mwebster745

mwebster745 t1_jdn5jh9 wrote

I was on a thread talking about the water crisis in the west and agriculture. Suggest that we should grow less cow food and eat a meal or two less of beef a week, you'd think you were asking them to give up their left leg. Not like it's going to be an option much longer, can only grow so much food with so much water, and I doubt this 'drought' isn't just the new climate for the next few hundred years until a responsible generation can finish a draw down process

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mwebster745 t1_j86pk5s wrote

Gotta say working on an anticoagulation clinic I'm really hoping my patients I need to bridge off warfarin with a LMWH don't think this applies to them. The title is a bit overgeneralized, like you said, very specific population

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mwebster745 t1_j2bwqwt wrote

Actually the film is interesting in subtly addressing the magnetosphere thing. A moon around a gas giant would be at risk of being fried by radiation focused by the planet's own magnetosphere. This is the challenge with Europa, and why the Europa clipper mission won't ever actually orbit Europa itself. In avatar you repeatedly see areas of massive magnetic flux, generally where the 'spirit trees' are. You can tell from large rock rings standing on end, following the contouring of magnetic field lines. This is also close to the 'flying mountains' which are suspended by such a magnetic field. The new movie was a bit different, but the original mentioned 'unobtanium' being mined which was a natural room temperature superconductor causing the magnetic fields. Generally small planets and moons solidify and a solid (ish) core like Mars doesn't produce a strong magnetic field like earth has. A small moon like Pandora flying free would solidify and lose a magnetic field, then have it's atmosphere stripped by solar wind, again like Mars, but an exo-moon would have massive gravitational tidal flexing to keep it's core active just like Io and to a lower degree Europa.

So kinda, outside of the magic 'unobtanium' it could exist

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