TV and Film t-shirts | Reverse The Polarity women's t-shirt
Women's funny sci-fi t-shirt!
It's a common theme in sci-fi, that if you suddenly find yourself in a tricky situation, there's usually a piece of equipment somewhere that will do the job, but only if you reverse the polarity.
Just once, wouldn't it be great if the engineer on the starship, or The Doctor's Companion, or someone with a grounding in science would pipe up with something like, "Captain, reversing the polarity is an idiotic suggestion that is likely to break the equipment!"
I mean seriously, have you ever reversed the polarity on anything?
If you reverse the polarity of a compass, you end up going north when you think you're going south.
If you reverse the polarity of a battery, your toy car won't work at all.
If you reverse the polarity of your eating utensils, you end up with food all over the table and probably some cuts to the hand holding the knife.
If you reverse the polarity of the wiring inside the plug for your TV, don't expect the manufacturer to honour the warranty.
If you reverse the polarity of a combustion engine, it would suck in air from the exhaust pipe, and spray dirty oil into the petrol tank.
I don't even want to think about what might happen if you reverse the polarity of some part of a nuclear powered engine, starship warp drive or TARDIS.
All in all, few and far between are the situations in which reversing the polarity might be an apt suggestion, and yet starship captains and other sci-fi leaders seem to suggest it on an uncanny basis, as though it's a scientific cure-all.
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