Recent content by Gonçalo

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    Graduate Helmholtz Theorem on Decomposition of Vectors

    Does anyone know anything about this? I got a look at wolfram.com and I didnt get much. I would like to prove that in fact, any divergenceless vector field can be decompose in a toroidal part and a poloidal part. And I think the proof of this is somehow related with this theorem...
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    Hints in Tangential Geostrophy?

    Thanks Andre. By the way, do you know where can I get the full articles, besides the abstracts? That one of the 3 portuguese scientists looks interesting for me.
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    Hints in Tangential Geostrophy?

    Anyone could give me some hints in Tangential Geostrophy? Websites, papers, anything... Cheers!
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    Mathematica Creating Executable Files with Mathematica (Wolfram)

    Is it possible to make executable files with Mathematica (wolfram)? Or do I always have to have the program to run it?!
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    Top Recommended Science Sites for Learning and Research

    I wonder what kind of Science Sites people woud recommend. I often use http://wolfram.com/ which gives me a great deal of insight in most of the tecnical problems I have, as well as lots of information in other general knowledge subjects.
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    Undergrad Why Do Astronomers Relate Star Distance to Universe Age?

    Question When astronomers find a new star, say 15 billion light years away, why do they immediately relate that distance with the age of the Universe (the distance to the Big Bang point)? --->cause if the Universe were like a balloon, and the Earth and the star were in the the...
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    Undergrad Age of Universe: Dist. to Big Bang vs New Star

    Question When astronomers find a new star, say 15 billion light years away, why do they immediately relate that distance with the age of the Universe (the distance to the Big Bang point)? --->cause if the Universe were like a balloon, and the Earth and the star were in the the surface of...