Nucleosynthesis Simulation

[saimachi]

I implemented a simulation for Nucleosynthesis, specifically the Proton-Proton Chain, the process by which main sequence stars fuse Hydrogen nuclei to produce Helium isotopes and tremendous energy. There are a couple of points about my implementation:

1. The buffet table does not permit the user to drag-and-drop particles to add into the simulation.
2. When the final stage (two Helium-3 nuclei collide to form one Helium-4 molecule and two Hydrogen nuclei) is reached, the two participants do not accelerate and collide unless the user adjusts the Speed slider.

Thank you.