there is no such thing as "orbital height"
you can put a pencil in orbit if you throw it fast enough parallel with the ground.
the closer you are to the ground the faster you have to move horizontally to gain enough momentum to break free from the earth's gravitational pull.
"orbital velocity" is the speed the pencil will have to travel to break free from the earth's gravitational pull.
height has nothing to do with anything.
the only reason why we put our shuttles and space stations so high up in orbit is because the vacuum in space doesn't cause any "air - friction" to slow down the ship and cause it to fall back to earth. its like putting your hand out through a car's window while driving and not having to fight the air pushing against it.
that is by the way the reason why the moon landers didn't need a heat shield.
they could orbit the moon very close to the surface before they came down for a landing.
in fact, if you hit a tennis ball and it travels horizontally away from you, it is in fact in orbit around the earth for a few brief seconds.
there is no such thing as "orbital height"
you can put a pencil in orbit if you throw it fast enough parallel with the ground.
the closer you are to the ground the faster you have to move horizontally to gain enough momentum to break free from the earth's gravitational pull.
"orbital velocity" is the speed the pencil will have to travel to break free from the earth's gravitational pull.
height has nothing to do with anything.
the only reason why we put our shuttles and space stations so high up in orbit is because the vacuum in space doesn't cause any "air - friction" to slow down the ship and cause it to fall back to earth. its like putting your hand out through a car's window while driving and not having to fight the air pushing against it.
that is by the way the reason why the moon landers didn't need a heat shield.
they could orbit the moon very close to the surface before they came down for a landing.
in fact, if you hit a tennis ball and it travels horizontally away from you, it is in fact in orbit around the earth for a few brief seconds.