User talk:JohnXR

Censures to your Answer to Critique 1&2 and 3:

Here is Newton’s equation, F=GMm/R^2

M=mass of earth m=mass of 1kg on the surface of earth at rest (remember not moving) R= radius of earth (radius of small mass on earth is neglected) G= Universal constant is used in order to get the value of “g” for equation f=ma=mg.

Now increase the size aforementioned mass “m” to imaginary earth and again, apply the Newton’s law

F=GM^2/D^2 where D=diameter of earth viz c/c distance b/t two masses.

Thus if gravitational law is true then GM/D^2=g=acceleration due to gravity , is true. What do you think value of G can justify the value of “g” at that height.

Further is it possible for a body to have acceleration “g” at rest position? If not how f=mg is possible for a body is at rest position. Similarly acceleration or “g”depend upon time and time dilate as per Sir Eienstein as one away from celestial bodies. For “g” time has to be constant thus if Eienstein is right then Sir newton is wrong. Thus if gravity is wrong how could Sir Eienstein talk about black hole gravity and the same is apply to neutron star.

2nd part: As m1 attract m2 due to its gravity and m2 attract m1 due to its gravity. Both gravitational forces are same in magnitude but opposite in direction. How could they move towards each other. Similarly in order to satisfy newton’s gravitational law one has to be falling and the other gravitating mass and how value of G has to be adjusted in the equation. Since both masses are staying at their position therefore how come a force of value G newton is exits. This means value of universal constant G is wrong which fail to justify the Newton’s law in aforementioned cases. Sir Eienstein used value of G in his many important equation.

g= GM/R^2, it does not depend upon the mass of the falling object. I just wanted to tell you that mass with bigger size will hit the ground first because of its bigger size. Answer to Critique 4:

What do you think I don’t know about this. Grab a calculator, pencil and piece of blank paper and find all the required values and apply Newton law of gravitation to the following cases.

1: sun and moon in apogee, perigee and average (s-e-m, s-m-e, s-e when m at right angle to e approx both e and m are at same distance from s) 2: sun and earth in apogee, perigee and average and 3: earth and moon in apogee, perigee and average

s ----------e------m, s-------- m ----e, s-------------------e,m is up or down at right angle to e.

After finding all values of forces then do the simple math (+, -)for F. You will find gravitational force b/t sun and moon in any of above case is much greater than gravitational force b/t earth and moon. So if newton law of gravitation is true then moon should revolve in a separate orbit not along with earth around sun.

Here is critique 5:

Let “P” is a point or an origin of two circles of radius r1=1 meter and r2= 2 meter. Consider these two circle as spheres (empty from inside) or consider these circles as two bangles in space. Now apply Newton’s law of gravitation i.e. F=GMm/R^2 to those two masses and neglect all other local attractions. As gravitational force of attraction between these two bangles is infinity (center to center distance b/t masses is zero) Now how much force is required to separate aforementioned masses, infinity or less? If less then what about the Newton’s law? 96.52.178.55 (talk) 05:09, 15 February 2009 (UTC) zarmewa khattak[reply]

Critique 6:

Galileo had concluded hundreds of years before - All objects released together fall at the same rate regardless of mass. i.e. g = GM/R^2 and had proved on the lunar surface by falling feather and hammer at the same time in the absence of air.

Atoms and molecules of air or gases have also masses. Therefore there was no one with the brain who could ask Newton/Galileo that why the masses of atoms or molecules of air or gases do not fall at the same rate on the surface of earth along with other masses or obey the Newton law of gravitation. Further movements of air molecule in atonosphere depend upon temperature and Newton did not mention any temperature in his law of gravitation.