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Thread: Physics talk

  1. #181
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    Told ya it was gonna get silly.

    Anyhoo, about the tyre slipping. It would certainly be doing that, if it didn't have any 'give'. The tyre is bendy, so that the rubber at the outer edge of the contact patch, although part of a smaller radius relative to the center, distorts to save from being dragged across the road surface....I think.

    Funny thing about physics aye, Dave is learning it backwards to my understanding.

    Someone like me, (prolly a touch more cleverer, but any observer is equal at this point), observed some shit happening and thought to himself. "I wonder how the fuck that works"? (This is where the not so clever guys like me become less equal). Then proceeded to work backwards from the result to factor as many forces as he could to get a theory. Now, we knew the result at the start (we're all equal again), but Dave (or anyone else reading what was found), has learned the forces at work, and come up with a tyre that gets smaller the faster it spins, (they can't be as bloody clever as they think either). Weeeeeeeeee, round and round we go!

  2. #182
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    Then there was Quantum physics, which kind of turns this whole conversation on it's head.


    Let me know when you guys solve the ninth chevron....
    "It is by will alone I set my mind in motion"



  3. #183
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    Quote Originally Posted by GTRMAN View Post
    Then there was Quantum physics, which kind of turns this whole conversation on it's head.


    Let me know when you guys solve the ninth chevron....
    The first one is in texas. Travel north from it on the main highway, and count them till you get to nine.

    You're welcome.

  4. #184
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    Quote Originally Posted by Drew View Post
    Now, we knew the result at the start (we're all equal again), but Dave (or anyone else reading what was found), has learned the forces at work, and come up with a tyre that gets smaller the faster it spins, (they can't be as bloody clever as they think either). Weeeeeeeeee, round and round we go!
    To be fair though, in this case it was more to do with the denial of centrifugal force than a fault with the textbooks data.

    And the times round we go the closer we get, right?
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  5. #185
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    Quote Originally Posted by bogan View Post
    To be fair though, in this case it was more to do with the denial of centrifugal force than a fault with the textbooks data.

    And the times round we go the closer we get, right?
    It is an annoying term, (centrifugal force), and we would all be better off if the prick that came up with it had simply given it a little bit more thought at the simple level, before galavanting off with pages of bloody mathmatical giberish as to how it can be measured.

    The formula Dave is working to might not be wrong, it is clearly incomplete though.

  6. #186
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    Quote Originally Posted by Drew View Post
    It is an annoying term, (centrifugal force), and we would all be better off if the prick that came up with it had simply given it a little bit more thought at the simple level, before galavanting off with pages of bloody mathmatical giberish as to how it can be measured.

    The formula Dave is working to might not be wrong, it is clearly incomplete though.
    nah its a great term that represents what normal people observe and sums several more complicated real forces together. Just like speed isn't real but is a simple relative term.
    Great minds discuss ideas, average minds discuss events, small minds discuss people. --- Unknown sage

  7. #187
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    Quote Originally Posted by oneofsix View Post
    nah its a great term that represents what normal people observe and sums several more complicated real forces together. Just like speed isn't real but is a simple relative term.
    Perhaps, but we all get taught now that it doesn't exist. The reality is simple enough, yet people still call momentum, centrifugal force. To add insult to injury, they fuck it up and pronounce it centrifical.

  8. #188
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    Quote Originally Posted by Drew View Post
    Perhaps, but we all get taught now that it doesn't exist. The reality is simple enough, yet people still call momentum, centrifugal force. To add insult to injury, they fuck it up and pronounce it centrifical.
    Nah I left school before it got to that stage and what you mean its not centrifical?
    Great minds discuss ideas, average minds discuss events, small minds discuss people. --- Unknown sage

  9. #189
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    Quote Originally Posted by oneofsix View Post
    Nah I left school before it got to that stage and what you mean its not centrifical?
    Fifth form physics, was the only reason I stayed the whole year. Loved that shit, but found out at sixth form level, it requires a smarterer person than me.

  10. #190
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    I once corrected someone about centrifugal on another forum and got 5 pages of bitching, moaning and name calling, so whenever I read it on here I just ignore it, kiwibiker is a particularly volatile atmosphere when it comes to physics and knowledge, I think it's the cross section of society who're drawn to motorcycles, but I'm not a psychologist (ducatilover is right though, I did psyc104 last year, fuck there's some tail in that paper ) so I can't say what it is exactly.

