard
> drive when the heads which are supposed to be flying a few microns above the
> platters plough into the water droplets condensed on it, creating furrows where
>   

Hard drive has vacuum inside. The outside air does not go inside.

The problem still potentially exists since water may cause short-circuit 
on the surface where electronics is placed but I do not thing this is a 
serious problem. Make rather an experiment, take an old unused HD and 
see what happens.

I guess that wrapping HD in a sort of plastic bag would protect it well 
enough. However, have in mind that wrapping it would also case poorer 
cooling by air, and there is a substantial amount of heat released on HD.

Or you can spray it over the entire external electronics (except of 
connectors) by some sort of non-electricity conducting substance. Though 
I suspect this may be done already at factory.

My friend put once a HD into his luggage when going by plain. They are 
stored in unheated compartment of airplaine and vacuum seeling got 
broken because of cold. He lost HD.

zb.


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