Recent content by Cold_Fusion

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    Supersymmetry and Fusion Catalysis

    That's not too surprising. I still think they would work for this process in principle but wouldn't have long enough lifetimes and far too high an energy cost to be useful. Here's hoping something may come from muon-catalysed and thermo-fusion!
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    Supersymmetry and Fusion Catalysis

    I've often been fascinated by the tantalising nature of muon-catalysed fusion, and have recently been pondering it in the context of supersymmetry. As a Chemist first and foremost, the nearly-chemical nature of the muon-catalysed fusion process really draws my attention. To my understanding...
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    What should I do to become an astrophysicist at 13 years old?

    I'm an English-educated professional scientist (admittedly Chemistry, but Physics was my first love) and I know from experience that it's very dependent on the school you're at and the teachers you have. I learned differential equations at 14-15 years old, but I have friends from similar...
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    A few questions about black holes

    Care to expand? I know quark matter, which remains hypothetical, has been suggested but you seem to be being very definitive here. In what way does its structure change? In the thought experiment I've proposed, the stellar material of the neutron star that's on the edge of becoming a black...
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    A few questions about black holes

    The term infinite density is applied due to the calculation: Density = mass / volume with the volume of a black hole => zero However, it seems clear that a black hole does not have zero volume, simply that the "internal" volume of the black hole is hidden by the event horizon. This gives...
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    A few questions about black holes

    I fully understand that, I'm just clarifying that there should be no physical change to the matter itself as the black hole forms and using the word "collapse" as a turn of phrase. I'm emphasising that the change in the curvature of the spacetime is what causes the "collapse" from neutron star...
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    A few questions about black holes

    Yes that's what I was driving at. Of course, but this is skirting the thrust of the question which is: Does the matter inside a black hole change by virtue of being inside a black hole? As far as the matter is concerned, surely nothing has happened at all. For example - if you were passing...
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    A few questions about black holes

    I have to say, that's not a very clear way of saying what I think you're trying to say: If there is any space (empty or otherwise) within an event horizon, then it DOES have internal volume and hence a non-infinite total density although, as stated, an apparent infinite density as observed from...
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    A few questions about black holes

    I'm torn whether to start a new thread or to add to this one, but I wanted to raise a question: I've always had an issue with the term "infinite density" being applied to a black hole. Obviously black holes have a finite mass and a finite gravity. The "infinite" part comes from the...
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