What's good in small concentrations, but lethal in higher? What's a glaring red flag you're encroaching on a lethal concentration?

ilex@lemmy.world to No Stupid Questions@lemmy.world – 102 points –

Like Fluoride or Oxygen.

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If the gravity were strong enough and the source close enough then the tidal force would absolutely be strong enough to simultaneously crush you and rip you apart. The same effect gives rise to tides on this planet, hence the name.

Your orbiting a black hole situation is a perfect example of a situation where the gradient alone would tear you apart.

I just proved this claim of yours wrong, and then you move the goalposts. I said from the very beginning that a gravity gradient is a problem.

I studied Relativity at university as part of combined Physics/Maths degree, but please feel free to continue entertaining us with your popular magazine-based learnings.