All ya need to do is press that green flag, the gray heart (which should turn red), and that gray star (which should turn yellow). Those rectangles with names on them can be pushed as buttons :)
For School :) Sources: Myself, cause I made the animations :3 http://www.thestargarden.co.uk/Rutherfords-atom.html http://www.pbs.org/transistor/science/events/electron.html https://www.universetoday.com/60058/democritus-atom/ http://abyss.uoregon.edu/~js/glossary/bohr_atom.html https://www.britannica.com/biography/Robert-Millikan https://www.britannica.com/biography/Werner-Heisenberg https://www.popularmechanics.com/science/a4418/4321681/
