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  1. #21
    Chief Master Sergeant
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    Default Re: Just how did it fly?

    You could fart in space and that would create enough thrust to start you moving would it not? lol.

    Would you actually need a powerful engine or anti-gravity device in space in order to move though I thought maybe it would be possible to create something that when activated would "vibrate" the ship slightly and in a non sick feeling way cause it to wiggle and jiggle just enough to create some type of thrust causing it to move through space. Or vibrating panels in different areas if you activated 1 it would cause you to turn ect.

    I don't know I'm no scientist

  2. #22
    Lieutenant General thekillman's Avatar
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    Default Re: Just how did it fly?

    Quote Originally Posted by maxrpg View Post
    You could fart in space and that would create enough thrust to start you moving would it not? lol.

    Would you actually need a powerful engine or anti-gravity device in space in order to move though I thought maybe it would be possible to create something that when activated would "vibrate" the ship slightly and in a non sick feeling way cause it to wiggle and jiggle just enough to create some type of thrust causing it to move through space. Or vibrating panels in different areas if you activated 1 it would cause you to turn ect.

    I don't know I'm no scientist
    Anything vibrating would move the ship up and down by exactly the same amount. Or: the ship itself would start to vibrate, although it's massive enough that you'll probably never notice aside from the one corridor where the vibrating plate is in.

    Not sure if you understand trigonometric, but a vibration is a sinus wave and the average is 0.



    In space (generally), the whole "every action has an equal and opposite reaction" applies the most obvious. If you farted while strapped to the bottom of Atlantis, the entire city would move. Because the city is so massive, it would only move the tiniest of bits and you certainly would not notice. However, if the entire bottom was filled with farting people that continuously farted, you might eventually move the thing from a, say, earth orbit to mars orbit. The effect would kind of be the same as an ion engine: superlow thrust but continuous thrust.


    Would you actually need a powerful engine or anti-gravity device in space in order to move though
    While i am pretty certain the engines on Atlantis are big enough, i doubt the city could ever store enough fuel (even if it used naquahdah as fuel and ReMass) and Reaction Mass to move it anywhere.

  3. #23
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    Default Re: Just how did it fly?

    lol nope I don't know much about science I was just trying to think of other ways you may possibly be able to move an object without "Fuel" type thrust engines.

    What about sound waves?. Giant speakers pointing outwards or possibly hanging giant speakers outside the ship blasting sound waves at the ship and thus thrusting it forward perhaps :\ ..a bit of Meat Loaf of something like that should be loud enough lol

  4. #24
    Lieutenant General thekillman's Avatar
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    Default Re: Just how did it fly?

    Quote Originally Posted by maxrpg View Post
    What about sound waves?. Giant speakers pointing outwards or possibly hanging giant speakers outside the ship blasting sound waves at the ship and thus thrusting it forward perhaps :\ ..a bit of Meat Loaf of something like that should be loud enough lol
    ha ha. it would work if there was air in space


    The only non-fuel ways are using an external power source.

    e.g: solar sail, laser-beamed power, bussard ramscoop, well that's about it.

  5. #25

    Default Re: Just how did it fly?

    My best guess is the anti-gravity rays Burroughs mentioned in his stories. Then again, he did not explain those very well either.

  6. #26
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    Default Re: Just how did it fly?

    Well the ancients made stargates, city-ships, ZPMs, drones etc etc. I get a feeling it wouldn't be impossible to alter the thrust of different parts of the stardrive to somehow get some kind of turning system

  7. #27
    Lieutenant General thekillman's Avatar
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    Default Re: Just how did it fly?

    Quote Originally Posted by SuperCoolPhantom View Post
    Well the ancients made stargates, city-ships, ZPMs, drones etc etc. I get a feeling it wouldn't be impossible to alter the thrust of different parts of the stardrive to somehow get some kind of turning system
    Doing this is literally first-years dynamics. It's super-easy to do and most certainly does not require technology on the level of the Ancients

  8. #28
    Staff Sergeant rgritt's Avatar
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    Default Re: Just how did it fly?

    Magic.

  9. #29
    Second Lieutenant Energizer_Vs_ZPM's Avatar
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    Default Re: Just how did it fly?

    Something else troubles me about all of this though..

    Atlantis is powered by 3 ZPMs yes? Yet the hologram room is said to drain a ton of power - which is a tiny little room at the top of the central tower.

    Right, so we know that drains lots and lots of power from the ZPMs. How on earth in that case, could just 3 ZPMs not only power but propel a huge city weighing millions of tons like Atlantis? It makes no sense!

    So I figured the engines may possibly use some sort of fuel and the ZPMs are simply used for flight control of the engines instead. Oh but hang on.. Atlantis was almost depleted of drones so the same would make sense for the star drive fuel too. Then we also see Atlantis take off rigged to the underwater power station via a cable. So it clearly uses electrical energy to power the star drive somehow.

    So how on earth did 3 little ZPMs manage to take a huge great starship into orbit and hyperspace but have trouble powering a hologram?

    I'm confused!

  10. #30
    Lieutenant General thekillman's Avatar
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    Default Re: Just how did it fly?

