No 4 - Things do NOT fall because of density:

No 4a) Density in Zero g:
- It is proposed that things rise and fall due to density, which on the surface seems plausible, however, this can be disproven because things don't separate in zero g.
(See figure 4a-1)

- Different density liquids in zero g
(See video No 4a-2)
https://www.youtube.com/watch?v=rpP-7dhm9DI

(Aklerselter and water in zero g):
(See video No 4a-3)
https://www.youtube.com/watch?v=bgC-ocnTTto

(See video No 4a-4)
https://www.youtube.com/watch?v=wIiZCbyqJu4
--------------------
No 4b) Differential Pressure:
- In the same density medium, there should be no separation and therefore no force, however in real life, pressure goes up as you go down, even if density doesn't go up, or hardly goes up at all.
- Is there more pressure because things are more dense, or is there more pressure because gravity pulls the material above it and it squeezes down on the material below?
(See figure 4b)
--------------------
No 4c) How BUOYANCY works:
- Because there is a difference in pressure on the bottom of an object vs the top of an object, there is a net force pushing upwards.
- This difference in force is due to gravity pulling down on material, therefore the material above exerts a force on the material below.  The deeper you go the greater the pressure.
(See figure 4c)

https://www.facebook.com/groups/2205176794/permalink/10154433824746795/