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Cake day: June 19th, 2023

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  • mexicancartel@lemmy.dbzer0.comtoMemes@lemmy.mltime to think
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    1 day ago

    Tine machine probably moved in its own inertial reference frame. That will actually get you lost in space because the inertial frame does not orbit around, which involves rotation(rotation is intrinsically non-inertial, i.e accelerating). Time machine’s frame will be moving in a straight line if its inertial



  • mexicancartel@lemmy.dbzer0.comtoMemes@lemmy.mltime to think
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    1 day ago

    That’s what einstein said. There is no fixed reference frame, but only relative ones. Every “inertial”(meaning, motion without any external force) frame of reference is equally valid as any other inertial frame movibg with respect to it.

    But for sure we can tell earth’s orbit is not inertial since circular motion occur, which is due to external force of gravity.

    Edit:typo