    Quote Originally Posted by Energizer_Vs_ZPM View Post
    Something else troubles me about all of this though..

    (..)
    I'm confused!
    Well you are right, in that it makes no sense the holo-room takes so much power. I suspect it has more to do with what's going ON with that room. Essentially, when it's on, a big supercomputer is busy interpreting the user's request, processing them and pulling up data.

    However, the holoroom does not nearly require a ZPM: I think the "load of power" is mostly a case of being easily distinguished in the power grid as being more draining that most normal systems (i.e. the Gate Shield).

    When it comes to propelling a ship like that, it actually does not require that much energy at all. Certainly not enough energy to blow up 3 Earths.

  11. #31
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    Default Re: Just how did it fly?

    Quote Originally Posted by Energizer_Vs_ZPM View Post
    I'm curious about how Atlantis could actually fly and manouvere.

    Look at this (although I think it's the Asurans ship it's the same design and principle):


    It clearly has those bad boy engines underneath each pier supporting arm and we all know that Atlantis flys upwards when taking off and also when flying through space / hyperspace.

    In the episode where Atlantis leaves Lantia (I think thats the planets name lol) Atlantis drops out of hyperspace and then continues moving sideways. This indicates that it has somehow turned itself somehow.

    Now we only see the engine outlets under the piers. We don't see any other sorts of thrusters anywhere and yet Atlantis is able to manouvere itself round 180 degrees in orbit after exiting hyperspace in order to land on a new planet. Additionally it would also need some sort of upwards firing thursters to act as brakes yet we never see this either.

    On one pier we see what look like super huge rudders like you'd find on a boat or plane but in space those would be useless (especially when flying upwards lol).

    So.. just how did Atlantis perform it's manouveres?
    Perhaps they use the modified versions of the artificial gravity gens and VERY BIG inertial dampeners so they need very little thrust to rotate the ship an thus small thrusters

  12. #32
    Captain Xaeden's Avatar
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    Default Re: Just how did it fly?

    Quote Originally Posted by Energizer_Vs_ZPM View Post
    Atlantis is powered by 3 ZPMs yes? Yet the hologram room is said to drain a ton of power - which is a tiny little room at the top of the central tower.

    Right, so we know that drains lots and lots of power from the ZPMs. How on earth in that case, could just 3 ZPMs not only power but propel a huge city weighing millions of tons like Atlantis? It makes no sense!
    To be fair, it was said to be "a bit of a power hog" not that it uses lots and lots of power. If you only have one ZPM that you need to make last because you can't replace it and all the operations that can be achieved in the hologram room can be achieved through the city's workstations (which don't use much energy at all) then you're likely to see the larger energy usage of the hologram room as an unnecessary waste.

    That doesn't mean it's a power hog like engines and shields are a power hog. In the grand scheme of things it's probably unlikely to matter very much unless the ZPM is just about to fail and keeping it and other non-essential systems means the difference between hours of extra shield time. However, when every bit of ZPM power is precious because you may never be able to replace it then any superfluous energy usage seems like a big deal and I think that was all Weir was trying to say with that line. I wouldn't read into it as an attempt to compare its energy usage to the city's major energy sinks.
    Last edited by Xaeden; March 25th, 2016 at 03:31 PM.

  13. #33
    Chief Master Sergeant
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    Default Re: Just how did it fly?

    you have to remember three things with space, asteroids are flying around more or less to ancient trajectories gained from the early universe, if you stop one in space it more or less stays still until gravity from other rocks pulls italong slowly at first then faster plus collisions from star dust and other particles pushing it all over causing it to spin and move chaotically, solar winds is a pretty big power in some areas and even in our solar system shapes the destiny of most asteroids to a degree, it creates our auroras after all,

    secondly the star drive is a bunch of spread out engines they are right,you could use them in different firing velocities, fire one at 10 percent power and hte ship will start spinning unless your near a planet, fire its opposite engine at 8 to 9 percent and you should come pretty close to nearly slowing down the ship perfectly if your approaching a planet, it may still have a slight drifting spin but the gravity of hte planet should allow it to work out perfectly before you lightly tap the engines so it comes in slowly and proper right side up, the engines carry it off world, so landing is less strenious though potentially more wasteful of energy if you dont wana do it slowly then you come crashing down and only fire the engines to stabilize it right side up and then suddenly full power them near the landing zone, its still sort of more or less the same energy but you waste less time flying in terms of anti gravity/innertia dampeners etc...

    finally the hologram may have used more power, but a ancient was hiding thier, and may have consumed the energy to force the city to surface sooner or may have required consuming it to please the other ancients so it seemed the hologram room was just a computer hologram and to reduce how often she had to respond to them so they didnttake all her time telling them stories and research and war references, she had to make sure they didnt rely on her more then a bit so the others wouldnt get up set that she was asked and told them how to build zpms and ascension devices to alter thier genome etc or even where the atlantis particle reassembly room was so they could just create anything, she had to make sure they used the computers and thier own minds and skills so they would evolve and learn on thier own powers, not as minions or servants of the ancients, they were very strict with helping the unascended humans, espeicially after that one world was destroyed by orlan

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