Recent content by #Thomas#

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    A Throwing gravity and dark energy in the same basket

    (I suck at math... but I really like physics. In school, I flunked math on a regular basis and somehow managed to get decent physics grades... in spite of terrible math skills. But what I am good at is getting an image in my head of the physical properties of the universe and how it behaves.)...
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    Why Are Subterranean Colonies Rarely Proposed in Space Colonization Scenarios?

    I have read what you said, you are being fair, and I respect that, I was merely elaborating on what you've said. Also oxygen depletion worries you, this has been considered as well, there is almost a consensus between colonization proponents that the first colony should have access to "local"...
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    Why Are Subterranean Colonies Rarely Proposed in Space Colonization Scenarios?

    If you have a crack underground, the air has almost nowhere to go, it can leak for hours before any danger is incurred. And if you're worried about micrometeorites... just dig deeper! But if there is a problem... compartmentalization can easily fix it. Your arguments are invalid.
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    Why Are Subterranean Colonies Rarely Proposed in Space Colonization Scenarios?

    Of course I am being reasonable and fully expect that we must begin with at least some surface infrastructure to support those drilling operations, but overall, in terms of longevity, it is the preferable alternative! After all, colonization is about actually staying there!
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    Why Are Subterranean Colonies Rarely Proposed in Space Colonization Scenarios?

    I've been investigating hypothetical scenarios for space colonization and something struck me odd: Over 90% of all proposals involve constructing some sort of surface habitats, but almost none are willing to entertain the notion of having subterranean colonies. Why is that? Why is building...
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    I Black Holes - Spaghetification countered by time dilation?

    You will pardon me if I haven't seen this before, the forum has so many old topics, its difficult to find what you're looking for, especially for somebody who doesn't attend it much like I do.:confused: Well once again we are in the subjective interpretation of what the black hole's properties...
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    I Black Holes - Spaghetification countered by time dilation?

    I am not talking about observers, I am talking about matter in general. Any references I made to the observer was not as an actual person but merely a point of view, like in from where you look at it. But both my questions are sepparate from each other. The spaghetification is an entirely...
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    I Black Holes - Spaghetification countered by time dilation?

    I am not speaking about multiple dilations here, only multiple points of view. If you are outside the black holes' sphere of influence, you will see matter spiral in ever slowly. If you are ridiculously close, you will see the entire universe speed across its life cycle. Now, assuming that the...
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    I Black Holes - Spaghetification countered by time dilation?

    This is what I'm saying - you have 2 positions, position "A" and position "B", where time dilation at position "B" slows time to 50% of normal. - If you are in position A, 30 seconds will pass in position A, while only 15 seconds will pass in position B. - If you are in position B, 30 seconds...
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    I Black Holes - Spaghetification countered by time dilation?

    Eh... time dilation is actually a physical, quantifiable phenomena, we even had to adjust our GPS satellites to account for it. If you get ever closer to a black hole, whatever is outside will go ever faster. According to Einstein, time is relative to the observer, but it is definitely not an...
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    I Black Holes - Spaghetification countered by time dilation?

    Here is an oddball that I am wondering - could the spaghetification be countered by time dilation? Because as you approach a black hole (assuming you go in legs first) not only do your legs experience higher gravity than your torso, but they are also subjected to more time dilation - as they...
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    Found a bottle of uranium nitrate, safe to be around?

    Look, wherever his workplace is, they must have some measuring equipment for this!
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    Found a bottle of uranium nitrate, safe to be around?

    We are not talking about some ridiculous accuracy here, just so that he could determine whether he has been exposed to less than 250 miliseverts, which is the safe dosage.
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    Found a bottle of uranium nitrate, safe to be around?

    Guys... what is there even to discuss? Just have him grab a Geiger counter and measure if there's any danger. Problem solved.
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    Thermodynamics behind the heating of Saturn's moon Enceladus

    Apparently I knew that, which is why I came here in the first place. Could it be that it has some decaying radioactive elements inside its core?
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