Recent content by happyhacker

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    B Consequences of a 1 Tesla magnetic field coming into the proximity of Earth?

    What would be the consequence if a powerful (1 Tesla) magnetic field came into proximity of Earth? Options open concerning size of generating body and distance. Thank You.
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    I Can Conducting Current Through a Bar Magnet Cause Movement?

    Are you expecting the battery to influence the magnet. A battery will produce a field if a current if flowing through it but in your 'circuit' nothing is happening afaics. Draw a circuit.
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    Can Sci-Fi Writers Use Real Science to Enhance Their Stories?

    Thanks so much for that pinball and your time. I will look into your refs. So WHO is World Health Org., CDC Centers for Disease Control and Prevention? I am in the UK. Yes, I think what I am looking for is an 'accredited' (not sure if that's the right term) scientific news aggregator. I am an...
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    Can Sci-Fi Writers Use Real Science to Enhance Their Stories?

    I am writing a (hard!) Sci-Fi novel and am considering capturing some of my research in references. I would welcome any suggestions as to online resources that pull together across all science (+ physics) disciplines the sort of subject materials I would likely need. Idea is to focus somehow...
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    Sugar content in chopped fruit to un-chopped fruit

    I was looking online for dried organic apricots. I noticed that the chopped version had higher stated sugar content of the carbohydrates (no added sugars). An enquiry to the companies contact informed me that the chopped per 100gm was denser than the un-chopped. This seems odd to me as the...
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    Navigating the Tensions in Ukraine: A Scientific Perspective

    Are the political elite in Russia suffering yet? Until they do nothing will stop this or his next target.
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    What was the first computer used for IC testing in the 1970s?

    I worked for BT back in the early seventies with the first broadband (2MB PCM switch) run on a PDP11 doing the call handling. Stored Program Control they called it although that sounds a bit weird now. It wasn't long after that the microprocessors came in with MSI. What processor did the PDP have?
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    Is it possible to deduce the software from the hardware activity?

    Possibly. You would need to observe and record output in response to inputs. Then you need to create flow charts for operations (black box approach). Then you would need to get the instruction set of the chips inside. Then you might be able to create the low level operations from the flow...
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    B Navigating To Another Star System

    I assume that as the light years to another Star reduce the position of the Star will change relative to other references in the navigation calculations. So what adjustments would be necessary to a Starship's course as it gobbles up the distance to maintain pointing it's nose at the destination...
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    Is Multiverse the ultimate sci-fi?

    Multiverse has no mathematical theory.
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    B Light Leaving Earth-Observer's View of Events in Time

    Thanks, great answers even though I was not entirely clear with my question. What is the maths for the time dilation?
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    B Light Leaving Earth-Observer's View of Events in Time

    Would an observer many light years from Earth (and approaching say) see events leading onwards through time (to what level of detail i am not proposing but say weather and maybe Humans on the ground?) in the light received?
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    B Extraterrestrial Object Orbits

    Many thanks. Read the references. Clear now.
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    B Extraterrestrial Object Orbits

    Apologies, when I wrote 'like Oumuamua' I did not mean Oumuamua just referring to it's general shape. I should also have put metres for the volume. My object is in place so it's approach is not a factor. So if that does not clarify I will withdraw the question. Thanks for the input so far.
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    B Extraterrestrial Object Orbits

    I am thinking about an extraterrestrial object like Oumuamua but say volume 750 E+9 (=750,000,000,000 I think but not sure of density although not solid rock) that takes orbit near Space to Earth. 1. Would the magnetic field of this object disturb the balance of local orbits or operation of...
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