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Science is iterative

⁨623⁩ ⁨likes⁩

Submitted ⁨⁨1⁩ ⁨week⁩ ago⁩ by ⁨fossilesque@mander.xyz⁩ to ⁨science_memes@mander.xyz⁩

https://mander.xyz/pictrs/image/8d810f02-85a8-4b6a-9bb5-a18ac04bc81d.jpeg

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Comments

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  • call_me_xale@lemmy.zip ⁨1⁩ ⁨week⁩ ago

    Pssh, you guys are still on gravity-fusion? My ship has magnetically-bottled antihydrogen, which is carefully fed into a specialized reaction vessel that annihilates it with ordinary hydrogen to produce incredible amounts of heat…

    …which is then used to boil water and force the steam through a turbine.

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    • panda_abyss@lemmy.ca ⁨1⁩ ⁨week⁩ ago

      I just put some saddles on this bacteria that eats photons.

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      • Kellenved@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

        Discworld ftl tech right here

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    • Chakravanti@monero.town ⁨6⁩ ⁨days⁩ ago

      Antitron

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      • VinegarChunks@lemmus.org ⁨5⁩ ⁨days⁩ ago

        Antïron

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  • TheFogan@programming.dev ⁨1⁩ ⁨week⁩ ago

    I invented a new power generation method!

    Amazing, is it actually new, or is it steam again

    … it’s steam again.

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    • rockerface@lemmy.cafe ⁨1⁩ ⁨week⁩ ago

      “It’s a good power generation method, sir”

      looks inside

      boiling water

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      • lime@feddit.nu ⁨1⁩ ⁨week⁩ ago

        > ask if new generator is spooky or wet
        > they don’t understand > show the diagram > “it’s a good generator mx”
        > go inside
        > it’s wet

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  • Blackout@fedia.io ⁨1⁩ ⁨week⁩ ago

    It's like how evolution's perfect form is a crab. Energy's perfect form is spicy water bois

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    • rockerface@lemmy.cafe ⁨1⁩ ⁨week⁩ ago

      Fun fact: crabs are only the underwater peak of evolution. Land mammals seem to converge into anteaters, and plants into trees.

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      • ShinkanTrain@lemmy.ml ⁨1⁩ ⁨week⁩ ago

        If mammals want to survive the next 100 million years we need to see the writing on the wall and evolve into crabeaters

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      • W98BSoD@lemmy.dbzer0.com ⁨6⁩ ⁨days⁩ ago

        Image

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      • drcobaltjedi@programming.dev ⁨6⁩ ⁨days⁩ ago

        I mean theres been like 15 things that are dolphin shaped throughout history.

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      • sparkyshocks@lemmy.zip ⁨5⁩ ⁨days⁩ ago

        Land mammals seem to converge into anteaters

        Hold on, let’s give it some time to see if sea mammals will, too.

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    • kittenzrulz123@lemmy.dbzer0.com ⁨6⁩ ⁨days⁩ ago

      Its like transportations perfect form is trains

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  • Blackmist@feddit.uk ⁨6⁩ ⁨days⁩ ago

    Image

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  • blimthepixie@lemmy.dbzer0.com ⁨1⁩ ⁨week⁩ ago

    Do solar panels operate in this way?

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    • WalrusDragonOnABike@reddthat.com ⁨1⁩ ⁨week⁩ ago

      Depends on the type of solar panel. PV, no. Otherwise, yes.

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    • oxideseven@lemmy.ca ⁨1⁩ ⁨week⁩ ago

      Solar, wind, tidal, RTG, DEC fusion are all options without steam

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      • ayyy@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

        Does hydropower count as cold steam?

        Well I guess all wind power is also steam at a very low concentration heated by a fusion reaction.

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      • jol@discuss.tchncs.de ⁨1⁩ ⁨week⁩ ago

        Wind and tidal is still just turbines.

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    • fullsquare@awful.systems ⁨6⁩ ⁨days⁩ ago

      technically pv panels are also heat engines. this is why they need cooling

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  • jpablo68@infosec.pub ⁨6⁩ ⁨days⁩ ago

    I don’t know why we don’t do this with internal combustion engines (Gasoline or Diesel) all that heat generated by the motor, wasted, it could be used to generate more electricity…

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    • xthexder@l.sw0.com ⁨6⁩ ⁨days⁩ ago

      We actually do. F1 engine’s have something called the MGU-H that recovers exhaust gas energy and turns it into electricity that can be used to recharge the hybrid system: racecar-engineering.com/…/tech-explained-formula-…

      Technically any turbocharger is doing the same thing except it’s hooked up to a compressor for the intake air instead of a generator.

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      • EddoWagt@feddit.nl ⁨6⁩ ⁨days⁩ ago

        They don’t have that anymore as it was deemed not relevant enough for road use

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    • Emi@ani.social ⁨6⁩ ⁨days⁩ ago

      There were some cars that used Stirling engine instead of internal combustion ones.

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    • captain_aggravated@sh.itjust.works ⁨5⁩ ⁨days⁩ ago

      I’m aware of some large ships that do that, using either a sterling engine or maybe even a steam engine to put waste engine heat to use.

