And that's fair. I think, though, that they were pointing out that the violence in that case would be mob violence from the hypothetical revolution, not actually at the behest of an authoritarian ruler. The death penalty is not involved. They seemed to be arguing that, at some point, the measurable and visible harm a person or small number of people does or do to the world by their continued practices, combines with the risk of them using their power and influence to escape from justice should any real attempt be made to force them to reconcile with their crimes, and that this inability to enforce justice without death, combined with the inherent injustice of doing nothing, could be the fomenting factor for mob violence against such tyrants.

Rust my bolts and call me the tin man, 'cause I'm standing next to the biggest strawman of the century, and he still has no brain. Dorothy's probably on her way any second.

[-] wolframhydroxide@sh.itjust.works 22 points 3 days ago* (last edited 3 days ago)

Hard disagree: they exhibit 4 perfect octahedral cleavage planes in addition to their adamantine lustre, diamond is one of the most useful materials in existence, and their petrological origins speak to incredibly interesting conditions of formation! In fact, a mineral inclusion within a diamond gave us our first solid evidence of the existence of water at equilibrium with mantle rock at depth on Earth, which was previously largely discounted.

But yeah, fuck De Beers.

[-] wolframhydroxide@sh.itjust.works 2 points 1 week ago* (last edited 1 week ago)

Alright, now we agree: solar isn't for everywhere, and the gravity storage method won't work in most places. You need preexisting slope, and my original comment was highly US-normative. As such, yes, we would need huge swathes of solar and wind collection sites, passive wave generators, pumped hydro and, yes, perhaps nuclear. Not everything will be "on" all the time. As far as the energy vs. Electricity numbers, while I vacillated between different terms, I WAS quite careful to only include electricity numbers throughout my stats and, again, none of my points were trying to prove that solar, specifically, is the right answer for the netherlands in exclusion of all else, but only that a significant energy storage problem can be solved with gravitational potential, and that the solution IS scalable if sites are selected carefully, and the fact that this has not been tried at scale anywhere in the world is due to government corruption. Still a US-normative idea, which I'll grant, but still true, when you have places from morocco to the Gobi, to the outback to the western US, all with significant natural elevation change, significant open areas, and excellent prospects for renewable energy sources of ALL kinds.

Also, as far as solar panels go, remember that actual diode solar panels are NOT the only way to harvest solar energy (let alone the cheapest). Mirrors can easily be used to boil water, and this plan was nearly attempted throughout egypt a hundred years ago (see Frank Shuman's solar thermal generators). However, I'm not about to argue that we should put giant solar collectors in one of the countries that is simultaneously the most population-dense (3rd highest in europe, IIRC) AND in a climate where large-scale solar is somewhat inefficient, ESPECIALLY when you have so much available wind power.

[-] wolframhydroxide@sh.itjust.works 2 points 1 week ago* (last edited 1 week ago)

And hey, you know what, that's almost got a point. Firstly, I'm in the US, and I'll freely admit that my comment was highly US-normative. However, I believe my comment on government corruption stands for the US case, where there is an insane amount of space that is already partly-developed in random bits of desert.

Now, let's get into your claims against the Netherlands case. Let's do some "basic maths":

  1. Unless the IEA is very, VERY wrong, your claim that the Netherlands consumes "2600 petajoule per day" is INSANELY high. Every statistic I can find shows electricity consumption being between 113 [2] and 121 [1] Terawatt-hours per annum. Let's divide that larger value by 365 (assuming uniform seasonal demand), then convert that into joules, and we get 1.19 Petajoules per day. more than a THOUSAND times smaller than your number.
  2. Secondly, this "just 1 small country" bit is spurious, since your "small country" is the 33rd-greatest electricity consumer in the world for the 77th highest population [2]
  3. The assumption that you must store an entire day's worth of energy demand is ludicrous. Let's be generous and assume that you have to store 50% of the day's energy demand, despite the fact that the off-hours are during the night, when electricity demands fall off.
  4. Next, let us point out that we don't need to abandon literally every other method of energy generation. From wind energy to, yes, nuclear, the Netherlands is doing quite well for itself outside of solar. Let's assume that we need to cover all of the electricity that is currently produced using coal, oil and natural gas. All other sources already have infrastructure supporting them, including the pre-existing solar. This amount comes to about 48% [1], so let's assume 50%.
  5. Now, we need to cover 50% of 50% of 1.9 petajoules at any one time, or 475 gigajoules, at any one time.
  6. Because I neither want nor need your supposedly-charitable assumptions, let's use the actual numbers from ARES in Nevada:
  • Their facility's mass cars total 75000 tons in freedom units, or about 68040000 kg. [3]
  • They claim 90+% efficiency round-trip [4], but let's assume that your condescending tone has made the train cars sad, so they're having a bad day, and only run at 80% efficiency, despite the fact that we've known how to convert to and from GPE with insane efficiency ever since Huygens invented the fucking pendulum clock.
  1. Now, is this perfect for everywhere? Of course not. Not everywhere has the open space necessary. The ARES site requires a straight shot about 5 miles long, but they managed to find one that, in that distance, drops 2000 feet (~610 m) [5]
  2. Now, let's do the math together: 475000000000J / 10m/s^2 / 68040000kg / 80% Efficiency = 880m total elevation needed
  3. Thus, unless my math is quite off, we would only need 2 of the little proof-of-concept ARES stations running at 80% efficiency to more than cover the energy storage needs required for your country to completely divest from fossil fuels and go all-in on solar for the remainder of your needs.

