Contact me on matrix chat: @nikaaa:tchncs.de

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Joined 2 years ago
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Cake day: January 12th, 2024

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  • my take is that 1. you don’t need equal supply year-through because big consumers should be able to sleep and reduce their energy intake in the winter. yes i know that is complicated, but sleep is also complicated in nature and evolution still pulled through with it because it does pay off in the long term.

    secondly, storage can also be renewable biomass. i have some napkin math sitting around somewhere on my disk that says that about 5% of the yearly energy demand can be covered with basically non-cost “waste” biomass that’s basically being burned to get rid of it today. I actually wanted to write a longer post about it in the [email protected] community, i just couldn’t figure out how to properly present my calculations yet.




  • Technically, there’s only two sources of energy in the universe: nuclear energy and the expansion of the cosmos.

    Like, solar is fusion, ofc, the light coming from the sun. So is wind and water and bioenergy (indirectly). Geothermal is fission (heat comes from radioactive decay inside Earth).

    But then there’s another source of energy that nobody ever talks about: tidal power It works by converting the rise and fall of water with the tides into electrical energy. This energy ultimately comes from the moon orbiting around Earth, more precisely, its mechanical energy: The fact that the moon is distant from Earth is only because the universe expanded after the big bang. Had it not done this, the moon and earth would be located at the same location, and there would be no “orbiting” to extract energy out of :P


    I just made a post about this here





  • This diagram shows the LCOE (levelized cost of electricity) for various technologies - i.e. how much does one kWh of electricity cost if you divide the total number of generated kWh by the total cost of the power plant.

    “utility-scale solar” means large-scale flat-area solar parks

    But will Fusion ever be cheaper than solar?

    I doubt it; It’s not only about technology costs but also about advantages like decentralization. If you can generate your own electricity in your own back-yard, you’re much more independent than if you’re dependent on large-scale fusion power. Because that will necessarily be very large-scale and centralized because nobody can set up a fusion reactor in their own back yard.













  • downvoting because it’s not really true what you said. sure there’s always exceptions in biology that don’t fit into the species concept, but i dare say for lots of living beings, including practically all eukaryotic organisms, with very few exceptions, it’s a good categorization scheme.

    the exceptions you mentioned (asexual reproduction; edge cases where interbreeding is difficult but not impossible) are the exception, not the rule. that doesn’t make the rule meaningless though.



  • Koreans believe fans to be dangerous to use while sleeping

    tbf i believe that too (but about ACs and not fans) and i’m not korean. the reason i believe this is because of my real-life experiences. When AC is running, it typically gives me the sensation that the air it gives off is not just cold, but creepy cold, like an iron rod is not just hard, but hard enough to smash somebody’s skull with it. The same intensity is the coldness from the typical ACs that i’ve experienced. At least some of them.