• Dasus@lemmy.world
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    4 hours ago

    Again with this propaganda bullshit. Don’t you people get tired of swallowing Putler’s cum?

  • ikidd@lemmy.world
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    9 hours ago

    Jesus fuck, Russia can barely build a coal-fired plant in Moscow these days. They’re barely holding their own against a country they invaded that had virtually no preparation for being invaded because they thought a treaty protected them, so a bunch of farmers and housewives took up arms.

    Good fucking luck, Vlad. Russia is a country of drunks and weaklings that can’t tie their own shoes and has been embarassed on the international stage since the 19th century. You’re a joke country that happens to have nuclear weapons, it’s like an autistic child with a molotov cocktail.

    • Cloudstash@lemmy.world
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      10 hours ago

      There is clearly a difference in peoples understanding of the general ways in west compared to east blocks.

  • gandalf_der_12te@discuss.tchncs.de
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    15 hours ago

    There’s only two sources of power on other planets/outer space, and that is nuclear and solar.

    Wind and water and biomass and geothermal and fossil fuels are out of the question, because of lack of said things or lack of oxygen to burn anything.

    That being said, “nuclear” only works if it’s steady-state and does not use water/air input. That excludes steam engines and such, and basically only leaves RTGs (Radioisotope Thermoelectric Generator).

    These are solid-state devices (meaning they have no moving parts) and convert the heat directly into electricity using TEGs (Thermoelectric Generator). They don’t need water or air input.

    RTGs have an overall fuel efficiency of around 3-5%, meaning they translate around 3-5% of the radioactive decay heat of the nuclear material into electric power output.

    • FooBarrington@lemmy.world
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      6 hours ago

      Wait, why would wind and water be rare on other planets? Finding good places to do water-based renewables is probably gonna be difficult on most planets, but shouldn’t most planets with atmospheres have wind?

      • gandalf_der_12te@discuss.tchncs.de
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        4 hours ago

        yeah you’re right, air can be used on mars for example. (not wind though because wind is too weak at only 6 mbar atmospheric pressure, so it can barely move anything, and especially not a heavy rotary blade from a wind turbine.) but you could use the air to drive a stirling engine or sth, maybe, if you compress it first.

        but the engine has to be really low-maintenance, because repairing it is basically out of the question. repairing something very far away from any larger civilization is really difficult. and typically, things that have no moving parts (steady-state) are much less likely to break, so have much longer lifetimes.

    • chaosmarine92@reddthat.com
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      11 hours ago

      Reactors on earth are huge and built to run at 100% all the time because that’s the most economical way to do it. That is not a physics requirement, it’s just the most profitable for the current economic environment. You can design a reactor that can throttle output if you need to and many small modular reactors currently in the licensing approval process include this ability.

      Nevermind the fact that a “large” RTG only puts out about 100 watts of electricity and it’s nuclear fuel must be bred in reactors beforehand. There is only enough RTG fuel for maybe 20 large units on the planet right now.

      • gandalf_der_12te@discuss.tchncs.de
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        9 hours ago

        You can design a reactor that can throttle output if you need to

        yeah i’ve been thinking about these reactors a lot. problem is, to make a reactor regulatable like that, the material must be fissable. I.e. you can’t use PU-238 (which has a half-life of 87 years and is typically used in RTGs today), instead you’d use U-235 or sth (which is used in big nuclear reactors today). Problem is, that material is fissable (i.e. it undergoes chain reaction and runs at or just below criticality) and that is why you can build bombs out of it. Then, to bring such a reactor into space, you’d have to lift it off with a rocket, and there’s your problem: You’d have to transport (large amounts of) fissable material with a rocket across earth into the sky. And that’s how you provoke international nuclear conflict.

  • Goldholz @lemmy.blahaj.zone
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    21 hours ago

    Suuure russia. Ofc you are still a big mighty strong power that can beat up anyone especially all of NATO at once. Now here is cookie

  • Treczoks@lemmy.world
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    21 hours ago

    They also planned to overrun Ukraine in three days.

    Given the usual level of Russian corruption, they will notice when they want to draw power from that reactor that someone had already sold off the nuclear fuel and replaced the rods on the reactor with lead.

    • boonhet@sopuli.xyz
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      20 hours ago

      Ah, so I have a joke about Soviet corruption that applies to modern Russia too

      A brand new apartment building in Moscow collapses. Investigators are sent to interrogate the suspects.

      First they ask the sand. The sand defends itself: “How could you even suspect me? I’m so white, pure of heart!”

      Second they ask a brick. The brick replies: “Look at me, so red. An exemplary communist, how could you suspect me?”

      Last, they ask the cement. The cement goes: “Why are you blaming me? I wasn’t even there!”

    • UnderpantsWeevil@lemmy.world
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      1 day ago

      Russia’s got more of a space program than the US at this point. And they’ve continued to build and modernize their nuclear infrastructure, with the youngest plant coming online as recently as 2020 and seven in the pipe.

      They’re two industries the country has keep in relative working order while the rest of the economy was scrapped for parts back in the '90s/'00s.

      Insane to think they are in a position to colonize the moon when they’re quagmired in Ukraine and slaughtering hundreds of thousands of young men to keep at it. But they have the kit to try in a way no other county - except maybe China or India - could hope to.