We've watched movies and TV shows about space travel since we were little kids. Most of us have also watched the miracle of real space travel, such as the many videos we have of operations on the ISS. Have you noticed the real difference between the two? In the real world, we have not achieved artificial gravity. Not that we've ever tried to. But it's in every show involving space travel. That one system must require a lot of power.
Adam Schwartz (previously at Neatorama) took this idea and ran to its logical conclusion. When a ship's life support systems are failing, as happens a lot when you're trying to add drama to a plot, why not try turning off the artificial gravity system and use the enormous amount of power it's consuming for life support? One might think that the system is built like some modern electronics without an off switch. -via Geeks Are Sexy
Rerouting power doesn't really make sense, either. Onboard a modern-day submarine, if they lost their power plant, would they be able to e.g. hook up a nuclear warhead and generate the electricity they need??? Of course not.
While I've mentioned it here too often, recently, I have to call out The Expanse (2015-2022). The on/off nature of gravity on their ships, and the reduced gravity on smaller planets/asteroids, is a central plot point throughout the story. They don't even explain it, you just have to watch a while to figure out they have gravity while under propulsion, and float around (or use magnetic boots) when their ships are not accelerating.
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