So, I'm making a universal law of gravity lab for a Physics project. The person inputs the mass of the object and its height off the ground into Edit Boxes, and a counter spits out the weight in Newtons. The contents of the edit boxes become alterable values, which are fed into the universal law of gravitation formula. The problem is that for some reason, the counter displays a number that can't possibly be right. I have a feeling it has something to do with an overflow error, since the mass and radius of the Earth are in the equation as well. Does anyone know what's up?