2. Star Formation
1. The forces of matter
Once science tells us about the universe as a great bonfire which started 13.700 millions of years ago, we could ask: how it becomes in what is today? Because in a bonfire only fire, ashes and hot temperatures can be founded. For that, science describes matter for what it does. You only know what a thing is by watching what it does. Science, then, observes, and classify only four levels of activity. These four levels or forces are the gravitational, the electromagnetic, the strong nuclear force and the weak nuclear force.
First is gravitational force, which creates attraction between masses. If there is only gravitational force, everything ends shrinking into a small globe
Electromagnetic force produces attraction and repulsion, and is stronger than gravitational force. We don’t feel the forces of electromagnetism: when I am nearer to a building, I don’t feel its force of attraction. Earth attracts us because of its huge mass, but I feel it only because of its planetary size. But electromagnetic force is near 10.000 trillion more powerful than gravitational force and is the one which makes matter hard and impregnable. When I clap my hands and they cannot merge, or when I am on the ground and I don’t sink on it, this is due to different attractions and repulsions that stopped a fusion between bodies.
Electromagnetic force is what gives place to all the chemical reactions needed for life. Along with strong nuclear force and weak nuclear force, electromagnetic force produces atoms.