I am the process of 13.7 billion years of cosmic evolution and I comprise by weight 43kg oxygen 16kg carbon 7kg hydrogen 1.8kg nitrogen 1kg calcium 780g phosphorus 780 140g potassium 140g sulfur 100g sodium and other trace elements.
I would like to welcome everyone to the official opening of the Melbourne Solar System – a permanent one to one billion scale model of our actual Solar System.