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Comment: Re:frequency converter drives ? (Score 4, Informative) 334

by dattaway (#34240334) Attached to: Stuxnet Was Designed To Subtly Interfere With Uranium Enrichment

AC motors require these drives to get their speed. 60Hz would be about 1800 or 3600 rpm, depending how its wound. Most industrial drives can be programmed for 400Hz, which will spin the armature quite fast. Enrichment is like spinning glassware on a dentist's drill. Those frequencies at that high of voltage (480 volts typical) has a very high switching rate that requires exotic transistor designs. Given that these controllers aren't very common, say for a juice mixer, they can be tracked and sabotaged by the distributor quite easily.

The Courts

After Online Defamation Suit, Dismissal of Malicious Prosecution Claim Upheld 267

Posted by timothy
from the that's-a-shame dept.
Christoph writes "I'm the Slashdot user who was sued for defamation (and six other claims) by a corporation over negative statements on my website. I prevailed (pro-se) in 2008. The court found the other side forged evidence and lied. In 2009, I sued the other party's lawyers for malicious prosecution/abuse of process (the corporation itself is dissolved/broke). One defendant had stated in writing their client was lying, but the trial court dismissed my claim for lack of evidence. I appealed, and this Tuesday the Minnesota Court of Appeals upheld the dismissal, completely ignoring the defendant's written admission (and other evidence). They further found it was not an abuse of process to sue to 'stop the publication of negative information and opinion.'"

Faith may be defined briefly as an illogical belief in the occurence of the improbable. - H. L. Mencken

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