Gravitational force is a force of very low strength as compared to other forces as Electromagnetic force the value of force can be determined by the universal law of gravitation which is: F = Gm1m2/R^2 We should know the amount of masses of both bodies and the distance b/w them to determine the gravitational force b/w them. This force is not constant, there is only a gravitational constant (G) we have which was calculated by lord cavndish through Torsion Balance.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.