      I have heard of a 6-stroke engine. The idea is, intake compression power exhaust steam exhaust. The four strokes of the Otto or Diesel cycle happen, and then hot high pressure water is injected directly into the cylinder which flashes to steam and expands, pushing the piston, and then another exhaust stroke lets it out. This puts much of the waste heat out through the crankshaft rather than wasting it via radiator. It’s not without its problems though.

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    • megopie@beehaw.org ⁨5⁩ ⁨days⁩ ago

      Thermo dynamics, in short.

      In long, because adding some heat recovery system to the engine block would mean decreasing the cooling efficiency of that block, thus making the block hotter, and decreasing the efficiency of the engine. Since the engine makes power based on the differential of heat/pressure from the top of the stroke and the bottom of the stroke. If you make the system hotter, then less energy can be extracted per unit of heat produced from burning fuel. Any energy generation from the waste heat of the block would be offset by efficiency losses in the engine it’s self.

      Now, most engines don’t actually extract all the energy they could from that differential, which is why turbo chargers are a thing. They use excess heat in the gas exhausted out of the block, expand it to ambient pressure and temperature over a turbine, that turbine then runs a compressor, and that compressor raises the pressure at the air intake. More air entering the engine in the same volume allows for more fuel, thus increasing the energy density of the charge, increasing the differential in heat between the top and bottom stroke, increasing power and/or efficiency depending on it’s tuning. But that’s not utilizing heat from the engine block, but heat in the exhaust.

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  • Kolanaki@pawb.social ⁨6⁩ ⁨days⁩ ago

    You’d think with all the rats used for labratory testing, we’d have power generated by mice running on wheels.

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    • xep@discuss.online ⁨6⁩ ⁨days⁩ ago

      Still kinda using water to turn a turbine, if you squint really hard.

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    • Corkyskog@sh.itjust.works ⁨5⁩ ⁨days⁩ ago

      How many calories does a rat burn everyday though? Instead lets outfit humans with exoskeletons, and instead of assisting the human, it will do the opposite. Their extra energy gets fed into the suit to create electricity. Could also sell it as weight loss thing simultaneously.

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  • Tollana1234567@lemmy.today ⁨6⁩ ⁨days⁩ ago

    most FTL in scifi surpassed the use of fusion to power thier ships and only used a supplemental power, they went with anti-matter, and vacumn energy

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  • NewSocialWhoDis@lemmy.zip ⁨6⁩ ⁨days⁩ ago

    Gawd I love this meme.

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  • wrinkledoo@sh.itjust.works ⁨5⁩ ⁨days⁩ ago

    Space ship science works differently. You don’t need “power” except for the computers, you just need “thrust” and any fuel you use is likely insufficient for long term travel.

    So we sailing the solar seas bois.(Literally, solar sails) unless warp drives are somehow real.*

    *Am not space boat science man.

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  • janus2@lemmy.zip ⁨6⁩ ⁨days⁩ ago

    ok i can see the steam turbine powering onboard electrical but explain me how the fuck you’re doing space propulsion with steam

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    • BastingChemina@slrpnk.net ⁨6⁩ ⁨days⁩ ago

      Ion thrusters are an example of electricity used for space propulsion.

      In ion thrusters electricity is used to create a magnetic field that accelerate the propellant particles at very high speed. This way the propellant of used much more efficiently.

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      • janus2@lemmy.zip ⁨6⁩ ⁨days⁩ ago

        ooooooh

        well that’s pretty neat.

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      • DahGangalang@infosec.pub ⁨6⁩ ⁨days⁩ ago

        So skimming through the wiki article, it sounds like it it’s still “throw something out the back” to generate thrust, which is largely the same problem as the Wall-E with a fire extinguisher problem another commenter made.

        Ion Thrusters sound significantly more efficient (in terms of velocity change vs fuel), but do I have the right idea on that?

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    • huf@hexbear.net ⁨6⁩ ⁨days⁩ ago

      you use the steam to turn a spacetime-fabric-propeller which can gain traction on vacuum itself and propel the ship. simple stuff.

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  • SaveTheTuaHawk@lemmy.ca ⁨6⁩ ⁨days⁩ ago

    So we figured out the most efficient way to generate electricity 100 years ago, and you guys just whinge and want something new.

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    • Sabata11792@ani.social ⁨5⁩ ⁨days⁩ ago

      most efficient

      Ehhh, good enough.

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  • Kowowow@lemmy.ca ⁨1⁩ ⁨week⁩ ago

    2026 we put a helicopter on mars and still no power crystals

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  • Folstar@lemmus.org ⁨5⁩ ⁨days⁩ ago

    We’re already well on the way to having supercritical CO2 generators. Sure, it’s still a steam engine, but supercritical CO2 makes it sound so much sciencier.

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  • gravitas_deficiency@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

    It’s to boil water again, isn’t it

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  • herseycokguzelolacak@lemmy.ml ⁨6⁩ ⁨days⁩ ago

    it is always a steam turbine :)

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  • Someonelol@lemmy.dbzer0.com ⁨6⁩ ⁨days⁩ ago

    Go to 8:56 here: m.youtube.com/watch?v=_bDXXWQxK38

    There’s still hope we can move past steam generation.

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