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From: Physfitfreak <physfitfreak@gmail.com>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Hard Drive Failure Reprise
Date: Mon, 9 Dec 2024 18:06:31 -0600
Organization: Modern Human
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On 12/9/24 5:28 PM, Farley Flud wrote:
> On Mon, 9 Dec 2024 17:00:41 -0600, Physfitfreak wrote:
> 
>>
>> The charge on a mesh formed by continuous friction with air is more
>> likely positive if the mesh is metal or glass, and likely negative if
>> the mesh is plastic or rubber.
>>
> 
> No.
> 
> Trucks can develop static charges when moving down the highway
> at high speed but they used to install chains that dragged on the
> ground to dissipate the charge.  Chains are no longer used because
> truck tires are made to be conductive and will dissipate any
> charge.
> 
> A grounded heat sink cannot develop a static charge.
> 
> Here is a post on reddit which describes the boundary layer
> effects:
> 
> https://www.reddit.com/r/askscience/comments/3hcd6s/how_does_a_constantlyrunning_fan_collect_dust/
> 
> This is an excellent description and one of the best that I
> have seen.
> 
> The boundary layer can be very significant.  It's why they
> add "dimples" to golf balls.
> 
> 
> 


Hmm.. That must be why I didn't see your post in sci.physics :)