Quod Erat Demonstrandum.

[1] https://www.iea.org/countries/the-netherlands [2] https://en.wikipedia.org/wiki/List_of_countries_by_electricity_consumption [3] https://aresnorthamerica.com/nevada-project/ [4] https://aresnorthamerica.com/gravityline/ [5] https://energy.nv.gov/uploadedFiles/energynvgov/content/Programs/4%20-%20ARES.pdf

ETA: rectify a quote ("just 1 small country"), and make it more civil in response to the prior commenter removing some of their more condescending language.

Again, a fair point. Assuming that anyone with an idea of the meaning of "potential energy" survives the next ten years, I'd still like to see it more fully explored in the american west, but it is, unfortunately, rather a moot point for at least five years.

[-] wolframhydroxide@sh.itjust.works 2 points 1 week ago* (last edited 1 week ago)

I agree with you on the linearity issue. I just feel like using its size as a criticism is invalid, given that the very source you cited pointed out that the reason it's so small is because they chose to reuse an already-disturbed site, rather than building it on 100 acres of BLM land, which I'd argue is quite admirable. The colocation point is also fair, though our water resources in the entire american west are severely limited, and will become moreso over the next 50 years. Utah's declining snowpack and the overdrawn Colorado can only cover so much. I feel like, while the GPE law is linear for both mass and height, the fact that we can scale both is a point in favor of both pumped hydro and rail storage, and rail storage can be stored virtually indefinitely, as long as it doesn't have time to rust in place. Being able to supplement the off-hours is absolutely doable with rail.

I feel like we're missing the part about "push carts up a hill", which involves virtually no serious engineering difficulties aside from "which hill" and "let's make sure the tracks run smoothly". See: the ARES project in Nevada

Let's be clear, the only reason grid-level storage for renewables "doesn't exist" is because of a lack of education about (and especially commitment to) simple, reliable, non-battery energy storage such as gravitational potential, like the ARES project. We've been using gravitational potential storage to power our mechanisms since Huygens invented the freaking pendulum clock. There is simply no excuse other than corruption for the fact that we don't just run a couple trains up a hill when we need to store massive amounts of solar energy.

[-] wolframhydroxide@sh.itjust.works 5 points 4 months ago

Yeah, the only reason I replied was because you were responding to the calcium dude above, then said "s-block". Just wanted to spread the good word of the 9th-most abundant element in the universe 🙏

[-] wolframhydroxide@sh.itjust.works 4 points 4 months ago

Magnesium is fine (see response above). https://invidious.darkness.services/watch?v=Q_4I30Nz_b0 Just don't vomit on it before you lick it, 'cause it'll get spicy with acid.

[-] wolframhydroxide@sh.itjust.works 9 points 4 months ago* (last edited 4 months ago)

I have elemental magnesium (4 ~50g ingots, I keep it in my library in a barely-sealed ziplock). it's shelf stable and doesn't react violently with water. Want me to try licking it and let you know? (hint: at worst it'll make a minuscule amount of milk of magnesia)

ETA: Would I stick my tongue in pyrophoric magnesium powder? No, and you wouldn't do that with pyrophoric aluminum or zinc powders, either, but that doesn't stop me from using (or licking) alumnum foil. Proof: https://invidious.darkness.services/watch?v=Q_4I30Nz_b0

view more: next ›

wolframhydroxide

joined 4 months ago