Machinary with periodic revolution gives a steady, predictable calculation about celestial bodies occurrences.
Except that there is no evidence of such Machinery.
Independent celestial bodies under gravity AKA solar system is an absurd conception. It contradicts the mechanism of gravity (if it existed).
No, it doesn't "contradict the mechanism of gravity".
The "mechanism of gravity" combined with the
centripetal acceleration needed to keep an object in circular motion explains circular and elliptical orbits in a two-bodied system perfectly.
Suppose an object is moving in circle with tangential velocity,
v, at a distance,
d, from the centre.
This requires an acceleration (called the
centripetal acceleration) towards the centre of
acent = v2/r.
If you swing a stone tied to a string around your head that
centripetal acceleration is provided by the string.
But it can also be provided by gravitation, which causes an apparent attractive force
Fgrav = (some constant)/d2.For some object orbiting the earth, say the moon, that "
some constant" can be found at least approximately from
g = 9.81 m/s2 at 6731 km from the earth's centre.
The only acceleration involved in a circular orbit is
towards the centre (and that is the meaning of
centripetal) so the tangential speed remains unchanged
The maths for an elliptic orbit are far more complicated because there is
tangential acceleration as well as
radial acceleration.
Isaac Newton developed (his version of) calculus to analyse elliptical orbits such as the moon's orbit around the earth.
Newton used the "dot style notation"
for differentiation while Leibniz, at about the same time, developed the common notation
for differentiation.
Both notations are still used.
How do you resolve the gravity's mutual attraction that in fact it doesn't occur?
Easy, it does occur and the moon appears to attract the earth with exactly the same force as the earth appears to attract the moon.
How do you resolve the inertia?
There is nothing to resolve.
Inertia is simply what keeps the moon along its path - there is no contradiction.
How do you resolve the "coffee tides" #JustJoking
But the "tide" in my coffee always seems to be ebbing (going down) but maybe that's caused by my drinking it
.