TLDR: "...results of these causal estimates of employment effects is that fiscal incentives for data centers cannot be justified on the grounds of job creation"
Calcining Mg(OH)₂ -which is what you find in seawater -
converts the soft compound into magnesium oxide, a valuable mineral commonly used in refractories, catalysts, and ceramics.The Chemical Equation: \(Mg(OH)_2 \xrightarrow{\Delta} MgO + H_2O\)Temperature Requirements: You need to heat the magnesium hydroxide to a temperature range between 500°C and 900°C. Heating at the lower end (around 500°C) yields a highly reactive, porous form of nano-MgO, while heating above 1,200°C creates "dead-burned" MgO used in high-heat industrial bricks.The Yield: The weight of your final MgO product will be roughly 69% of the original Mg(OH)₂ mass, as the evaporated water accounts for the 31% weight difference.
Already energy intensive. To get to magnesium ore is another step.
>Calcining Mg(OH)₂ -which is what you find in seawater
I'm not sure what to say, because it looks like you are copy-pasting from Wikipedia or something like that. Anyway, Mg(OH)2 is not found in seawater. Mg2+ is found as a dissociated ion. When you dry it, it mostly becomes MgCl2 with a little MgSO4. Mg(OH)2 is produced from seawater by the alkaline extraction process I mentioned before, and the process in TFA is interesting because it might be better.
Also, nobody would ever make magnesite ore. I referenced magnesium ore prices to estimate the value of the magnesium-as-ore in sea salt, because using finished magnesium prices would be misleading. Magnesium is mostly consumed either as the metal or as the oxide in cements and ceramics.
"I have long felt airlines should simply charge two fees: one for volume (i.e. economy/business class, etc.), one for weight (person plus all bags, checked or carry-on)."
Couldn't agree more. More often than not I have found myself paying for a seat with more legroom only to find myself next to a person twice my "width" and weight and significantly impacted in my comfort because of it. If say the statistical average https://www.cdc.gov/nchs/fastats/body-measurements.htm
would serve as a baseline for charging more if above, perhaps that might work.
Whether or not you agree with the decision to attack Iran (for the record I DON'T agree with it) the fact remains that the conflict is ongoing. If your standard for force protection and conflict in general is that it's only important when we all agree with the conflict, it should be easy to see why that isn't workable.
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