Recent content by schwarg2

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    Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone

    Of course I can't disagree with your car example. What this tells me is that you are understanding something that I am not. What I understand by your example is that our cars have odometers and chronometers except that whereas the odometers mark the miles no matter how fast you go or which route...
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    Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone

    I'm sorry "why does time appear to speed up and slow down?" is what I meant to say. It seems to do so when the twins compare clocks after the interstellar trip.
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    Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone

    Ok I'll give them a try. And what happens if the spaceship just goes round and round Earth at the speed of light? When he lands will time have gone quicker on Earth than on his spaceship? I really don't get that. Does that mean that the photons that photons around us could be hundreds of years...
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    Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone

    But wouldn't the twin in the spaceship see the eart twin's clock moving very quickly and the Earth twin would see the spaceship twin's clock move very slowly? Is it worth understanding this concept? I feel lightyears away from getting the damn thing.
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    Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone

    I about halfway to understanding the twin paradox. I just don't get why time can speed up and slow down. So can someone tell me what would happen if twin #1 could call twin#2 on a special phone that would allow them to talk while twin #2 is speeding away from twin #1 at light speed. Why why...