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Nightshift
Laws 2 and 3 apply to the rockets thrust.
What other tangible 'yardstick' can we use for pressure thats relative to us living on Earth.We do use the pressure of space to compare our atmospheric pressure. And the pressure in space is zero.
Its all theory. Until you can actually show something factually it is theory.Even the end of our Universe has to have a boundary.Whether its finite or infinite. Its a debate that will continue for all time ,until it is actually proven.
All theories relating to the size of the universe have had to have other unproven theories added to make the original theories plausable. So theres a lot of assumptions being made, not proven.
To reverse the situation; Is there a centre of the Earth?
I could say no!
Travel to the centre of the Earth and put a dot there. Then halve that dot, then halve that dot, then halve that dot, then halve that dot and you can do that infinitely.So no there is no centre of the Earth.
But there is a centre of the Earth. The term infinity itself suggests boundaries. Aristotle explained this better than I can.
Whichever train of thought you wish to follow will ultimately bring you to the conclusion that the answer cant be proved or disproved.
In a truly infinite universe youll have an infinite number of everything, including dimensions. So in other dimensions you'd possibly have other universes. So if there's other universes there would have to be a boundary between this universe and the others so therefore the universe isnt infinite.
So an infinite universe is a contradiction to itself.
Just because we cant see the edge of the universe doesnt mean there isnt one.
By including space in your description of the universe youve also placed the constraint of time as well. You cant have one without the other.
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