

If one were to make hydrogen producing solar farm specifically, this could have made sense if there were efficiency gains compared to pv + electrolyser. But there ain’t, and from what i understand won’t be


If one were to make hydrogen producing solar farm specifically, this could have made sense if there were efficiency gains compared to pv + electrolyser. But there ain’t, and from what i understand won’t be


Ye i’ve seen that before. Perennial problem with this aporoach is that efficiency is capped below what pv panel can get and also now instead of wiring you need to install purified water + hydrogen plumbing. Also while you just can use only excess of generation for electrolysis, this is always on


EY pinged grok and it responded so at least he pays for twitter


i’m aware, last year i’ve been tasked to use a certain process but refused and instead modified it in such a way as to get rid of mercury salt used; it was dissolved in DMF, so (regular nitrile) gloves won’t even help. worse than that, it took me only 2-3 weeks start to finish to figure it out, meaning that anyone else could do that earlier and handful of people were put at risk for no reason. aggression as a result of lead toxicity is probably a bit more complex story and looks like it might have a developmental part, judging by delay and how kids are more susceptible to lead toxicity in general; meaning that presumably mostly adults won’t be affected to the same degree. another big nope on my list would be thallium and cadmium compounds, and while i’d only use sub-g amount at most, there are places where all of these metals are mined, and at one point are in form of fine dust fortunately these are so obscure that i’ve never came across these


long term lead exposure will also do that, and neurotoxic part at least appears to be irreversible. can’t remember how much of it is more of neurodevelopmental thing tho


patched month ago


wasn’t there a case of some supplements that were contaminated with lead? you know, a sneaky neurotoxin with no antidote whose results only show up months later


but then you’re living with red-button-pushers only


Stirling engines are woefully inefficient tho, PV panels are better unless you’re intending to supplement heat source with biomass or such. In a climate where most of energy is used for heating and little to none on AC, it just makes more sense to use solar collectors instead of PV because most of energy use will be in form of heat anyway, and per square meter collector will deliver much more. If you can couple excess heat production to seasonal energy storage, this gets you most or all of heat needs year round covered by solar, if you don’t there’s still free hot water in the summer and seriously lowered gas bill through the year. Small PV panel might make sense to keep pumps running or cover some of the rest of needs but won’t shift balance heavily either way. In a place where major use of energy is AC this approach makes no sense and PV panels with daily or a bit longer lasting storage of energy, be it in batteries or thermal (tanks of cold glycol or ice or whatever) would be the way to go, because the most sunny day is also the day when you need AC the most and this way you get most of your energy needs covered
i heard a story about varnish factory that failed quality checks after one old guy got fired, he was a smoker and used to spit in the main reactor. some enzyme from saliva made it shinier
it will vary, just after distillation (or RO/ion exchange) it should be closer to 7 then it goes down as carbon dioxide gets absorbed. that’s why it’s buffered everywhere where it matters
in my case the size of the system was so small they didn’t have that excuse, yet they were only ever able to get correct results after experimental data was handed over to them, zero predictive power, useless
seeing that jargon file has an extensive page on retrocomputing feels like figuring out that there were archeologists in ancient egypt
some people would tell you that we can simulate small bits of chemistry but it’s flat out wrong (i might be biased as i’ve wrangled for a year with computational chemists about results that don’t conform to reality) and even then errors are so large that’s it’s useless


some goods and intermediates have large energy content, like, if you wanted to use energy from large pv farm in, say, morocco, then it might make more sense to ship bauxite in and aluminum bars out (it takes some 50MJ/kg to make aluminum)
simplicity of the system would be a factor in small, unattended installations like for space heating for single home
if there’s will, there’s a way
and then some bozo says that biology is just complicated chemistry and chemistry is just complicated physics and we can simulate physics
curious thing is that i never hear biologists or chemists saying that, only some physicists and techbros. just trying to simulate your way out of small organic chemistry problems will make you even more hopelessly lost than you were before
because they are very good at marketing