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    Physics General Subjects Thread


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    Post  kvs on Fri Jun 07, 2019 3:57 pm

    Another article which properly solves for the point mass problem in GR:

    Note the discussion at the end about the voodoo physics where by some magic a stress-energy tensor is
    not needed to solve systems which have mass and charge. That is just epic BS. The touted black
    hole solution does not have any point mass singularity. This homogeneous solution is being grossly
    misrepresented and in fact is just a repulsive space-time bubble which squeezes out a flat-space time
    into a semi-infinite shell. Actual singular (point mass) solutions do not have an event horizon.

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    Post  nomadski on Fri Nov 01, 2019 6:56 am

    Found this article about crack propagation. I have thought for some time that physical properties of the Earth can predict border formation in countries. By unknown variables of property. Such as altitude or area shared with sea coastline or temperature. Leading to fracture. Can this be simulated and predicted in computer? Like fracture in materials? If you look at small land mass connecting big land mass, then you get lots of small countries. Fractures. Or an island nation near big land mass, creates lots of small country or fractures. Area near sea contain fractures that run parallel to coast....

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