Oelm
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Even the blondes in the back row should have understood what it's all about, but Ikhtiandr seems to be aiming for a record.
So, I'll explain it for the particularly "gifted" guys who have memorized their physics textbook and are reveling in this fact. To know whether the sun revolves around the Earth or the Earth revolves around the sun (or their movement is more complex), you need to be in an INERTIAL frame of reference, which is axiomatically impossible if you believe Einstein. For the sake of convenience in calculations, a MODEL is used, stating that the Earth revolves around the sun, which is hammered into textbooks as an immutable truth. At the same time, you can also use a MODEL stating that the sun revolves around the Earth (for example, in marine navigation). When planning, for example, an intergalactic flight trajectory, both models will be unsuitable.
So, I'll explain it for the particularly "gifted" guys who have memorized their physics textbook and are reveling in this fact. To know whether the sun revolves around the Earth or the Earth revolves around the sun (or their movement is more complex), you need to be in an INERTIAL frame of reference, which is axiomatically impossible if you believe Einstein. For the sake of convenience in calculations, a MODEL is used, stating that the Earth revolves around the sun, which is hammered into textbooks as an immutable truth. At the same time, you can also use a MODEL stating that the sun revolves around the Earth (for example, in marine navigation). When planning, for example, an intergalactic flight trajectory, both models will be unsuitable.
Земля нуля.
Все в ней нулево и кукольно.
Все в ней нулево и кукольно.