Recent content by stingray78

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    Charges moving along an electric field:

    Tey don't do anything. Check some quantum mechanics maybe an electric field strong enough over a neutron can split it into more fundamental particles with charge different than zero
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    The red shift - what does it indicate?

    Red shift: http://www.tubepolis.com/play.php?q=red%20shift&title=The%2Bdoppler%2Beffect%2Band%2Bred%2Bshift-a%2Bbeginners%2Bguide&id=Man9ulEYSgk&img=http%253A%252F%252Fi.ytimg.com%252Fvi%252FMan9ulEYSgk%252Fdefault.jpg
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    Evaluating Integral Involving Arcsin, Arccos, and Arctan

    Calculate its rotational of the vectorial function, if its zero then try calculating the singularities inside C(where the function is infinite) Then isolate the singularities with circles with radius h with h going to zero. Evaluate the line integrals of those circles and there is your awnser...
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    Does the Universe have a centre?

    Ask the experts: nice video explaining the center of the universe http://www.tubepolis.com/play.php?q=universe%20has%20a%20center&title=The%2BUniverse%2BHas%2BNo%2BCenter...%2Band%2BYoure%2BNot%2BThere&engine=1&id=9kjvXkoDCJ0&img=http%253A%252F%252Fi.ytimg.com%252Fvi%252F9kjvXkoDCJ0%252Fdefault.jpg
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    Paying someone to cut your hair

    Jajaja check this docu about barbershops: http://www.tubepolis.com/play.php?q=barbershops&title=Barbershops%3A%2BUncut&id=kBw8uS1OjSw&img=http%253A%252F%252Fs4.ytimg.com%252Fvi%252FkBw8uS1OjSw%252Fdefault.jpg
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    Fortran I with Fortran 90 : Simpson's rule

    try calculationg a really simple integral to test your program. If that works it's probably an error of the machine. Try placing instead of real integers like 4 use 4.0. Also try placing prints along the program to see if everything is working ok. If that doesn't work try this other simpson...
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    Need to find center of mass of a rod

    Check this to understand the center of mass better: http://www.tubepolis.com/play.php?q=center%20of%20mass&title=Center%2Bof%2BMass%2C%2BConservation%2Bof%2BLinear%2BMomentum%2BPart%2B1&engine=1&id=ROYYNJkhG4g&img=http%253A%252F%252Fi.ytimg.com%252Fvi%252FROYYNJkhG4g%252Fdefault.jpg
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    Need to find center of mass of a rod

    Break it and sum. Everything is linear when talking about center of mass
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    Does a relativistic rolling ball wobble?

    I think there's a video around http://www.tubepolis.com of a numerical simulation of this. Look for rolling relativistic ball. :)
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    Are social and natural sciences connected?

    Natural sciences are not really sciences in the strict way of what science objectives are. (Read Karl popper). But humanities and sciences of course are connected.
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    Does a relativistic rolling ball wobble?

    Easy. The particles in the edge of ball are rotating. At angular speed C*R (Hoping R<1 because if not Einstein gets mad). Then the contraction it's in the direction of the velocity (whicks keeps changin beacuse of the rotation). Then there's another movement seen form the center of the mass also...
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    Upgrading to Windows XP or Vista: Which is Right for You?

    Yeah stay with Xp. You won't have any trouble. Vista sucks!
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    Words that are their own antonym

    Bisexual! Jejeje Maybe it wotks too don't you think??
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    Second partial derivatives

    I think you're right. You seem to have done everything ok. Just try to simplifiy both result solving the Newton binomials. Probably everything will reduce and you'll have your right awnser. Remember if you get tired check the trigger happy videos at tubepolis.com They're really really funny...
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