A Challenge that waiting for accept the rounders have the conditions as follow:
1- graduated from a technical department of Universty
2- propose do the experiment which i recommend.
3- preferably not idiot or ignored by me.
I recommend this model for free fall instead of gravity.
The alternative model is gravity depends on one force as gravitational force.
We pre accept as we don't know anything about gravity or sky pushing.
So we'll calculate constants first.
1- We pre accept as air resistance is zero and done 3 experiments for calculating constants for each theory. 4th and 5th experiments prove us which one is near to be real.
2- We pre accept as air resistance is exist, then we'll do 4 experiments for calculating constans and air resistance. 5th and 6th experiments prove us which one is near to be real.
Confront !
You came who are you most faithless !! And Taste my sword !
Edit: Most of users don't understand what i mean or how the experiment done or what is the sense of all.
We are using the formula of gravitation for Newton's law for calculating to free fall time. It's like that: F= g*m1*m2/R^2 Actually it is a bit more complex than this but generally useful this formula.
Now.
I'm refusing that gravity is exist so i need another formula for define the calculating time for free fall.
Newton formula depends on the gravity. So i need an alternative power for gravity and recommend it as "sky pushing power".
I recommend that:
"Earth isn't pulling us, sky is pushing us". (Because
almost everything push others)
So i must suggest an alternative formula. The shape on the top depends on explaining that formula. The parameters will show after experiments.
Newtons formulas for F depends on a parameter (k*g*m1*m2) and a function f(1/R^2).
Alternative formula depends on a parameter (K*F(h)).
As we see that two formulas so different. Both two has some constants and some changeables. Changeables depends on (1/R^2). for Newton's law and for us depends on (H) for our formula.
It is generally accepted that Newton's law is correct. But "g" is actually a constant but changes by location and by the altitude. It is unacceptable. If "g" changes, then Formulate to "g" depending on variables. It is not my problem, it is problem of who defend Newton's law of universal gravitation.
I don't accept to changing for g some values as 9,8 or 9,81, 9,82. You can get only one value for one constant! You can't change the constant!
I'll not use Newton's gravitation law, i'll use the formula depends on some (H) values and all we calculate the altitude of the "heaven" together. 
Okey.
We'll do 3 experiments for sure our constants and a variable formula;after that 4th and 5th experiments will be for show us the Newton's gravitation theory is better then "pushing by sky" or opposite is true.
Equipments requered for this test:
1- A laser meter for measuring the altitude of rock will free fall.
2- A camera for recording the experiment and prove the free falling time.
3- An altimeter for measuring the altitude (or all of experiments done at sea level), or a navigation program shows location and altitude.
Okey. You can ask where don't you understand.
Edit:
Calculating the mimimum distance of experiment added:
1- Our measuring instruments measure with precision of centimeters. (0,01 metre)
2- We need find out the changing of the g as 9,80 to 9,79 or 9,81. This means we need measure the changing of the g 0,01. it is %0,1 of g.
So we should to calculating the mimimum distance of experiment as follow:
ΔH = 1/2 Δg*t^2
0,01= 1/2* 0,001 *t^2 >> so >> 20=t^2
put t^2 to in its place
H = 1/2 * 9,80 * 20 = 98 metres.
So;
Measurement of experiment distance should be higher than 98 metres for a meaningfull experiment.
This is theorically like this but we don't need to comply to the theory, if we can not.