[rescue] [off-topic] Vacuuming your servers is like cleaning them with a Van deGraff generator

Tõnu Samuel tonu at jes.ee
Thu Jul 28 00:21:01 CDT 2011

On Wed, 2011-07-27 at 23:10 -0600, Robert Darlington wrote:
> I have no idea what you're talking about but it sounds like you're
> suggesting that this isn't true.  I've done the testing and it is.  DC fans
> are DC generators when you spin them.  Hook one up to a scope and spin it
> with compressed air like I did, both in and out of the circuit.

Not all. I have here high-end fans which contain 3 phase generator
inside and do not pass anything back normally. But this is not important
discussion in this list I suppose :).


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