Recent content by Brin

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    Is There an Analytic Solution for This Crazy ODE?

    Can anyone tell me if this ODE has an analytic solution? And if it does, how the heck might I go about it? \left(\frac{1}{y^{2}}\frac{dy}{dx}\right)^{2}-\frac{A}{y^{3}}-\frac{B}{y^{2}}=D
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    Why Does Applying Education in Daily Life Annoy Some People?

    Begging the Question! Get it right! Everyone keeps misusing this! http://begthequestion.info/ It doesn't mean to "raise the question," its a logical fallacy akin to "circular reason." So when you say "it begs the question," it normally doesn't, and what you mean is: "It raises the...
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    If we have a mass function of time i.e M(t) then F=(m.v') or F=(m.v)' and why ?

    Think about it, we have (because of the product rule), F=\frac{dp}{dt}=\frac{d}{dt}\left(mv\right)=m\frac{dv}{dt}+\frac{dm}{dt}v Normally, when we “Talk Newtonian” the mass is consant, so, \frac{dm}{dt}=0 and thus, F=m\frac{dv}{dt} Likewise, there might be situations where \frac{dv}{dt}=0...
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    Understanding Doppler Shift: Impact on Sound Waves and Airplane Movement

    The doppler effect is that thing where the cop car is driving towards you with its sirens blaring and it sounds high pitched, then as it drives away it is lower pitched. Or, when there is a man being swung around in a circle, and you are standing to the side watching. As you listen to him...
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    Ionizing a sphere till it explodes?

    I'm not entirely certain, but I would assume that any source you were to use to create the high potential would need to be higher potential and paradoxically small enough to supply the potential without discharging prematurely. Also, this is just a bad way to essentially "ground" your sphere...
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    Why aren't we heavier during the day?

    Also 0.4 Newtons is like 0.08 lbs! But hey, you should try an experiment. Get a scale that you can plug into your computer, set up a script to take a measurement of some mass every hour or something and then plot the results by time of day.
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    Ionizing a sphere till it explodes?

    I am just going to try to answer everything at the end. What you're talking about is ionizing the individual atoms in lead. Ionization occurs when the electrons are removed from the atoms, it's equal to the energy of the electron around the nucleus. So for Hydrogen its like -13.6 eV...
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    Time Machine will not be invented

    It's like you and your friend didn't read the thread. There different types of time travel theories, some fail some haven't been defeated yet. You haven't given any definitive reason as to why time travel in general is false. Note that the parallel universes version of time travel still...
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    Time Machine will not be invented

    I removed both yours and Magnethos's name, and even though we mention them here, the arguments above are irrelevant as to who I am talking to. I think they stand OK in isolation, though I look like a rambling mad man. I also suffer largely by going off topic. I hope the moderators will just see...
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    Time Machine will not be invented

    Yes, but huge sweeping changes to the geometry of space isn't what makes a "new way to understand." Very tiny changes to fundamental understanding has dramatic effects on the rest of physical understanding and by the very fact that what we do know is already really accurate, it is the case that...
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    Understanding Doppler Shift: Impact on Sound Waves and Airplane Movement

    Is "doppler effect" a good answer? If not, then do you know the doppler shift equation?
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    Time Machine will not be invented

    While I'm done arguing since I wanted to pull my hair out (I <3 DaveC), I thought ANYONE interested in a serious and reasonable discussion of time travel might find the following philosophy of physics article interesting: http://plato.stanford.edu/entries/time-travel-phys/ The Stanford...
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    Time Machine will not be invented

    I misread, you wrote "Quarks etc" I didn't mean to suggest that your whole argument was destroyed because of this. You could just pick some other fermion. Anyways, those were just notes which can be overcome, as you can see I permitted those and gave your idea a chance. I understood your idea...
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    Time Machine will not be invented

    Three notes: - Firstly, quarks don't exist in isolation. - Secondly, Pauli-E says two fermions can't occupy the same quantum state/have the same quantum numbers. So even if quarks existed in isolation, they wouldn't have any problems because of the Pauli principle since basically they'd have...
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    Why the moon looks bigger at the horizon

    Draw a picture, do the numbers. Read the thread. I'm done here.
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