Apparently there's a Higgs-Boson particle they're looking for at the Large Hadron Collider, the "God Particle" which gives all particles weight.
So think of SPACE as a Trampoline... put a 2inch block under 1 side and roll some marbles from the high end to the other. They travel in a straight line.
Now, the Higgs-Boson particle, or WEIGHT is like putting something on the Trampoline, say a bowling ball in the middle.
Now when you roll some marbles from the raised end of the Trampoline, they move in a curve towards the bowling bowl.
So MASS, or the Higgs-Boson particles in MATTER, curve space time like the dent in the trampoline that the bowling ball makes.
The closer you get to the bowling ball, the tighter the curvature.
If your space ship was travelling past Earth, it too would curve towards Earth due to Earth's mass causing curvature in space time, just like the marble curves towards the bowling ball.
So Gravity is the force that results from space time curvature centered around mass.
Now remember the bigger the mass, the bigger the curvature and the bigger the force of gravity, and the closer the two objects, the bigger the force of gravity.
So Newtons formula for gravity between 2 objects is
g = m1 * m2 / d^2
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Artificial gravity is just due to your inertia, because you are constantly changing directions going around in a circle you must be constantly accelerating. Acceleration and G force are 2 sides of the same coin.
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