What you have said 54n, has made sense to me thankyou. I did not think about in like that, Now i can comprehend, that the air which has particles will fall the greater and more heavy they are, leaving space above it, - thankyou!
that creates a new problem to me know, as if you are swimming in a load of balls, like a kids ball pit, you are effectively lighter. the lower in the atmosphere you are, the more dust we are swimming in / walking through - I know we are touching the ground but what about free falling from 100 meters to ground vs free falling 100 meters from space to another point in space? There is no atmosphere to slow you down along the way, no big stack of leaves to fall onto, or mountain of feature to feather your fall, just nothingness meaning - we must weigh more, the higher up we go? making it harder and harder to go up! like a rocket will need to work harder to propel itself against nothing as it nears space?
Is that not just a steady progression into space? rather then all of a sudden going through the invisible barrier of vacuum? Am I missing something is there not actually a vacuum? If not how does a spaceship handle the 1000mph side winds while up in space from the earths rotation? Or does it leave earths atmosphere ( and enter a new vacuum ) all of a sudden coming to an abrupt stop instead?
Something still doesnt add up in my mind, I suppose if they launched the rocket directly above the north pole, they would have 0mph momentum from spinning globe, and encounter 0mph side / entry speed when entering space - but do they launch from the north pole? or aim for it? otherwise At some point, astronauts must encounter ( or leave ) this high speed from the spinning globe and its atmosphere?
or am I missing somthing else too?
Ive never seen it explained, how the transition from spinning 1000mph, comes to an end when getting into space, just that the thrust momentum stops - what about the sideways speed?
as for the experiments already been done, I cant find any documented, although I have stumbled accross auguste piccard
He said, the ship they were in started leaking - Now to me, that does not outright suggest a 'roof' but it does suggest, if the roof / dome is filled with water, that they found it.
Its funny how stars when zoomed in, look like they are been seen through waves of water.
EDIT: Im sorry after listening to that again, it does not make clear sense to me 'what' is leaking the air balloon? the container piccard was within or something else? and also leaking what? air / water / something else?
I had my wires crossed, sorry. I cannot verify what he is talking about afterall 
Auguste Piccard in 1931 with Paul Klipfer in helium balloon reached height of 51775ft.
From 52000 ft horizon is 280 miles away. The Earth is way bigger than that, with radius of 3960 miles.
They were carried by winds, balloon leaked, but they patched it with vaseline and cotton rags.
https://en.wikipedia.org/wiki/Auguste_PiccardAs we go higher, helium balloon becomes "heavier" (less light) COMPARED TO SURROUNDING AIR.
It is because the air gets thinner and lighter the higher you go, and at some height balloon starts floating, like jellyfish in sea water.
As we go away from Earth our revolving around Earth's center decreases because of conservation of angular momentum.
Product of tangential speed and radius tends to remain constant.
Same effect ballerina uses when pulling her arms closer to body to speed up pirouette.
Speed of arms around the body increases as their distance from the body decreases.
Leaving Earth gives the opposite thing, but it is not required, as you will see later.
As we are further from Earth we actually become lighter, because our weight depends on distance from Earth's center squared.
Rocket leaving surface must carry lot of fuel, but the fuel has weight too, so rocket needs more fuel to carry it, and so on.
Using brute force to just push toward Space will not be good enough.
Using centrifugal force reduces need for fuel, reducing weight of the rocket that way.
Orbiting Earth and increasing orbiting speed is easier and requires less fuel.
Throwing rock by hand using your full strength is still much less efficient than whirling it on a rope and releasing it at the right moment.
Rockets don't go to space in straight lines. They go to orbit and then extend orbit's radius to escape Earth's gravitation.
Rocket works by throwing mass of burnt fuel behind.
Fuel mass times added fuel speed returns back into rocket mass times added rocket speed, because of conservation of linear momentum.
(Both conservations of angular momentum and linear momentum are because of inertia.)
In atmosphere speed of burnt fuel is dampened by atmospheric pressure.
In vacuum there's no air pressure to slow down those gasses, just as there's no air friction to slow down the rocket itself.
Rocket works better in vacuum than in atmosphere.