"G"

So, it’s official I am no longer a student at Cambridge. I have moved back home to London to live with my father, where I will continue by dream. Some of you questioned why I called measuring G, “weighing the earth”. I called it that because G allows you to calculate Earth’s mass.

I have constructed an apparatus for this experiment, it’s a torsion balance. (I have included a picture to the right of this post.) On this torsion balance I am measuring the tiny force between lead masses, which helps me find the gravitational attraction between the small balls and the large balls. By doing this, I am able to resolve the force between the masses. The gravitational force of the Earth on the small ball can be measured by weighing it and the relative amount of the two forces which helps achieve the calculation of the Earth’s density. I figured this out with help from Sir Isaac Newton’s Law of gravitation. I am going to continue with this experiment, because I can finally sense results coming!