Much more to come in the future but right now just gravity but soon I'll try to start with more advanced simulations like radiation and atmospheric pressure. Play by dragging the red "Entity" around the blue "Planet". The legend for the variables is as follows: F = speed of fall R = distance between Planet and Entity G = force of gravity E(M) = Entity mass P(M) = Planet mass P(X) = Planet X coordinate P(Y) = Planet Y coordinate E(X) = Entity X coordinate E(Y) = Entity Y coordinate
The gravity equation was based on an equation made by little know scientist named Isaac Newton, maybe you've heard of him?