I'm less concerned that neutrinos don't act like this, and more amused that any particle can heal a bisected corpse simply by being aimed at it.
Diverting power from life support makes all the heat from the hallways instantly vanish? Where does it go? Is 23rd century technology somehow effortlessly recapturing the heat and turning it into electricity? Is that what they've been doing all these years every time they "diverted power from life support?"
It was cold enough for Chapel's finger to snap right off, but she's walking around completing tasks with her face uncovered? It's great that they let the actress emote, but...
What the episode lacked in believability it made up for in good character work. Loved seeing Scotty's connection with the Enterprise being born, loved seeing Chapel put to the test (and actually giving her actress something to do for the first time since the second season). I also always appreciate bottle episodes just because of how gorgeous these sets are, and the special effects here were top notch, too.