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The Physics of Propulsion -- Comedy

Discussion in 'General' started by verticalspeed, Apr 18, 2014.

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This last post in this thread was made more than 31 days old.
  1. verticalspeed

    verticalspeed Apprentice Engineer

    Messages:
    171
    I was going to post this one in off-topic, but I think it will be better suited here.

    Basically, doing a lot of thinking about gravity-generator propulsion, using mass blocks to essentially create a warp drive. Basically, it isn't possible. Ash87 posted this picture in another thread,

    [​IMG]

    This makes me laugh, and it reminded me...........

    I thought I'd post a couple awesome examples of the physics of going fast, courtesy of our good friend Wile E. Coyote.......

    Outboard Motor:
    [​IMG]

    And, the fan powered sail:

    [​IMG]

    The Snow Skier:
    [​IMG]

    The Bow and Coyote:
    [​IMG]

    Ahhh, the worlds first science troll.
     
  2. BrickedKeyboard

    BrickedKeyboard Apprentice Engineer

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    372
    Actually, the snow skier and the bow/coyote would "work". Notice how the bow is wedged in that rock - strictly speaking, it's physically plausible. (even if it isn't possible to actually engineer a bow a coyote could draw strong enough to launch a coyote)

    Same with the snow skier - that's no different than spraying oil on the road ahead of your vehicle. It will work fine (until you run out of snow)
     
  3. JamesL86

    JamesL86 Senior Engineer

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    1,091
    I had a friend in my old D&D group that pulled a Wiley Coyote once. His character was a gnome and he had found this uber magic longbow. The DM ruled that he could use it as a "footbow". lol So the party had this cart thay we always trucked around and low and behold bandits jumped us. We all dismounted except for the gnome. He pulled out the his bow and laid down in the back of the cart aiming at the big bandit leader. However he rolled a 1 on his attack which in our group is called a fumble. For anyone that has ever played D&D with fumbles and fumble charts you may laugh now. The DM ruled that the gnome shot himself "Wiley Coyote Style" (his exact words) into the steel breastplate of the bandit leader knocking himself unconscious for literally the rest of the battle. We still laugh about that night EVERY SINGLE TIME we all get together.
     
  4. Draygo

    Draygo Senior Engineer

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    1,297
    The outboard motor would work because it will eject water from that tub.

    Once the water is gone, no more forward force.

    Not a good way to go fast.
     
  5. verticalspeed

    verticalspeed Apprentice Engineer

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    171
    Lol no.

    The snow skier would work, yeah..... It's still quite idiotic. Hilarious.
     
  6. Skeloton

    Skeloton Master Engineer

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    4,069
    Which is why sometimes, reality sucks.
     
  7. plaYer2k

    plaYer2k Master Engineer

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    3,160
    You want to talk in pictures? (No insult intended ;-D)
    [​IMG]

    Sorry, but this topic came up like 10-20 times within the last month in several threads, some even dedicated to only that topic like https://forums.keenswh.com/post/new-exploit-alcubierre-drive-6845247.

    The devs sure are aware of this and either accept it because they want to see the creative application of it, or they will fix it by simply adding a reaction force on gravity generators which will lead to a force annihilation when the gravity pushes both the mass and the gravity drive on the same entity or even if they are connected through rotors/landing gear.

    Edit:
    Anyway, since this thread seems to be meant for a collection of odd "fake physics" let me add some :p


    The ultimate elevator, we should get one now! :)
    [​IMG]

    The new reactor, warp drive.
    [​IMG]

    Since we got solar panels now .. the new ultimate SHIELD!!!1111!
    [​IMG]
     
  8. LFCavalcanti

    LFCavalcanti Senior Engineer

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    1,378
    OMG The cat theory!

    Schrödinger save us!

    To those who not understand:
    Cats always land after a fall with their feets on the ground. The same happen with bread, if you spreads butter on bread and for some reason it falls from your hands, it always land on the ground with the butter side. So... apply butter to the back of a cat and trow it into the air, then you'll have an entity not affected with gravity.(never do this your cat please!)
     
  9. xwhitemousex

    xwhitemousex Apprentice Engineer

    Messages:
    197
    Wouldn't it be easier, and less PETA taunting, to simply spread butter on both sides of the toast, then drop it?

    It would then land butter side down, but since both sides have butter, it would start to spin indefinitely and cause the same cat-toast effect, but at lower cost and faster installation/deployment rate (attaching toast to a cat takes time plus, depending on the personality of the cat, it poses an HSE risk to your hands being shredded).
     
