u/FrumpledFrumpus

The main issue with hydrogen as an energy source or battery is that it is exceedingly difficult to store in conventional steel or aluminum containers, especially if it needs to be cooled and condensed into a liquid. Some proposals for storage are bonding the hydrogen to nitrogen in the form of ammonia or using the porosity of various carbon sources to adsorb it.

With all this being said, why can't we just dissolve dihydrogen in an organic solvent like methanol or hexane? I'm thinking of this the same way acetylene is stored in an acetone sponge before releasing pressure, liberating the gas. Are the solubilities in these substances inadequate, or would it just be too expensive compared to the alternatives?

Asking from a purely psychological perspective. I can say that I am afraid of snapping turtles through a mixture of childhood exposure and perpetuation in my life. Every time I see one, even in a picture, I jump. But this fear hasn't stopped me from pursuing my hobbies, specifically hiking and herping (wading into water to catch frogs, fish, and snakes). If it doesn't impede my daily life, can it still be called a phobia? I'm always a bit anxious when I go into water, but it isn't enough to stop me entirely. I know this fear is irrational because I have never been attacked by a snapping turtle and know they prefer to avoid humans.

Given all of this information. What would you call this? A hypophobia? Just a normal reaction? I'm really not trying to diminish phobias people have. I'm just curious on the nomenclature and psychology of it.

Given the ubiquity of grasslands, savannas and prairies today (debateably the largest terrestrial biome by area), were there such environments before grasses, sedges and their relatives evolved? It's just hard for me to picture a flat dry land inhabited solely by stunted bushes and trees where precipitation could allow for so much more. I'm particularly interested in this question from a pre-angiosperm point of view, because I'm guessing angiosperms resembling grasses existed briefly before true grasses.