Reverse Polarity: Difference between revisions

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* In the original ''[[Spy Kids]]'', the heroes force a [[Heel Face Turn]] of the titular Spy Kids robots by reversing their alignment polarity. He does this by ''inverting the binary code''. While it probably would stop the robots from attacking, they would be more likely to crash then turn good. Of course, you can [[Never Say "Die"]] in a kids film, so...
* In ''[[Young Frankenstein]]'', Frederick reads from his [[Doctor Frankenstein|grandfather's]] book ''[[Fictional Document|How I Did It]]'':
{{quote|"'...until, from the midst of this darkness, a sudden light broke in upon me. A light so brilliant and wondrous and yet so simple. Change the poles from plus to minus and from minus to plus. I alone succeeded in discovering the secret of bestowing life. Nay, even more... I myself became capable of bestowing animation upon lifeless matter!' ...[[ThisPunctuated! IsFor! SpartaEmphasis!|IT - COULD - WORK]]!!!"}}
** Some fans justify it in that, being at the end of the journal, we don't hear all of it. Basicly what if one neck bolt was positive and the other negative, and the first experiment got them wrong? For the second one, you would reverse the poles and it would then work.
* In possibly the earliest use of this trope, ''[[Frankenstein Meets the Wolf Man]]'' (1943), Dr. Frankenstein's journal explains that the practically immortal monster can be killed by attaching him to the machine that gave him life and "changing the poles".