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

[James Knott]

Zbigniew Koziol wrote:
> 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.

Ummm...  If there was a vacuum, there wouldn't be any air to cause the
heads to fly.
>
> 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.
>

I always take the computer as carry on luggage.

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