• RNAi [he/him]
    ·
    3 years ago

    There's these things called "thermodynamic laws"...

    • garbage [none/use name,he/him]
      ·
      3 years ago

      what about hydraulics? i feel like there's probably a way to make water push a piston. i'm not extremely versed in thermodynamics except for a general gist, but if hydraulic fluid can be used to lift massive amounts of weight in a forklift, i feel that some genius could probably figure out a way to make it move a fucking piston.

      • RNAi [he/him]
        ·
        edit-2
        3 years ago

        Molecular hydrogen (H2) and molecular oxygen (O2) are more "energetic" than water (H2O). More exactly, their molecular bonds have more "stored energy" than the molecular bonds of water. When you mix the two they fucking explode and form water. Then, you can turn water into H2 and O2 again, but for it to happen you need the energy back. If you used it to move a piston, that water is gonna be water.

        Energy needs to come from somewhere.

        "Oh but the material of the 'water fuel cell' use Nanotechnology(TM) to split H2O into H2 and O2". Ajah, the only way for that to happen is the material providing the energy to "split" the water and then form the energetic bonds H-H and O=O. In that case the material would be the fuel, (and will of course be finite), not the water.

        "Oh but this nanomaterial is actually a catalyzer of the reaction of water splitting". Yes, that exists and is well known, but no matter how good the catalyzer is, you still need the energy back.

        • garbage [none/use name,he/him]
          ·
          3 years ago

          i'm really not enlightened to this kind of shit and you'll be wasting your time trying to explain it to me. but from my understanding, hydraulic fluid is locked into a tube. there is not much chemistry to it. all i know is that it can create a lot of pressure, enough to lift thousands of pounds.

          feel like someone smart could maybe be able to slowly release that pressure into moving pistons efficiently.

          • RNAi [he/him]
            ·
            edit-2
            3 years ago

            Yes, that's steam power, or just hidraulic transmission of force. Water and vapor are good to move energy, but you won't get energy from the molecules like you do with gasoline. Unless you make the atoms explode, but that's atomic energy. And it's particularly "un-practical" to get atomic energy from water.

            For example, the energy of a sea wave is just the water being moved by the wind, which is caused by the sun heating up the atmosphere unevenly, and the wind is actually just molecules distributing that thermal energy as evenly as possible.

            The energy of a river, is just water going downhill, "liberating" gravitational energy, again molecules distributing energy as evenly as possible. How did the water got up? It was heated and/or evaporated thanks to the sun and wind (aka the sun) and rained on top of a mountain. So the source of energy is again the sun. Why not saying gravity is the source of energy? Cuz gravity is a really fucking weird thing and you might think the smart nerds have it figured it out, but you go to college and in every new Physics semester you keep learning the smart nerds actually don't have it figured it out completely, FUCKING SHIT MAN. But anyways, gravity is not the source of energy.

      • KobaCumTribute [she/her]
        ·
        3 years ago

        If you heat it up a lot so it turns to steam, the expansion absolutely can move pistons. That's how coal fueled trains work: they boil water by burning coal and the steam moves pistons.

        • garbage [none/use name,he/him]
          ·
          3 years ago

          water comes out the tap though. fo free. even if you only get like 3 miles a gallon or so, it seems like it would be more efficient than having to invade and colonize countries, go to war, drill into the earth, and destroy the atmosphere... right?

      • Frank [he/him, he/him]
        ·
        3 years ago

        i feel like there’s probably a way to make water push a piston.

        Okay yes, but you can't carry an entire river around just to run your car off of.

        There is a thing where solar power is used to run a pump and water is pumped uphill or in to a tank during the day. Then when the sun is off the water is allowed to flow downhill over a hydroelectric generator, allowing a system that provides steady power all day and night without relying on really complicated shit like batteries.