Comments by "Stephen Villano" (@spvillano) on "DENKI OTAKU" channel.

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  16.  @d614gakadoug9  yeah, that could either turn expensive or expensively entertaining, rather than enlightening. Entertaining, if it's only the reference legs on a wheatstone bridge wandering in value randomly. Expensive, if it's measuring production or providing a reference bias... Well, unless one's goal is to, rather than turn out a flat and true product, produce a funhouse mirror. ;) Sounds only minor, until one considers the difference between a non-precision automotive bearing and a high speed turbine bearing. Then, wobble shakes things apart and lateral runout can turn a stator into fragments as the rotor tries to convince it to joint it in its motion. Did you ever look at what's required for use in space? That's even tighter, due to thermal, oxidative effects of the rarefied upper atmosphere and radiation effects, to name a few variables (not to mention no free oxygen being permitted in anything, especially insulators). Worked briefly with that, boy, but the requirements were demanding, exacting and absolutely necessary. Or, in the case of the Mars rovers, one EE asked, "Do dust devils possess an electrostatic charge?". Everyone he asked didn't think so, but couldn't find any reference. So, he made a trip to the desert with some instruments and was horrified to find tens of kilovolts accumulating within dust devils. That necessitated a complete review of rover circuitry. The finding being, as initially designed, the rovers would've failed catastrophically on first contact with a dust devil. Now, they're optical cleaning events.
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