A physics based game, where you fix the power plant and keep the power on, too. Good luck.
http://web.physik.rwth-aachen.de/~harm/aixphysik/atom/NuclearPowerPlant/index.html

http://web.physik.rwth-aachen.de/~harm/aixphysik/atom/NuclearPowerPlant/index.html
Please use spoilers for hints and walkthroughs:
[spoiler=Title Here]Enter text here...[/spoiler]
Please do not post a video walkthrough for 7 days.
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