Recent content by Erk

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    Undergrad The laws of thermodynamics and the Universe

    Since an adiabatic system is within a surrounding the notion that it's the same as a closed system is highly suspicious. It has never been determined there is a scale at which an impenetrable surface actually exists.
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    Undergrad The laws of thermodynamics and the Universe

    Yes. You mentioned the notion of a universe with no surroundings, and that was what I was responding to. The absolute absence of an environment, including (and not except for) absolutely nothing. This speaks to the first law and also a perpetual universe. Without absolutely nothing there isn't...
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    Undergrad The laws of thermodynamics and the Universe

    If the universe has no surroundings then it is a closed system. It has no environment in which anything can exit into or enter from. Therefore, in that case the first law applies.
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    High School Finite & Infinite: Univerally Accepted Definitions?

    This is exactly what I'm getting at – what I'm trying to understand. I think it's fair to say that finite means a beginning and end. A measurable amount of anything. However, in math it appears as though infinite is not treated as its "not" or opposite. As I mentioned before, it's treated as a...
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    High School Finite & Infinite: Univerally Accepted Definitions?

    I'm first and foremost wanting to understand math's definitions of them in a more fundamental fashion i.e. as nouns and not adjectives. That being said I suppose we should stick with finity and infinity?
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    High School Finite & Infinite: Univerally Accepted Definitions?

    I'm troubled by what I think the 'community' considers them to be, but I'm not sure if I'm correct. It appears as though finite is thought to have both an end and a beginning, but is it true that infinite (infinity) is thought to only have no end? Is this accurate? If so, then it would seem like...
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    High School The correlation between a dimensionless point and a line

    I see no correlation between a dimensionless point and a line although it appears that math has made one. I'm just a philosopher so it's quite possible that I've got it all wrong. It seems as though any location along a line is always the same location. If a location has no size then it can't...
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    High School Curvature at the center of a spherical universe

    I'm speaking of the surface only. The ball is the accumulation of all that is inside the surface and it together with the surface would equal the universe I just described.
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    High School Curvature at the center of a spherical universe

    Allow me to introduce a related notion if I may. Let's take the case of a single spherical universe with absolutely nothing else outside of it. If the sphere is perfect then the only location that anything can be within it, must be the absolute center. In other words, no matter where we are...