"IS WARP DRIVE POSSIBLE?" - A discussion

Discussion in 'Science and Technology' started by CLARK NOVA, May 21, 2020.

  1. publiusr

    publiusr Vice Admiral Admiral

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    NTR—done right—needs hydrogen...and everyone is a methalox guy now. Errr.

    Nuclear Thermal to get your crew to Mars, have it limp back unmanned with nuclear electric.

    Now, in terms of NEP. I wonder if you could use Radon...use that instead of helium for pressure...use it up coming back..
     
  2. Dryson

    Dryson Fleet Captain Fleet Captain

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    Perhaps hyper acceleration gates would be better to get around the solar system with.

    A much larger version of the magnetic railgun could possibly accelerate cargo containers and crew modules brought to the hyper acceleration gate via one of Musks reusable rockets.

    Less waste and money spent on fuel and component parts that can never be used again.
     
  3. Asbo Zaprudder

    Asbo Zaprudder Vice Admiral Admiral

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    Crewed modules? Well, ok, if you don't mind being turned into raspberry jam...
     
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  4. Dryson

    Dryson Fleet Captain Fleet Captain

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    The hyper accelerated gate would, in principal, be based on the Railgun.

    https://en.m.wikipedia.org/wiki/Railgun
    Space Based Railgun
    https://www.sciencetimes.com/articl...space-exploration-not-so-sci-fi-after-all.htm

    However, the electromagnetic railgun is still far from being capable of launching or propelling objects of larger mass like moon ores. The experiment only worked with small projectiles for now. Anything that is larger will require a complicated thermal management and a huge amount of electricity to reach hypervelocity. Wired explained that electromagnetic railgun uses electricity instead of the traditional chemical propellants.

    Another issue is the size of the electromagnetic railgun needed to successfully launch a space vehicle. Based on current prototypes, a 160-meter long mass driver is needed. This means a lot of resources and a significant amount of power. Only by then will the electromagnetic railgun breach the 5,300 miles per hour requirement for the escape velocity at the moon.

    Current makes the railgun behave as an electromagnet, creating a magnetic field inside the loop formed by the length of the rails up to the position of the armature. ... Although these speeds are possible, the heat generated from the propulsion of the object is enough to erode the rails rapidly.

    How can the heat generated be used to propel the object forward?

    Basically, like the gas tube of an M-16-A2 service rifle, the heat can be collected and then used to assist the railgun in propelling the cargo or crew pod.

    Heat is a form of energy. It is not a force. Any change in momentum is due to heat being absorbed by gas, which increases its kinetic energy, and hence the temperature of the gas.Dec 14, 2019

    Thus, gas injected into the firing chamber that absorbs the most heat possible would increase the kinetic energy potential when launching a cargo pod or crew pod.

     
    Last edited: Apr 6, 2021 at 4:21 PM
  5. Dryson

    Dryson Fleet Captain Fleet Captain

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    Alpha Point - All internal energy such as thermal, rotational, and internal potential energy contributes to the rest mass of an object. ... So, yes, a hot object has greater rest mass and would weigh more when measured, if a scale were sensitive enough.

    So basically a ship using plasma would be hot and create more mass due to the plasma and the plasma components being hot. The heat from the Sun and reflected light from the planets would also create heat against the hull of the ship the faster it traveled. Therefore the outside hull would need to be coated with an Ultra

    What about using Cold Fuel? Basically the idea would involve using atoms cooled to absolute zero, the temperature of space. Keeping the atoms Ultra Cold would generate considerable less heat that would add mass to the ship compared to a solid or liquid fuel which adds mass due to the heat that is present as a result of the state of matter that the fuel is in.

    But in theory, Ultra Cold atoms would suddenly excited, would move farther apart at a faster rate of velocity, but still not moving fast enough to generate heat. But how do we create a propulsive force using ultra cold atoms inside of a rocket nozzle?


    ****The faster a ship travels towards the speed of light, the more heat is generated, heat from the engine and possibly heat from interactions between gravitational fields and the ships hull along with encountering light photons and the heat a photon generates along with dust, would create more mass. More mass that could be the "infinite mass issue" often talked about.

    Thus keeping the hull of a ship ultra cold to reduce heat generated mass is another key to FTL.****
     
    Last edited: Apr 7, 2021 at 2:21 AM
  6. Asbo Zaprudder

    Asbo Zaprudder Vice Admiral Admiral

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    Manipulation of the space-time manifold seems like the approach most likely to succeed IMO. But, as I stated before, if it were possible, we'd already have more definitive proof of this through its use by aliens. Perhaps they're just keeping their distance until we make it through the great filter.
     
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  7. Santaman

    Santaman Vice Admiral Admiral

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    I really wonder what aliens would think of us, either totally hilarious or revolting or a combination of the two..
     
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  8. Asbo Zaprudder

    Asbo Zaprudder Vice Admiral Admiral

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    I'm thinking a cross between The Osbournes, Keeping Up With The Kardashians, Love Island, and The Truman Show.
     
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  9. Santaman

    Santaman Vice Admiral Admiral

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