  10. Vrmithrax

    Vrmithrax Senior Engineer

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    1,017
    While I applaud your ingenuity, removing the cat from the equation also removes the constant fun "rowwwrrRRRRRrrrrrr" sound effect the cat makes with the Cat-Butter engine. I suppose the silent catless version might be preferred by ninjas, however.
     
  11. Shiliski

    Shiliski Apprentice Engineer

    Messages:
    290
    The toast will just land on the side that has more butter. Or to put it in mathematical terms, the toast will land on the side that has the greatest Fbutter (or force caused by butter).

    Similarly, if two cats were tied together back to back, the bigger cat would land on its feet.

    Both the cat and toast are necessary for true anti-gravity. It's totally backed up by real science.

    EDIT:

    Joking aside, both the saying "toast will always land butter side down" and the saying "cats always land on their feet" have some amount of merit to them. Cats, when falling, instinctively prepare themselves for landing by twisting their body so that they land feet first. Buttered toast has an unbalanced center of gravity, due to the addition of the butter in the toast, so it's more likely to land butter-side down than butter-side up for the same reason that a weighted die is more likely to land on a particular side.

    It's also a lot more frustrating when toast lands butter-side down, since it's a bigger mess to clean up, so it sticks in the mind more than the alternative and thus people say that it "always" happens. Similarly, when a cat lands on its feet from an uncontrolled flight, it's more amazing since not every animal can do that, so it also sticks in the mind more.

    However, both of these things are probabilities and not absolutes, which is why we don't have true anti-gravity toast cats.
     
  12. THE_VB

    THE_VB Junior Engineer

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    511
    Damn, nigga, u right!
     
  13. Merinsan

    Merinsan Apprentice Engineer

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    209
    Technically yes.
    However the force of friction on the wheels would most likely be higher than the force generated by ejecting the water, meaning no movement.
    It'd be equivalent to trying to propel a car with an ion drive, although I don't know the exact numbers, I suspect the ion drive might be better.
     
  14. Xocliw

    Xocliw Public Relations Staff

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    2,615
    These things are genius, might have to try some of them out :thumb:. Loved the cat and buttered toast one.....
     
  15. LFCavalcanti

    LFCavalcanti Senior Engineer

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    1,378
    OMG!

    Are we really having a technical debate on the Cat/Butter Theory? :rof::rof::rof::rof:

    Where is the Physics Inquisition?
     
  16. Vero

    Vero Apprentice Engineer

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    149
    omg i love this
    [​IMG]
    so the question stands... what would happen if you remove the cat from the equation and just butter both sides of the toast??
     
  17. mastpayne

    mastpayne Senior Engineer

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    1,385
    A Paradox. Two membranes would touch, and the universe would end.
     
  18. verticalspeed

    verticalspeed Apprentice Engineer

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    171
    Lol. You guys rock.
     
  19. Vermillion

    Vermillion Senior Engineer

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    2,131
    Yeah, but what happens if you name the Cat "toast" and butter him?
     
  20. plaYer2k

    plaYer2k Master Engineer

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    3,160
    Yeah i agree with mastpayne, unless observed two perfectly equally buttered toasts would flip to any side concurrently and equally probable while interacting with each other. This causes gravity waves, which are already known from our gravity generators - used for the gravity drives as they actually 'sail' the gravity waves. Those gravity waves will over time meet the eigen oscillation of the universe causing the brans to oscillate and then touch ... the end of all existance :(
     
  21. Fhangrin

    Fhangrin Trainee Engineer

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    13
    Quite possibly the same thing that would happen if you found a piece of toast that looked like a cat.

    As one is being replaced with the other, we'd just experience the same issue that current gravity drives experience. An object is applying force on itself.

    One does not simply replace the cat or the toast. For true world destroying powers... You MUST have both. Accept no substitutes.
     
  22. JamesL86

    JamesL86 Senior Engineer

    Messages:
    1,091
    This might explain how I managed to break a motor by mounting two GGs on arms to either side while attaching the motor base to two mass blocks also on arms. :woot:
     
  23. Morbophobie

    Morbophobie Apprentice Engineer

    Messages:
    145
    Bah, cats too unrelialbe

    [​IMG]

    [​IMG]

    BTW

    Interesting topic: https://www.superconductors.org/INdex.htm
    You can not increase your altitude (that would break the law of conservation of energy) with it but it is a stable flying system.
     
  24. Vermillion

    Vermillion Senior Engineer

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    2,131
    It's been done before...
    [​IMG]
     
  25. SaturaxCZ

    SaturaxCZ Senior Engineer

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    1,718
    +1 for cat energy :D + pet/play with your cat can recharge suit beteries for sure :D
     
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