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   niconiconi (niconiconi@mk.absturztau.be)'s status on Thursday, 28-Mar-2024 03:51:00 JST niconiconi

   Problem Exists Between Chair and Keyboard? But sometimes the problem is the chair. https://www.emcesd.com/pdf/uesd99-w.pdf"Some office chairs are capable of producing several hundreds of discharges over as much as a minute after a person rises from the chair. The sheer number and close spacing of possible ESD events makes the probability of equipment failure more likely [...]"
   
   "There is an urgent need for a standardized test so that procurement contracts can specify chairs that do not radiate this type of electromagnetic interference"

   • Haelwenn /элвэн/ :triskell: likes this.
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     Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Thursday, 28-Mar-2024 03:51:54 JST Haelwenn /элвэн/ :triskell:

     in reply to
     @niconiconi Or the floor: https://patrickthomson.tumblr.com/post/2499755681/the-best-debugging-story-ive-ever-heard
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     Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Thursday, 28-Mar-2024 03:53:22 JST Haelwenn /элвэн/ :triskell:

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     • Haelwenn /элвэн/ :triskell:
     @niconiconi Also makes me wonder how the heck even smartphones cope with being inside various pockets.
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     Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Thursday, 28-Mar-2024 03:56:00 JST Haelwenn /элвэн/ :triskell:

     in reply to

     • Haelwenn /элвэн/ :triskell:
     @niconiconi Love how he got blinkenlichts with shaking pocket change.
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     niconiconi (niconiconi@mk.absturztau.be)'s status on Thursday, 28-Mar-2024 03:56:51 JST niconiconi

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     • Haelwenn /элвэн/ :triskell:

     @lanodan@queer.hacktivis.me Without exposed signal lines, the only thing you are likely to touch is the grounded enclosure or a metal connector. Ideally, ESD into ground = nothing.

     Haelwenn /элвэн/ :triskell: likes this.
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     Warlock Of Wires (warlockofwires@techhub.social)'s status on Thursday, 28-Mar-2024 05:11:33 JST Warlock Of Wires

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     • Haelwenn /элвэн/ :triskell:

     @niconiconi @lanodan I've always had a phobia of the screen touch input circuitry being the route of ESD...

     Haelwenn /элвэн/ :triskell: likes this.
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     翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Thursday, 28-Mar-2024 12:13:15 JST 翠星石

     in reply to
     @niconiconi >Hardware is being made so crappily that it can't handle a trivial amount of ESD a whole metre away.
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     翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Thursday, 28-Mar-2024 13:18:17 JST 翠星石

     in reply to
     @niconiconi My thinkpad is going fine no matter how many times I jump on an office chair very close to it, so I think that certain hardware is really just crappy.
     
     Clearly IEC 61000-4-2 needs to be amended to match real world conditions.
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     niconiconi (niconiconi@mk.absturztau.be)'s status on Thursday, 28-Mar-2024 13:18:19 JST niconiconi

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     • 翠星石

     @Suiseiseki@freesoftwareextremist.com Hardware is not crappy. They are rigorously engineered to pass IEC 61000-4-2, which is the industry-standard ESD compliance test for the past 40 years. The lesson is that the office chairs can generate a highly non-trivial amount of ESD well exceeding the known engineering knowledge at that time: ~100 pulses in several seconds, in comparison to 10 in compliance tests.