re: Astronauts are travelling at 17,500 mph (5mi/sec) when they do space walks outside the ISS

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Imagine being the first astronaut jumping out of a space craft untethered and leaving your fate to Newton's First Law of motion

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Didn't read anything after this

Space isn't moving

Newton's law isn't working in space

Keep believing that govt education

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To be fair, there's no practical reason for the average high school or college student to understand how Newton improved Kepler's laws of planetary motion (amazingly accurate at solar system scales and beyond), why the ISS is moving at 17,500 mph, the importance of Lagrange Points and why the James Webb scope is orbiting at L2, and reasons for GPS satellite cesium beam clock time corrections per Einstein's relativistic theories, mainly related to time dilation.

Physics and some engineering students yes, for students outside those disciplines that knowledge is interesting but unnecessary. Practically, IMO trig by itself is sufficient and useful for life long use. Classical mechanics, calculus or quantum theory, not so much.

The OP's statements are correct; yours are not.

If you disagree, then your thoughts to reconcile Einsteinian space-time gravity with quantum theory would be very interesting, the Holy Grail "Theory of Everything" in physics.

Or, a simpler problem is why it would be so difficult to establish a GPS system orbiting our moon, a NASA thought experiment for many years.



Good luck.