    I've read centrifugal on here heaps, I was going to post about it in that "stupid shit you've over heard in kiwibiker/motorcycling" thread but knew better of it, another guy in another thread was sharning about how centrifugal force makes the ride height of his blackbird come up, ignored it, cause I knew it'd result in 5 pages of bitching and name calling.

    Looks like my hypothesis was right.

    Does anyone know what causes (or caused) the static and noise you see on a detuned TV and hear on a radio between stations?

  11. #191
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    Quote Originally Posted by Dave- View Post
    I once corrected someone about centrifugal on another forum and got 5 pages of bitching, moaning and name calling, so whenever I read it on here I just ignore it, kiwibiker is a particularly volatile atmosphere when it comes to physics and knowledge, I th................................................ ..>>>
    remember original post says ( centrifugal growth ).

    I understand the exit line of an object that leaves a rotating orbit is straight and leaves at the angle it was last travelling.

    But this would also indicate that seeing the angle is in a percentage away from the centre then the result of a tire that is more likely to expand out due to the air within having almost no ability to prevent it as long as the pressures stay the same ( exclude heat for the moment )

    The side wall of the tire will resist the angle away force because trying to twist the rubber in that direction is very hard but for it to become thinner and taller isnt hard at all.

    Newer tyres with steel belts will limit the growth. Lets say 2% as an example where an older ply tire isnt as stiff and the effect maybe be 5%.

    tyre manufactures do what they can to limit the effects to provide as constant a shape as possible but cant remove centrifugal growth 100% due to the air content within the tyre unless they make solid rubber tires (airless).
    I have evolved as a KB member.Now nothing I say should be taken seriously.

  12. #192
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    Quote Originally Posted by Dave- View Post
    I once corrected someone about centrifugal on another forum and got 5 pages of bitching, moaning and name calling, so whenever I read it on here I just ignore it, kiwibiker is a particularly volatile atmosphere when it comes to physics and knowledge, I think it's the cross section of society who're drawn to motorcycles, but I'm not a psychologist (ducatilover is right though, I did psyc104 last year, fuck there's some tail in that paper ) so I can't say what it is exactly.

    I've read centrifugal on here heaps, I was going to post about it in that "stupid shit you've over heard in kiwibiker/motorcycling" thread but knew better of it, another guy in another thread was sharning about how centrifugal force makes the ride height of his blackbird come up, ignored it, cause I knew it'd result in 5 pages of bitching and name calling.

    Looks like my hypothesis was right.

    Does anyone know what causes (or caused) the static and noise you see on a detuned TV and hear on a radio between stations?
    The Blackbird guy deserved to be told he was a fuckin moron, and to go have his shock serviced.

    Hmmmm, the static. Radio noise caused be electrons bouncing around in everything? That's about as random as I can dream up short term. Gimme a box of Heiuneken, and I'll come up with something most folk would believe.

  13. #193
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    I love the smell of twin V16's in the morning..

  14. #194
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    Hmmmmm, how come we don't think that gravity has an effect on atomic power source, instead of time.

    It is a small leap to say form that experiment, that time has mass of some sort (if we don't think that atoms are effected by gravity instead of time), that can be altered. Soooooo, how come time travel doesn't get invented? Chocolate fish for the first person dumb enough to say "yet" about the invention of time travel.

    Personally, I think that the atomic clock being effected by the different gravity. Ya know, since atoms work kinda the same and planets with orbits and shit. But I'm no physicist, one of those cunts prolly thought of why my suggestion is stupid.

  15. #195
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    Quote Originally Posted by Drew View Post
    Hmmmmm, how come we don't think that gravity has an effect on atomic power source, instead of time.

    It is a small leap to say form that experiment, that time has mass of some sort (if we don't think that atoms are effected by gravity instead of time), that can be altered. Soooooo, how come time travel doesn't get invented? Chocolate fish for the first person dumb enough to say "yet" about the invention of time travel.

    Personally, I think that the atomic clock being effected by the different gravity. Ya know, since atoms work kinda the same and planets with orbits and shit. But I'm no physicist, one of those cunts prolly thought of why my suggestion is stupid.
    Predictability is the simple answer, the velocity-time based corrections used in the GPS system work. So the boffin's theories work there, and there would certainly be gravity differences too, so since they haven't accounted for those it must not have an effect.

    The theory is mass does pile up at relativistic speeds, I guess in a similar way to the distance change, the apparent mass does too. But I'm not sure how you could go back the other way, antimatter maybe? Someones bound to figure it out eventually right
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

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