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fullsquare

@ fullsquare @awful.systems

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Joined
1 yr. ago

  • load bearing worm

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  • 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

  • load bearing worm

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  • 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

  • load bearing worm

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  • seeing that jargon file has an extensive page on retrocomputing feels like figuring out that there were archeologists in ancient egypt

  • load bearing worm

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  • 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

  • A new liquid battery stores solar heat for weeks

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  • 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

  • load bearing worm

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  • 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

  • load bearing worm

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  • maybe it introduces some critical contaminant (many such cases)

  • A new liquid battery stores solar heat for weeks

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  • all of that without heat pumps too

  • A new liquid battery stores solar heat for weeks

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  • It is a liquid that after irradiating stores that energy while still cold and can be made to release it in form of heat on demand. but also it's low grade heat mostly useful for heating and not for electricity generation. It would be simpler to just build long range transmission lines or put energy intensive manufacturing near PV farm in sunny region

  • Wonder why?

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  • that's a weird metric to look at because drug approval happens only like, 5-15 years after end of preclinical research, sometimes longer

    clinical trials also take fuckton of money but this might be also post-2008 cuts that we only see effects of now

  • A new liquid battery stores solar heat for weeks

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  • it's transparent too so you can just put pv panel underneath to capture the rest

  • A new liquid battery stores solar heat for weeks

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  • you get 1.6MJ/kg just by irradiating this thing, nothing else is needed and its storable for months as noncorrosive room temperature liquid

    to make ammonia you need to have pv to turn light to electricity then make hydrogen out of it then make ammonia in haber process, each step generates losses and none are practical on small scale

  • A new liquid battery stores solar heat for weeks

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  • there is a problem that it can heat itself up so hard during decomposition that it can just go on without catalyst

  • A new liquid battery stores solar heat for weeks

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  • aaand it boils water again

  • Myanmar is now one of world's top producer of opium post-Afghanistan decline. Despite myanmar having direct borders with China and India , I can't find any drug crises there unlike fentanyl in US?

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  • i guess this is partially because chinese opoid users die from bullets and not from overdoses

  • Crypto scam lures ships into Strait of Hormuz, falsely promising safe passage

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  • they could be just as well from cambodia for all we know

  • Crypto scam lures ships into Strait of Hormuz, falsely promising safe passage

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  • scammers don't give a fuck and you can find them in any country in the world

  • How closely are the feds watching lemmy?

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  • e2ee is not enough you also need to know what these ends are

  • Will carrier drone and mesh nets be the coms of the revolution?

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  • lora bitrate and radiated power are tiny and such considerations are only important in peacetime. gps is jammed now routinely and it's more important than 95% of iot dogshit. telemetry and remote control that matters is either wired or has reserved separate band, like power grid switches. not sure wdym by logistics

    you also have to be stealthy and if you emit you're seen and if you're seen you'll be found and soon dead. lora doesn't help you with that especially if you increase power to overcome jamming. using starlink in iran now for example is a capital offense. last time i've checked, irgc ew looks for starlink wifi and they can find it even if it's renamed because of its distinct signature. it takes less to spot lora. they do not look for uplink for some reason but they try to jam it and downlink too

  • Why don't spaceships rotate to cause artificial gravity?

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  • microwave datalinks might have beamwidths of perhaps fraction of degree, but it's still not much