In Season 2, ep 4 of Star talk Radio, host Neil Tyson is talking about the international space station. He mentions that the space station is in a low earth orbit and is falling along the curvature of the earth due to the gravitational pull of the earth. This falling along the curvature of the earth allows the astronauts to still experience weightlessness.(Around minute 12 of the episode). I’m wondering how this works from a physics stand point as I’m having a hard time wrapping my mind around this.
Couldn’t you say that a flight on the ISS is the same as a flight on an airplane just at a much greater speed? Since the earth’s gravitational pull is roughly equal on the plane as it is to the ISS, why don’t passengers on airplanes feel the same effect?